Ecology Guideline
For theICT Industry(Version 2)(Draft)February,10, 2011
ICT Ecology Guideline Council

Ecology Guideline For the ICT Industry

1.

2.
3.

4.

5.

6.

7.

Ecology Guideline Contents
Background and Purpose ········································································ 3
1.1 Background ····················································································· 3
1.2 Purpose ·························································································· 3
Definitions ··························································································· 4
2.1 Definitions of Major Guideline Terminologies ········································ 4
Relative Positioning and Expected Impact ·················································· 5
3.1 Scope ····························································································· 5
3.2 Policy ····························································································· 6
3.3 Expectations for Respective Parties ······················································ 6
3.4 Expected Impact··············································································· 8
3.5 Revisions ························································································ 8
3.6 Notice of Disclaimer·········································································· 8Outline of the Guideline ········································································ 10
4.1 Assessment Standards for Equipment Covered ···································· 10
4.2 Effort and Assessment Criteria for the “Eco ICT Logo” ························· 23
4.3 Image of Guideline Implementation ··················································· 24
Assessment Standards ·········································································· 25
5.1 Assessment Standards ····································································· 25
5.1.1 Scope ··················································································· 25
5.1.2 Stance on Other Assessment Standards ······································· 27
5.2 Equipment Definitions, Figure of Merit, Normative References, Measurement
Procedures ···················································································· 28
5.2.1 Routers ················································································· 28
5.2.2 Switching Equipment ······························································ 32
5.2.3 Transport Equipment ······························································ 37
5.2.4 PON Equipment ····································································· 43
5.2.5 Broadband Base Station Equipment ··········································· 47
5.2.6 Power Supply Equipment ························································ 59
5.2.7 Server Equipment ··································································· 64
5.2.8 Storage Equipment ································································· 69
5.3 Implementation ············································································· 71
Assessment Standard for Data Centers ····················································· 73
6.1 Basic Approach to the Assessment Standard ········································ 73
6.2 Definition ····················································································· 74
6.3 Figure of Merit on Energy-Saving as an Assessment Standard ··············· 74
6.4 Outline of Figure of Merit on Energy-Saving ········································ 76
6.5 Implementation ············································································· 77
Assessment Standard for Eco ICT Logo ···················································· 78
7.1 Purpose ························································································ 78
7.2 Checklist······················································································· 78
7.3 Eco ICT Logo ················································································· 81
7.4 Implementation ············································································· 82
1

Ecology Guideline For the ICT Industry

Diagram of Logo for Reference ······························································· 84
Attachment 1 Self-Assessment Checklist for CO2 Emission Reduction Efforts by
Telecommunications Services Providers ······························ 85
8.

Reference Material ··············································································· 86
8.1 List of Members of the ICT Ecology Guideline Council (2009) ················· 86
8.2 List of Members of the ICT Ecology Guideline Council (2010) ················· 86

Revision History
Initial version: Version 1, February 1, 2010
Revised: Version 1.1, December 27, 2010
Revised: Version 2,

Registered trademark, trademark
SPEC® and SPECpower_ssj® are registered trademarks of the Standard
Performance Evaluation Corporation. Other enterprise names and product names
mentioned in this Guideline may be registered trademarks or used as trademarks as
well.

Contacts
Telecommunications Carriers Associatione-mail: enq@tca.or.jp
Telecom Services Associatione-mail: jimukyoku@telesa.or.jp
Japan Internet Providers Associatione-mail: info@jaipa.or.jp
Communications and Information network Association of Japane-mail: ecoc@ciaj.or.jp
ASP-SaaS Industry Consortium
e-mail: office@aspicjapan.org

2Ecology Guideline For the ICT Industry

1. Background and Purpose
1.1 BackgroundIn the face of global warming, Japan must take responsible action to reduce CO2
emissions and the info-communications technology (ICT) industry needs to further
strengthen its own voluntary efforts currently in effect.
As mentioned in the April 2008 Report Released by the “Study Group on ICT
Policy for Addressing Global Warming (Ministry of Internal Affairs andCommunications: MIC),” the use of ICT can dramatically increase efficiency inproduction, consumption and industrial activities and greatly contribute to the
reduction of carbon emissions by replacing physical travel and easing traffic
congestion. However, the growth in the scale of ICT services which are realized
through configuring network equipment, servers, and other devices, and theresulting traffic volume have led to increased consumption of energy (electricity),translating into escalating CO2 emissions.
To address this increase in CO2 emissions, the MIC report released in June 2009 by
its “Study Group on Ecological Measures in the Info-communications Industry”
listed (i) the procurement of energy-efficient equipment by telecommunications
services providers and (ii) making reductions in CO2 emissions bytelecommunications services providers more visible - as two of the numerous
effective measures in decreasing CO2 emissions. It also sought the creation of aguideline by ICT associations with the cooperation of equipment vendors and otherrelevant entities, covering such topics as “assessment of CO2 emissions byequipment,” “labeling” and “Eco ICT Logo.”With the release of this MIC report, the five industry organizations:
Telecommunications Carriers Association (TCA), Telecom Services Association(TELESA), Japan Internet Providers Association (JAIPA), Communications andInformation network Association of Japan (CIAJ) and ASP-SaaS Industry Consortium(ASPIC) created the “ICT Ecology Guideline Council,” (hereafter referred to as“Council”) on June 26, 2009 to contribute to decreasing CO2 emissions through thecooperative efforts to lower energy-consumption among ICT equipment users –including telecommunications services providers - and manufacturers. The missionof the Council is to (1) determine an “assessment standard” for use inenergy-efficient “procurement standards” of equipment and data center services bytelecommunications services providers and (2) create a guideline for “establishingprocurement standards” and a “self-assessment of actions” to indicate appropriate
CO2 reduction measures taken by individual telecommunications services providers.

1.2 Purpose
Curbing power consumption by the equipment used to provide services is aneffective way for telecommunications services providers to reduce CO2 emissions. To
3

Ecology Guideline For the ICT Industry

that end, it is appropriate for individual telecommunications services providers toestablish “procurement standards” for buying telecommunications equipment andservices that emit lower amounts of CO2.
Furthermore, telecommunications services providers need to endeavor to increaseenergy efficiency across the entire business spectrum. To further promoteecology-conscious actions by telecommunications services providers, individualcompanies need clear normative actions, and there needs to be a framework that
simplifies assessment by a third-party.
In consideration of these factors, this Guideline sets forth points 1) and 2) below
and by doing so, seeks to enhance ecology-conscious actions, such as efforts to
reduce CO2 emissions by telecommunications services providers. This Guideline also
aims to promote ecology-consciousness among non-telecommunications services
providers who use ICT equipment.
(1) Guideline to establish procurement standards of energy-saving equipment
Indicate an “assessment standard” to assist the formulation of “procurement
standards” by telecommunications services providers for equipment and services
with a focus on the reduction of CO2 emissions.
(2) Guideline for disclosing self-assessment of ecology-conscious actions
Prepare a framework for public disclosure that facilitates an understanding of thestatus of efforts to reduce CO2 emissions, in order to show that telecommunications
services providers are appropriately making such efforts. To that end, the Council
will provide a Self-Assessment Checklist and “Eco ICT Logo.”
Furthermore, this guideline is a reference for telecommunications services
providers in establishing voluntary procurement standards. It is possible that
equipment deemed necessary by telecommunications services providers due toperformance and functional requirements do not meet the energy-saving standardsof this guideline.

2. Definitions
2.1 Definitions of Major Guideline Terminologies(1) Telecommunications services providers
Under this Guideline, an entity providing telecommunication services based on the
Telecommunications Business Act is referred to as a telecommunications services
provider. Moreover, the term is not limited to entities belonging to an industry
organization.
(2) Vendor
Under this Guideline, “vendors” refer to all equipment manufacturers (including
OEM businesses) but does not include businesses dealing solely in sales anddistribution.
4

Ecology Guideline For the ICT Industry(3) Eco ICT Logo
A symbol for broadly disseminating to the public that self-assessment of CO2
emission reducing and other ecologically conscious activities are being performed.
(4) Figure of merit
An index used to calculate the energy-saving effects of a device or data center.
(5) Assessment result
A result of assessment based on actual measurement.
(6) Normative reference
An assessment standard (expressed as an assessment scale) for determining theenergy-saving effect.
(7) Assessment scale
An assessment scale of five ranks representing rate of reduction in energy
consumption vs. the normative reference shall be used to facilitate the understandingof the energy efficiency of devices or data centers. Ranks are indicated by the numberof stars (★). The greater the number of stars, the greater the energy efficiency.
(8) Self-assessment checklist
A table of assessment items established by the Council to be used for
self-assessment and public disclosure of ecology-conscious actions.
(9) Assessment standard based on the Top Runner Program
Target reference values for energy conservation set forth under the Act on the
Rational Use of Energy (hereinafter referred as the Energy Conservation Law).

3

Relative Positioning and Expected Impact

3.1 ScopeThis guideline basically applies to telecommunications services providers but also
considers serving as a reference for companies outside the scope oftelecommunications services providers that are planning “procurement standards”
or are engaged in broader efforts to reduce CO2 emissions.
The scope of who the assessment result information in this Guideline shall be madeavailable to will broaden in phases. In Step 1, the information shall be provided tothose who are procuring mainly ICT equipment. In Step 2, the information shall bemade available with no restrictions, in order to promote ecology-consciousness
among all users of ICT equipment.
5Ecology Guideline For the ICT Industry

In addition, the “Eco ICT Logo” shall be used not only by a person who operates a
telecommunications business defined under the Telecommunications Business Act,but may be used by a person who operates a business related to telecommunications
services using substantial ICT equipment.
3.2 Policy
As stated in 1.2 Purpose, the policy of this Guideline is to (1) lay down guidelines
for establishing a procurement standard of energy-saving equipment amongtelecommunications services providers and (2) lay down guidelines for
self-assessment and disclosing ecology-conscious actions.
As for (1), laying down guidelines for establishing procurement standards ofenergy-saving equipment among telecommunication carriers, this Guideline sets
forth:
 categories, relevant equipment and assessment standards that can be shared
amongst the vendors and companies making the procurement; and directions for easy-to-understand notations to be used by those involved in
procurement.
As for (2), laying guidelines for self-assessment and disclosing ecology-conscious
actions, this Guideline proposes:
 a method of public disclosure using self-assessment checklists and “Eco ICT
Logo.”
3.3 Expectations for Respective Parties
By creating this Guideline, we expect the respective parties to take the following
actions:(1) Telecommunications services providers[1] Establishment of Procurement Standards
Referring to the figure of merit and assessment standards provided in thisGuideline for equipment and data centers, telecommunications services
providers shall formulate their own procurement standards incorporating
market trends and their respective business circumstances while allowing forsafety and reliability considerations.

6

Ecology Guideline For the ICT Industry<Image for use as reference>
Company ABC’s Procurement Standard (executed in FYxx)
In procuring materials, we at our company have clearly defined our stance tocontribute to the creation of a sound material-cycle society and have established aprocurement standard to further promote this effort.
1.
2.

Scope of equipment covered: ICT equipment and services
Procurement standard
For equipment listed in the “Ecology Guideline for ICT Industry,” procurement
decisions shall basically be made from among equipment with energy-saving
ranking of n stars or above.
For equipment not listed in the Guideline, the equipment with the lowest
possible electric power consumption shall be procured.

<Image for use as reference>
Company ABC’s Procurement Standard (executed in FYxx)
In procuring materials, we at our company have clearly defined our stance tocontribute to the creation of a sound material-cycle society and have established aprocurement standard to further promote this effort.
Scope of equipment covered, procurement standard
For the following equipment listed in the “Ecology Guideline for ICT Industry,”
procurement decisions shall basically be made from among equipment withenergy-saving ranking stars [ ] or above listed to the right of the Equipment Typebelow. For equipment not listed in the Guideline, the equipment with the lowest
possible electric power consumption shall be procured.
Equipment A: n stars or above
Equipment B: n stars or above[2] Indication of the “Eco ICT Logo”
Check the status of efforts and achievements in reducing CO2 emissions anddisclose those results using an “Eco ICT Logo,” to show that telecommunications
services providers are appropriately engaged in efforts to reduce CO2 emissions.
(2) Vendors[1] Indication of equipment assessment outcome
Vendors wishing to submit their product to the Council as energy-saving
equipment covered by the scope of this Guideline must measure and evaluate the7Ecology Guideline For the ICT Industry

device in accordance to section 5.2 of this Guideline and submit the assessment
outcome (assessment results and assessment scale ranking) to the Council so thatthe information can be publicly disclosed on the Council homepage.
(3) Data center operators[1] Public disclosure of data
In relation to data center services, data center operators shall publicly disclose
data relevant to energy-saving (such as PUE values, with measurement
conditions) which would serve as a reference for procurement bytelecommunications services providers.
3.4 Expected Impact
The relevant equipment and assessment standards indicated in this Guideline
allow for the establishment of categories and assessment standards that can beshared by both vendors and the companies making the procurement, which benefits
both sides to the extent it can eliminate inconsistencies in manufacturing andprocurement. Furthermore, it is expected that as telecommunications services
providers add energy-saving items to their procurement standards and actively
install energy efficient equipment, this, in turn, will promote the development ofenergy efficient ICT equipment.
By formulating an assessment standard with the objective of saving energy, it ishoped that standardization bodies will accelerate deliberations of low
power-consuming technologies (such as technologies to control stand-by power ofaccess equipment).
3.5 Revisions
This guideline will require appropriate response to: changes in policy relating to
global warming measures; the status of ICT service provision; penetration ofequipment and the like; and technological advances. To that end, even after its
establishment, this Guideline shall continue to be studied by the Council and:・ the scope of equipment covered shall be broadened, and・ review of the criteria, such as figure of merit and normative reference shall be
made.
3.6 Notice of Disclaimer
This Guideline shall be used as reference by telecommunications services
providers at their own discretion to determine standards for procuring ICT
equipment or data centers. As for the “Eco ICT Logo,” the telecommunications
services provider shall be responsible for filling out the check list, making theinformation public and using the logo.
The Council shall not be liable for any damages and/or conflicts resulting fromthe use of this Guideline. It is presumed that the user of this Guideline shall be8Ecology Guideline For the ICT Industry

responsible for any incidental or consequential damages and/or conflicts resulting
from the use of this Guideline.

9Ecology Guideline For the ICT Industry

4. Outline of the Guideline
4.1 “Assessment standards” for equipment covered (for details, see 5.2)
(1) Equipment covered in this Guideline and relevant values* An assessment scale is designated for each Equipment Type based on normativereferences (refer to the following table and/or section 5.2).
Equipment
Type

Category

Equipment
nameFiguremerit

Broadbandrouter1(noVPN
function)A

WiredrouterB

VoIP WiredrouterPower
consumption (W)8C

Wirelessrouter (2.4GHz)

0.10×X2+
3.9

Wirelessrouter(5GHz)

0.15×X5+
3.9

Wirelessrouter (2.4
GHz + 5GHz)

0.10×X2+
0.15×X5+
5.1

D

ADSL
router

7.4

E

ADSL
routerVoIP

7.4

Layer-2
switch(box type)2

ofNormativereference

Approximate dateforachievingnormativereference

Notes

4

End
FY2010of

X2: 2.4 GHz wirelessoutput (mW/MHz)
X5: 5 GHz wirelessoutput (mW/MHz)*Figure of merit andnormative reference
shall be compliant
withtoprunnerassessment standards.

End
FY2011of

αn : sum of power
consumption of port
and
fixed
power
consumption
Pn : additional power
consumption of PoE
T: maximum effective
transmission raten: Category (A, B, C,
D)*Figure of merit andnormative reference
shall be compliant

5.5

w

F

wireless
ADSL
routerA

Layer-2
switch(with
SNMPmanageme
nt and IP
filtering
functions)

8.8

Power
consumption (W)/maximum
effective
transmission
rate (Gbps)(αn+Pn)/T

910Ecology Guideline For the ICT Industry

B

C

D

Transport
equipment3

WDM

Layer-2
switch(with
SNMPmanagement
function,w/oIP
filtering
function)
Layer-2
switch(with Webmanagement
function)
Layer-2
switch(w/omanagement
function)
DWDM
deviceCWDM
devicePON
equipment(OLT)4GE-PO
N

OLT (ACpower
source)OLT (DCpower
source)PON
equipment
(ONU)

GE-PO
N

ONU(100M
bps)

ONU(1Gbp
s)

with
top
runnerassessment standards.

Maximumthroughput(Gbps)/avg
power
consumption (W) 10

0.32

Averagepower
consumption(W)/totalnumber oflines11

0.46

Averagepower
consumption (W) 12

3.68

End
FY2012ofAveragepower
consumption=(power consumption
at full wavelength +power consumption at+1 wavelength) / 2*Figure of merit shallbe compliant withATIS referencesEnd
FY2012ofAveragepower
consumption = (P100+ P50 + P0) / 3
Total number of lines= total number of IF
ports X no. of PON
branchesEnd
FY2012ofAveragepower
consumption = (P100+ P50 + P0) / 3

0.48

0.42

4.45

11

Ecology Guideline For the ICT Industry

Broadbandbase
stationequipment5

WiMA
X

WiMAX
base station(integrated
10W device(1 system))∑Pn/{ Pidle×(1-α)+Pmax
×α}13

12.60

12

End
FY2012of

Pn: power transmission
by antenna terminal n(W)
Pidle: primary
supply-side power when
there is no load (W)Pmax: primary
supply-side power at
maximum transmission(W)
α: average daily down
link transmission trafficrate.

Ecology Guideline For the ICT Industry

LTE

Power
supplyequipment6

External
powersourceWiMAXbase station(integrated
10W device(2 systems))

9.63

WiMAX
base station(integrated
5W device(1 system))

5.84

LTE
base
stations(segregated
20W
device)

20.32

LTE
base
stations(integrated
20W
device)

13.77

LTE
base
stations(segregated
10W
device)6.91

AC adapter

Averageconversion
efficiency1462.2+6.26ln(Pno)

13End
FY2013ofEnd
FY2011ofAverage conversion
efficiency＝(η25＋η50＋
η75＋η100)/4
ηn:efficiency
atn%loadPno : nameplate output(W)* Figure of merit shallbe compliant with
globalefficiency
agreements

Ecology Guideline For the ICT Industry

RectifierServerequipment7

A

Singlephase
AC100V
input
rectifier

Averageconversion
efficiency x
1,00015862

Singlephase
AC200V
input
rectifier878

3-phaseAC200/400
V
input
rectifier(output
power<5kW)891

3-phaseAC200/400
V
input
rectifier(output
power≧5k
W)

908

Dedicated
CISC (n<32
I/O slots)<<Figure of
merit
for
activestate>>Overallssj_ops/wa
tt=∑ssj_ops/∑ powerconsumption(W)/1016<<Figure of
merit
for
idle state>>{(W1+W2)/2}/Q

14

April, 2012

TBD

Average conversion
efficiency＝(η30＋η40＋
η50＋η60＋η70＋η80)/6
ηn:efficiency
atn%load* Figure of merit shallbe compliant withATIS specs

The top line of eachcategory indicates active
state normative reference
and approximate date for its
achievement, while thebottomline
indicates
corresponding information
for idle state.
[Figure of merit for active
state]
ssj_ops: processing capacity*Figure of merit shall becompliantwith
SPECpower_ssj®2008[Figure of merit for idle
state]
W1: power consumption inidle state (W)W2: power consumption in
low-power mode (W)Q:
compositetheoryl
performance (unit: giga
calculations)*Figure of merit andnormative reference shall becompliant with top runnerassessment standards.

Ecology Guideline For the ICT Industry

1,950
B

C

D

E

F

Dedicated
CISC (n≧32
I/O slots)
RISC (n<8I/O slots)
RISC(8≦n<40I/O slots)
RISC (40≦n
I/O slots)End
FY2011

2,620

TBD
End
FY2011

of

13

TBD
End
FY2011

of

31

TBD
End
FY2011

of

140

TBD
End
FY2011ofIA64 (n<10I/O slots)

TBD
6.2

G

H

I

J

K

L

Storageequipment(subsystems)17MIA64 (n≧10
I/O slots)

22

IA32 (0 I/O
slots)

IA32(1≦n<7 I/O
slots, n<2CPUsockets)
IA32(1≦n<7 I/O
slots,
2≦n<4 CPUsockets)
IA32(1≦n<7 I/O
slots, n≧4CPUsockets)
IA32 (n≧7
I/O slots)Formainframe
servers18

of

Power
consumption (W)/
Storage
capacity(GB)19End
FY2011TBD
End
FY2011

of

of

1,000

End
FY2010

of

1.3

End
FY2011

of

1,000

End
FY2010

of

1.2

End
FY2011

of

1,000

End
FY2010

of

1.9

End
FY2011

of

6.7

TBD
End
FY2011

of

7.4

TBD
End
FY2011of

E=exp(1.85 x In(N) - 18.8)

End
FY2011

of

N:
no.
of
steadyrevolutions(unit:
revolutions per minute)*Figure of merit andnormativereferenceshall be compliant with
top runner assessment

standards.

15

Ecology Guideline For the ICT Industry

N

For
use
other thanmainframe
servers

E=exp(1.56 x In(N) - 17.7)

1 Broadband router

Routers which relay data using International Organization for Standardization (ISO) OSI (Open
System Interconnection) layer 3 (network layer) using IP addresses included in the destination
information of packets, and with an effective transmission rate of no more than 200 Mbps (no morethan 100 Mbps for wireless routers).
2 Layer 2 (L2) switch
Equipment which relays data on the network using International Organization for Standardization(ISO) OSI (Open System Interconnection) layer 2 (data link layer).
3 Transport equipment
Equipment whose main task is to relay data on the network using International Organization forStandardization (ISO) OSI (Open System Interconnection) layer 1 (physical layer). This category
includes WDM equipment, electric multiplexers and FC switches.
4 PON equipment
A name for a category of optical access devices for building PON (Passive Optical Network)
systems, including GE-PON, G-PON and 10GE-PON equipment
5 Broadband base station equipment
A generic term for a category of radio base station equipment such as WiMAX base station or LTE
base station equipment.
6 Power supply equipment
A device which provides electric power to the equipment and is physically separate andindependent of the equipment.
7 Server
A computer device comprising of a central processing unit (CPU), a main memory, an input/output
control and a power source. It exists as part of a network to provide information and services toother computer devices. It is designed to use an operating system (OS) so that it can be installedwith and run user applications.
8 The power consumed at maximum effective transmission rate. The smaller the number, the greater
the energy efficiency.
9 The power consumed at maximum effective transmission rate. The smaller the number, the greater
the energy efficiency.
10 Maximum throughput at average power consumption (average power consumption of full wave
length and 1 wave length). The greater the number, the greater the energy efficiency.
11 Average power consumption (average power consumption at loads of 100%, 50% and 0%) per line.
The smaller the number, the greater the energy efficiency.
12 Average power consumption (average power consumption at loads of 100%, 50% and 0%). The
smaller the number, the greater the energy efficiency.
13 Transmission power (total per antenna) at average input power (average input power at loads of
100% and 0% when applying daily traffic rates). The greater the number, the greater the energy
efficiency.
14 Average conversion efficiency at loads of 100%, 75%, 50% and 25%. The greater the number, thegreater the energy efficiency.
15 Average conversion efficiency at loads of 80%, 70%, 60%, 50%, 40% and 30%. The greater thenumber, the greater the energy efficiency.
16 Total power consumption at CPU loads of 0 through 100% vs. total processing capacity. The greater
the number, the greater the energy efficiency.
17 A subsystem refers to 1 unit containing multiple disk drives, magnetic disk control unit, andmagnetic disk device (for machines using only the magnetic disk control unit within the computer,1 unit refers to a chassis with an assigned model number/name).

16Ecology Guideline For the ICT Industry
18 “Mainframe servers” refers to server-type computers (computers designed to provide services via

networks) with dedicated CISC (of CPUs designed to implement multiple commands of differing
bit counts, those designed for individual computers) and the subsystem connected to the server isreferred to as mainframe server use.
19 Power consumption per 1GB. The smaller the number, the greater the energy efficiency.

(2) Assessment scale for relevant equipment[1] Broadband router (no VPN function)
Figure of merit: Energy efficiency ratio En=power consumption (W)NR=normative reference
Assessment
scale

Rate of reduction vs.
power consumption
at NR

Energy efficiency ratio per
category
En （W）
A
B
C
D
E
F

★★★★★

n≧30%

En≦E×0.7★★★★

20%≦n＜30%

E×0.7<En≦E×0.8★★★
★★

10%≦n＜20%

E×0.8<En≦E×0.90%≦n＜10%

E×0.9<En≦E(Normative reference
not achieved)

En>E（includes NR）

★

Notes
Normative reference E (W)per table under 5.2.1.1 (3)Normative References[2] Layer-2 switch (box type)Figure of merit: Energy efficiency ratio En=energy consumption (W)/maximum effective transmission rate (Gbps)
NR=normative reference
Assessment
scale

Rate of reduction
vs. power
consumption at NR

Energy efficiency ratio per category
En （W）
A
B
C
D

★★★★★

n≧30%

En≦E×0.7★★★★

20%≦n＜30%

E×0.7<En≦E×0.8★★★

10%≦n＜20%

E×0.8<En≦E×0.90%≦n＜10%

E×0.9<En≦E(Normativereference notachieved)

En>E★★
（includes NR）

★

Notes
Normative Reference
E (W/Gbps) per table
under
5.2.2.1(3)
Normative References

Note: Rate of reduction of power consumption vs. NR shall be comparable for
equipment with similar maximum effective transmission rates.

[3] WDM
Figure of merit: TEER= maximum throughput (Gbps)/ average power
consumption (W)NR=normative reference
Assessment
scale

Rate of reduction vs.
power consumption at

Average power
consumption for

17

Average power
consumption forEcology Guideline For the ICT Industry

NR

800GbpsDWDM

40GbpsCWDM

★★★★★

n≧30%

P≦1,750

P≦58.4★★★★

20%≦n＜30%

1,750＜P≦2,00058.4＜P≦66.7★★★

10%≦n＜20%

2,000＜P≦2,250

66.7＜P≦75.0

2,250＜P≦2,500

75.0＜P≦83.3

P＞2500P＞83.3★★
（includes NR）

0%≦n＜10%(Normative reference
not achieved)★

Note: TEER (Telecommunications Energy Efficiency Ratio)[4] GE-PON
OLT figure of merit: E= average energy consumption (W)/ total no. of lines
ONU figure of merit: P= average energy consumption (W)NR=normative reference
Assessment
scale

Rate of reduction vs.
power consumption
at NR

Average power
consumption for OLT(AC power source) (W)Average power
consumption for OLT(DC power source) (W)

★★★★★

n≧30%

E≦0.322E≦0.294★★★★

20%≦n＜30%

0.322＜E≦0.368

0.294＜E≦0.336★★★
★★

10%≦n＜20%

0.368＜E≦0.414

0.336＜E≦0.378

0%≦n＜10%0.414＜E≦0.46

0.378＜E≦0.42★

(Normative reference
not achieved)

E＞0.46

E＞0.42

Assessment
scale

Rate of reduction vs.
power consumption
at NR

Average power
consumption for ONU(100 Mbps)

Average power
consumption for ONU (1
Gbps)

★★★★★

n≧30%

P≦2.576P≦3.115★★★★

20%≦n＜30%

2.576＜P≦2.944

3.115＜P≦3.56★★★
★★

10%≦n＜20%2.944＜P≦3.312

3.56＜P≦4.005

0%≦n＜10%

3.312＜P≦3.68

4.005＜P≦4.45(Normative reference
not achieved)

P＞3.68P＞4.45（includes NR）（includes NR）★

[5] WiMax base station equipment
Figure of merit: E= total transmission power (W)/average primary input
power (W)
Assessment
scale

Rate of reduction
vs. power
consumption at NR

Reference average power
consumption (W) for
integrated 10W
equipment (single)(Note 1)

Reference average power
consumption (W) for
integrated 10W
equipment (dual)(Note 1)

★★★★★

n≧30%

P≦111.09

P≦145.39

18

Ecology Guideline For the ICT Industry★★★★

20%≦n＜30%

111.09＜P≦126.96

145.39＜P≦166.16★★★
★★

10%≦n＜20%

126.96＜P≦142.83

166.16＜P≦186.93

0%≦n＜10%142.83＜P≦158.7

186.93＜P≦207.7(Normativereference notachieved)

P＞158.7

P＞207.7（includes NR）★

Assessment
scale

Rate of reduction
vs. power
consumption at NR

Reference average power
consumption (W) for
integrated 5W equipment(single) (W) (Note 2)

★★★★★

n≧30%

P≦119.86★★★★

20%≦n＜30%

119.86＜P≦136.99★★★
★★

10%≦n＜20%

136.99＜P≦154.11

0%≦n＜10%154.11＜P≦171.2(Normativereference notachieved)

P＞171.2（includes NR）

★

Notes
1: When transmission output is 10.0 W X 2
2: When transmission output is 5.0 W X 2[6] LTE Base Station Equipment
Figure of merit: E=total transmission output (W)/average primary input
power
Assessment
scale

Rate of reduction
vs. power
consumption at NR

Average power
consumption normativereference (W) forsegregated 20W
equipment (Note 1)

Average power
consumption normativereference (W) for
integrated 20W
equipment (Note 1)

★★★★★

n≧30%

P≦413.38

P≦610.02★★★★

20%≦n＜30%

413.38<P≦472.44

610.02<P≦697.16★★★
★★

10%≦n＜20%472.44<P≦531.49

697.16<P≦784.31（includesNR）0%≦n＜10%531.49<P≦590.55

784.31<P≦871.46

Normativereference notachieved

P>590.55

P>871.46

Assessment
scale

Rate of reduction
vs. power
consumption at NR

Average power
consumption normativereference (W) forsegregated 10W
equipment (Note 2)

★★★★★

n≧30%

P≦607.81★

19

Ecology Guideline For the ICT Industry★★★★

20%≦n＜30%

607.81<P≦694.64★★★
★★

10%≦n＜20%694.64<P≦781.47（includesNR）0%≦n＜10%781.47<P≦868.31

Normativereference notachieved★

P>868.31

Notes
1: When transmission output is 20 W × 2
2: When transmission output is 10 W × 2[7] External Power Source
Figure of merit: Average conversion efficiencyη=(η25＋η50＋η75＋η100)/4
Pno : nameplate output (W)Assessment
scale

Rate of reduction
vs. power
consumption at NR

★★★★★

n≧30%

★★★★

20%≦n＜30%

67.7＋5.46ln（Pno）≦η＜70.7＋5.00ln（Pno）★★★
★★

10%≦n＜20%64.8＋5.88ln（Pno）≦η＜67.7＋5.46ln（Pno）

0%≦n＜10%62.2＋6.26ln（Pno）≦η＜64.8＋5.88ln（Pno）(Normativereference notachieved)

η＜62.2＋6.26ln（Pno）（includes NR）★

Average conversion efficiency η（See formula （＊））η≧70.7＋5.00ln（Pno）(Note) Pno: Nameplate output power (W)[8] Rectifier
Figure of merit: TEER=(η30＋η40＋η50＋η60＋η70＋η80)/6 x 1,000
Single-phase AC100V input rectifier
Assessment scale

Rate of reduction vs. power
consumption at NR

Figure of merit（TEER）

★★★★★

n≧45%

TEER≧919★★★★

30%≦n＜45%900≦TEER＜919★★★

15%≦n＜30%881≦TEER＜9000%≦n＜15%862≦TEER＜881

Normative reference not achieved

TEER＜862★★
（includes NR）★

Single-phase AC200V input rectifier
Assessment scale

Rate of reduction vs. power
consumption at NR

Figure of merit（TEER）

★★★★★

n≧45%

TEER≧929★★★★

30%≦n＜45%911≦TEER＜929

20

Ecology Guideline For the ICT Industry

15%≦n＜30%894≦TEER＜9110%≦n＜15%878≦TEER＜894

Normative reference not achieved

TEER＜878★★★
★★
（includes NR）★

Three-phase AC200V/400V input rectifier (output power capacity of less than
5kW)
Rate of reduction vs. power

Assessment Scaleconsumption at NR

Figure of Merit（TEER）

★★★★★

n≧30%

TEER≧921★★★★

20%≦n＜30%

911≦TEER＜921★★★

10%≦n＜20%901≦TEER＜9110%≦n＜10%891≦TEER＜901

Normative reference not achieved

TEER＜891★★
（includes NR）★

Three-phase AC200V/400V input rectifier (output power capacity of 5kW or
more)
Rate of reduction vs. power

Assessment scaleconsumption at NR

Figure of merit（TEER）

★★★★★

n≧30%

TEER≧934★★★★

20%≦n＜30%925≦TEER＜934★★★

10%≦n＜20%916≦TEER＜9250%≦n＜10%908≦TEER＜916

Normative reference not achieved

TEER＜908★★
（includes NR）★

[9] Servers<< Assessment standard for active state>>
Figure of merit: E = overall ssj_ops/watt= ∑ssj_ops/∑power consumption (W)Assessment
scale

Rate of reduction vs.
power consumption
at NR

★★★★★

Energy efficiency ratio E per category

H, I, JA – G, K, L

n≧60%

E≧2,500

TBD★★★★

40%≦n＜60%

1,666≦E＜2,500★★★

20%≦n＜40%

1,250≦E＜1,666★★
（includesNR）★

0%≦n＜20%(Normativereference notachieved)

1,000≦E＜1,250

E＜100021

Ecology Guideline For the ICT Industry(Note): Comparison of the rate of reduction against power consumption at
normative reference among equipment with similar processing capacity(∑ssj_ops value).
(Note): TBD= To be determined<< Assessment standard for idle state>>
Figure of merit: Energy efficiency ratio En=power consumption (W)/Composite
theory performance (GTOPS)
Assessment
Scale

★★★★★
★★★★
★★★
★★
（includes NR）

Rate of reduction
vs. power
consumption at NR

Energy efficiency ratio per category
En (W/GTOPS)n≧60%

En≦E×0.440%≦n＜60%

E×0.4<En≦E×0.6

20%≦n＜40%

E×0.6<En≦E×0.8

0%≦n＜20%

All categories （Ａ-Ｌ）

E×0.8<En≦E

Normativereference notachieved

★

Notes

E<En

See Normative
References
Table 5.2.7.1 (7)for E(W/GTOPS)
Normative
References[10] Storage Equipment
Figure of merit:
Energy efficiency ratio En= power consumption (W)/storage capacity (GB)Assessment
Scale

Rate of reduction
vs. power
consumption at NR

Energy consumption
efficiency En

★★★★★

n≧60%

En≦E×0.4★★★★

40%≦n＜60%

E×0.4<En≦E×0.6★★★
★★

20%≦n＜40%

E×0.6<En≦E×0.8

0%≦n＜20%

E×0.8<En≦E

Normativereference notachieved

E<En（includes NR）

★

22

Notes
Normative references
E (W/GB) are basedon the table under
5.2.8.1 (3) Normative
References.

Ecology Guideline For the ICT Industry

4.2 Effort and Assessment Criteria for the “Eco ICT Logo”(for details, see 7.2)
<Mandatory items>
Type of effort
Preparation ofavoluntary
ecologicalaction plan

Assessment criteria
Has a voluntary ecological action plan stipulating
1 various efforts directed at reducing CO2 emissions
been created and is it being executed?
Does the ecological policy include specific efforts
2 stipulating numerical targets for the reduction of CO2
emissions?
Is the ecological policy documented and disseminatedinside and outside of the company? Does the company
3 carry out activities to inform and enlighten its
employees? Is the company working to raise ecologicalawareness?
Does the company disclose the individual activities
listed in its voluntary ecological action plan along with4
implementation and achievement status to the generalpublic?
Efforts
In regard to ICT equipment and data center services,
relating
tohas the company prepared a procurement standard
procurement
5 that takes energy conservation into consideration? Is
procurement carried out in accordance to thestandard?
Is the company cognizant of energy conservation in
6 procuring office equipment, supplies and logistics(e.g., green purchasing)?
Promotion
In relation to efforts to reduce CO2 emissions, has theregime7 company assigned a person or department responsible
for such matters?
Is there a regime in place using internal audits or othermeans to keep appropriate track of the implementation
8of measures and achievement of targets set forth in thevoluntary ecological action plan?
<Recommended items>
Other
Are ecologically-friendly efforts being made other than9
ecologicalactivities to save energy?
activities
Is the company involved in ecological preservation10
activities in collaboration with local communities?

23

Ecology Guideline For the ICT Industry

4.3 Image of Guideline Implementation(1) Flow leading to public disclosure of assessment results by vendors and data
center operators as well as how procurement by telecommunications services
providers would proceed.

STEP 1: Assessment results shall be provided to telecommunications services
providers, Council member companies, government offices, universities andresearch organizations.
STEP 2: Assessment results shall be made available to the general public.
(2) Flow of public disclosure of checklist and use of the “Eco ICT Logo” bytelecommunications services providers.

Use of the “Eco ICT Logo” shall be limited to the following:> Telecommunications services providers.
> A person who operates a telecommunications business defined under the
Telecommunications Business Act, other than Telecommunications services
providers.
> Neither of the above, but operating business related to telecommunications
services using substantial ICT equipment AND recognized by the Council.

24

Ecology Guideline For the ICT Industry

5. Assessment Standards
5.1 Assessment standards
5.1.1 Scope
The scope of ICT equipment covered in this Guideline shall be equipment usedmainly by telecommunications services providers to provide their services,
covering network equipment, power equipment, server equipment and storage
equipment. The addition and/or elimination of equipment categorization andmore detailed sub-categorizations shall be reviewed as deemed appropriate.
【Network equipment】
Equipment categorization
Upper-layer equipment
Large-sized routers
Broadband routers（withVNP functions）
Broadband routers（without VNP
functions）

Category
TBD
TBD
TBD

Equipment covered
TBD
TBD
TBD

Notes

A（WAN：Ether、
LAN：Ether）
B（WAN：Ether、
LAN：VoIP）
C（WAN：Ether、LAN：wireless）
D（WAN：ADSL、
LAN：Ether）
E（WAN：ADSL、
LAN：VoIP）
F（WAN：ADSL、
LAN：wireless）
TBD

Wired router

Equipment
classifications
and subcategories
shall bealigned with
top runnerassessment
standard

Layer-2 switch（chassis-type）
Layer-2 switch（box-type） A（with SNMP
management and IP
filtering functions）
B（with SNMP
management, w/o IP
filtering functions）
C（With web or othermanagement
functions）
D（withoutmanagement
functions）
Transport equipment
WDM equipment

Wired routers with
VoIP
Wireless routers
ADSL routers
ADSL routers with
VoIP
Wireless ADSL
routers
TBD
Layer-2 switch

Layer-2 switch

Layer-2 switch

Layer-2 switch

DWDM equipment

CWDM equipment
25

Equipment
classifications
and subcategories
shall bealigned with
top runnerassessment
standard

Equipment
categorizations
shall
bealigned with
ATIS
EquipmentEcology Guideline For the ICT Industry

categorizations
shall
bealigned withATIS
PON equipment

GE-PON

Broadband base stationequipment

WiMAX

OLT
ONU
WiMAX basestations
LTE base stations

LTE【Power equipment】
Equipment categorization
Power equipment

Category
External powersourceRectifierequipment
UPS

Equipment name
AC adapter

Notes
Excludesrechargers

Rectifier equipment
TBD【Server equipment】
Equipment categorization
Server equipment

Category

Equipment nameA

Dedicated CISC
(n<32 I/O slots)
Dedicated CISC (n≧32 I/O slots)
RISC (n<8 I/O slots)
RISC (8≦n<40 I/O
slots)
RISC (40≦n I/O
slots)
IA64 (n<10 I/O slots)
IA64 (n≧10 I/O
slots)
IA32 (0 I/O slots)
IA32 (1≦n<7 I/O
slots, n<2 CPUsockets)
IA32 (1≦n<7 I/O
slots, 2≦n<4 CPU
sockets)
IA32 (1≦n<7 I/O
slots, n≧4 CPU
sockets)
IA32 (n≧7 I/O slots)

B
C
D
E
F
G
H
I

J

K

L

Notes
Equipment
sub-categorizaties
shall be aligned with
top runnerassessment standard【Storage equipment】
Equipment categorization
Storage equipment(subsystems)

Category

Equipment covered

Notes

M

For mainframe
servers
For use other thanmainframe servers

Equipment
categorization andsub-categorizaties
shall be alignedwith top runnerN

26

Ecology Guideline For the ICT Industry

assessment
standard

Note: TBD=To be determined
5.1.2 Stance on other assessment standards
In regard to specific assessment standards for the equipment subject to thisGuideline, in cases where appropriate standards covering practices bytelecommunications services providers already existed, those existing standards
were adopted. For equipment with no existing assessment standards, assessment
standards for similar equipment were used as reference.

27

Ecology Guideline For the ICT Industry

5.2 Equipment Definitions, Figures of Merit, Normative References andMeasurement Methods
5.2.1 Routers5.2.1.1. Broadband router(1) Equipment Definition
Among routers which relay data on ISO’s OSI (Open System Interconnection)
layer 3 (network layer) using IP addresses included in the destination
information of packets, routers with an effective transmission rate of no morethan 200 Mbps (no more than 100 Mbps for wireless routers) and: having no VPN (Virtual Private Network) functions; and having no more than two phone lines if equipped with VoIP (Voice over
Internet Protocol) functions.
The following is the definition of effective transmission rate.
Non-wireless: the sum of maximum down link and up link transmission rates(bps) including overhead (control information)
Wireless: down link transmission rate (bps) including overhead (control
information)
Broadband routers as defined by the Energy Conservation Law
Equipment Definition of Energy Conservation Law
Equipment for sending and receiving electronic telecommunication signals having the functionof transmitting electronic telecommunication signals to a path determined to be the mostappropriate depending on the state of each path etc. from among available paths to reach thedestination equipment (limited to those used almost exclusively for the Internet; when having acommunication terminal equipment connect to the Internet through a phone line, excluding
those used to connect to the Internet by calling an Internet service provider to have the said
communication terminal equipment connect to the Internet, and others set forth under
Ministerial Ordinance Number 39 from the Ministry of Economy, Trade and Industry *1).
*1: Exclusions provided under Ministerial Ordinance Number 39 from the Ministry of Economy,
Trade and Industry are as follows.
[1] Those that do not transmit/exchange Internet protocol packets[2] In transmitting Internet protocol packets, those with the maximum value of the sum of thenumber of signal bits of the said packets exceeding 200Mbps/s (excluding those specified in6))(Those having an effective transmission rate exceeding 200Mbit/s)[3] Those that do not allow asynchronous transfer mode equipment to be easily removed.
[4] Those having the function of impressing high-frequency current of 10kHz or higher.
[5] Those having at least three of those used for sending and receiving sound among connection
ports for sending and receiving electric telecommunications signals (excluding those using
Internet protocol)[6] In transmitting Internet protocol packets wirelessly, those with the maximum value of thesum of the number of signal bits of the said packets exceeding 100Mbit/s[7] Those having the function to use satellites[8] Those having the function of transmitting 53 or more subcarrier frequencies by using
orthogonal frequency division multiplexing method.
[9] Those having the function of setting a Virtual Private Network.
[10] Those designed to be built into an electronic computer or other item.

28

Ecology Guideline For the ICT Industry(2) Figure of Merit
Adopt the assessment standard based on the top runner method (2009Ministerial Notification No. 226 from the Ministry of Economy, Trade andIndustry) for routing equipment specified in the Energy Conservation Law.
Specific figures of merit are as follows.
Energy efficiency ratio E = Power consumption P (W)(3) Normative References[1] Method for determining normative references
Adopt the assessment standard based on the top runner method for routing
equipment specified in the Energy Conservation Law.
[Normative References]
Specific normative references are as follows.
Type ofinterface on
WAN side
Ethernet
only

ADSL only

Category
Type ofCategory
Energy efficiency ratio E（W）
interface on
nameLAN side
Ethernet onlyA
4.0
Ethernet with
B
5.5
VoIP
Ethernet withC
When transmitting on wireless 2.4GHz
wirelessband only:
function
E = 0.10×X2＋3.9
When transmitting on wireless 5 GHzband only:
E＝0.15×X5＋3.9
When transmitting the two frequencies
mentioned above simultaneously:
E＝0.10×X2＋0.15×X5＋5.1
Ethernet onlyD
7.4
Ethernet with
E
7.4
VoIP
Ethernet withF
8.8
wirelessfunction

Notes
1: “WAN side” refers to the side of the port connected to a network such as theInternet. “LAN side” refers to the side of the port connected to other equipment.
2: E, X2 and X5 represent the following values:
E: Reference energy efficiency ratio (unit: W)
X2: 2.4 GHz wireless output (unit: mW/MHz)
X5: 5 GHz wireless output (unit: mW/MHz)
3: In Category C, for equipment capable of transmission by selecting 2.4 or 5 GHz
wireless band, use the calculation formula for the frequency band with a higher
effective transmission rate in (4) Measurement Methodology to calculate the value
29

Ecology Guideline For the ICT Industry

for the reference energy efficiency ratio.

[Approximate Date for Achieving Normative References]
The end of Fiscal Year 2010 [adopted the target fiscal year per the reference on
routing equipment (2009 Ministerial Notification No. 226 from the Ministry of
Economy, Trade and Industry), specified in the Energy Conservation Law]
[2] Assessment scale references
The rate of reduction versus the normative reference shall determine thethreshold. In the assessment scale, the rank covering the normative reference
shall be ★★.

Assessment
scale

Rate ofreduction vs.
power
consumption
at NR

Energy efficiency ratio per
category En （W）
A

B

C

D

E

★★★★★

n≧30%

En≦E×0.7★★★★

20%≦n＜30%

E×0.7<En≦E×0.8★★★

10%≦n＜20%

E×0.8<En≦E×0.9★★
（includes NR）

0%≦n＜10%

E×0.9<En≦E

F

Notes
NR E (W) per table under(3)[1]
Normative
References(Normative
En>E
reference notachieved)(Note) In calculating energy efficiency ratio, calculate values to the first decimal place.
★

(4) Measurement Methodology
Measurement methods are as follows and coincide with those set forth underthe 2009 Ministerial Notification Number 226 from the Ministry of Economy,
Trade and Industry, which sets forth, among other things, assessment standards
for vendors in relation to the stipulations of the Energy Conservation Law forrouting equipment.
[1] To measure energy efficiency, measure power consumption at maximum
effective transmission rate. Conditions for measuring power consumption
and maximum effective transmission rate are as follows.
(a) The maximum value of the sum of the number of packets per second
output to the WAN side and the number of packets per second output tothe LAN side.
(b) A 1,500 byte packet shall be transmitted for measurement. However, if
the transmission of a 1,500 byte packet is not possible, use the maximum
packet length.
(c) Use IP packets for unicast transmission.
(d) The data pattern of the header section is arbitrary. Use 0 for all data30

Ecology Guideline For the ICT Industry

patterns of the packet to be measured.
(e) When measuring power consumption, it shall be acceptable to transmit
the minimum packets suited to the maximum effective transmission rateof the router.
(f) Enable routing of packets received by the router. Routing is the relay ofdata to a destination determined by the IP address on a network using
the layer 3 (network layer) of a model indicated in the Basic Reference
Model 6 of Open Systems Interconnection stipulated in Japan Industrial
Standard X5003. Upon performing the relay, the TTL value, which is theheader information associated with an IP address, shall be deducted andrelayed to a different data link.
(g) Removable components and functions that can be disabled without
sacrificing the basic performance and functioning of the router shall be
removed or disabled, respectively, for the measurement.
(h) Ports not involved in the measurement can be linked down.
(i) The peripheral temperature shall fall within the range of 16 to 32°C.
However, for wireless routers the range shall be 0 to 40°C.
(j) Power voltage shall be within the range of ±10% of rated input voltage(100V or 200V).
(k) Use rated frequency for AC power source frequency.
(l) Conduct measurements with the router in a stationary state.
(m) For products using an AC power source, measure power consumption at
the power plug.
(n) In the case of AC power, use effective power as power consumption.
[2] Use the following conditions for routers with wireless capacity(a) Wireless transmission direction shall be from the WAN side to the LAN
side.
(b) If there are multiple wireless LAN interfaces capable of operating
simultaneously, operate them simultaneously.
(c) Use a configuration that disables functions such as data compression andoutput power adjustment.
(d) Use maximum link speed of the router.
(e) Take measurements on the tested equipment using packet generators.
(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.1.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
31

Ecology Guideline For the ICT Industry

Values specified in 2009 Ministerial Notification No. 226 from the Ministryof Economy, Trade and Industry (2010 METI Notification No. 149 revised
version) shall apply.
The specific range of permissible variance in assessment results shall be
x/115 of the energy efficiency ratio of individual equipment, where x is afigure of 100 or more.
As indicated in the diagram below, this means that where the assessment
result of the individual equipment is 100, the measurement value of theenergy efficiency ratio (energy consumption (W)) cannot exceed 115.
In other words, the range of permissible variance of the indicated value is+15% or less.
Maximum limit of measurement value （115）
Range

of

permissible

Indicated value（100）variance in energy
efficiency ratio

5.2.2 Switching Equipment
5.2.2.1. Layer 2 (L2) Switches (box type)(1) Equipment Definition
Among equipment which relays data on the network using ISO’s OSI (Open
System Interconnection) layer 2 (data link layer), box type equipment using the
MAC address included in the destination information of the packet and has threeor more communication ports.

32

Ecology Guideline For the ICT Industry

Equipment Definition in Energy Conservation Law
Equipment for sending and receiving electronic telecommunication signals having the functionof transmitting electronic telecommunication signals to a path determined separately for each
destination from among two or more paths capable of transmission (limited to those used almost
exclusively for the Internet; however excluding those capable of wireless telecommunication andothers set forth under Ministerial Ordinance Number 39 from the Ministry of Economy, Tradeand Industry*1).
*1: Exclusions provided under Article 48 (21) of Ministerial Ordinance Number 39 from the
Ministry of Economy, Trade and Industry (exclusions from specified equipment) are as
follows.
[1] Those that do not transmit and switch Ethernet frames[2] Those that transmit and switch Internet protocol packets[3] Those with connection ports for sending and receiving electric telecommunications signals
having at least half of the connection ports utilize a two line connection[4] Those designed to be built into a housing, electronic computer or other item.
[5] Those for controlling equipment that relay electrical telecommunications signal wirelessly[6] Those set forth by the Minister of Economy Trade and Industry that are primarily forsupplying power.

(2) Figure of merit
Adopt the assessment standard based on the top runner method for switchingequipment (2009 Ministerial Notification No. 227 from the Ministry of Economy,
Trade and Industry), identified as a specified equipment in the Energy
Conservation Law.
Energy efficiency E = power consumption/maximum effective transmission
rate (W /Gbps)(3) Normative References[1] Method for determining normative references
Adopt the assessment standard based on the top runner method forswitching equipment, identified as specified equipment in the Energy
Conservation Law.
[Normative References]
Specific normative references are as follows.
However, the normative references do not apply to models with Pd/PSA,
Pd/PSB, Pd/PSC or Pd/PSＤ in excess of 16, per the following.
Management
functionsWithmanagement
functionsCategory
Type of management
functionsWith SNMP functions

IP filteringfunctionsCategory
nameWith IP filteringfunctions
No IP filteringfunctionsA

Normative Reference:
Standard energy
efficiency ratio(W/Gbps)
E＝（αA＋PA）/T

B

E＝（αB＋PB）/T

C

E＝（αC＋PC）/T

With Webmanagement andother management33

Ecology Guideline For the ICT Industry

functionsNomanagement
functionsD

E＝（αD＋PD）/T

Notes
1: “Management functions” refers to functions for a network manager to acquire suchinformation as network components and communications status for the purpose ofoperating the network efficiently.
2: Values for αA, αB, αC and αD shall be calculated using the following formula.
αA＝0.578 × Ｘ1 ＋ 1.88 × Ｘ2 ＋ 15.9 × Ｘ3＋βA
αB＝0.375 × Ｘ1 ＋ 1.88 × Ｘ2 ＋ βB
αC＝0.375 × Ｘ1 ＋ 1.133 × Ｘ2 ＋ βC
αD＝0.272 × Ｘ1 ＋ 1.133 × Ｘ2 ＋ βD
The value for αA, αB, αC or αD shall be 3 in cases where the equipment has only a 100
Mbps port, or where the equipment has a 100 Mbps port and a 1 Gbps port and thevalue for αA, αB, αC and αD is less than 3. Furthermore, the value for αA, αB, αC or αDshall be 4.5 in the event the equipment has only a 1Gbps port and the value for αA,αB, αC or αD is less than 4.5.
3: The value for X1 is the number of ports (unit: number of ports) with a line speed of
100 Mbps. The value for X2 is the number of ports (unit: number of ports) with a line
speed of 1 Gbps. The value for X3 is the number of ports (unit: number of ports)
with a line speed of 10 Gbps.
4: Use the values provided in the following table for βA, βB, βC and βD based on theappropriate categorization.
区分
Has only a 100Mbps port
Has only a １Gbps port
Has only a 10Gbps port
Has a 100Mbps port and one 1 Gbps port
Has a 100Mbps port and two or more 1
Gbps ports
Has a １Gbps port and a 10Gbps port

5:

6:

7:
8:

βA
3.976
9.94
0
2.276
0.576

βB
3.4
－5.07
0
1.7
0

βC
3.4
－2.074
0
2.447
1.494

βD
0.824
－2.074
0
1.494
1.494

-10.2400

0

The values for PA, PB, PC and PD shall be calculated using the following formula.
PA＝（0.0347×Pd/PSA）／（１－0.0347×Pd/PSA）×αA
PB＝（0.0347×Pd/PSB）／（１－0.0347×Pd/PSB）×αB
PC＝（0.0347×Pd/PSC）／（１－0.0347×Pd/PSC）×αC
PD＝（0.0347×Pd/PSD）／（１－0.0347×Pd/PSD）×αD
The values for PSA, PSB, PSC and PSD shall be calculated using the following formula.
PSA＝αA×0.85＋１
PSB＝αB×0.85＋１
PSC＝αC×0.85＋１
PSD＝αD×0.85＋１
Pd represents the value for maximum power supply (unit: W) for power over
Ethernet. If the equipment has no power over Ethernet function, use 0.
T represents the value for maximum effective transmission rate (unit: Gbps) when
the frame length is 1,518 bytes.

[Approximate Date for Achieving Normative References]
End of Fiscal Year 2011 (adopted the target fiscal year per the standard on
switching equipment (2009 Ministerial Notification No. 227 from the Ministry of34

Ecology Guideline For the ICT Industry

Economy, Trade and Industry), specified in the Energy Conservation Law)
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference (Note 1). In assessment scale, the rank including
normative reference shall be ★★.
(Note 1) Rate of reduction of power consumption vs. NR shall be comparable
for equipment with similar maximum effective transmission rates.
Rate of reduction
vs. power
consumption at
NR

Energy efficiency ratio per category
En （W/Gbps）

★★★★★

n≧30%

En≦E×0.7★★★★

20%≦n＜30%

Ex0.7<En≦E×0.8★★★

10%≦n＜20%

Ex0.8<En≦E×0.9★★
（includes NR）

0%≦n＜10%

E×0.9<En≦E

Assessment
scale

A

B

C

D

Notes
Normative Reference
E (W/Gbps) per table
under (3) Normative
References(Normativereference not
En>Eachieved)(Note) In calculating energy efficiency ratio, calculate values to the first decimal place.
★

(4) Measurement Methodology
Measurement conditions are as follows taking into account the substance of the2009 Ministerial Notification Number 227 from the Ministry of Economy, Tradeand Industry, which sets forth judgment standards, among other things, formanufacturers of switching equipment per the stipulations of the Energy
Conservation Law.
[1] For energy efficiency, use the value resulting from dividing the value
expressed in W, representing power consumption during maximum
effective transmission rate when the frame length to be measured is 1,518
bytes, by a value expressed in Gbps, representing the aforementioned
effective transmission rate.
[2] Conditions for measuring power consumption and maximum effective
transmission rate are as follows.
(a) The value for maximum effective transmission rate is calculated using
the following formula.
T = R × (L+20) × 8/109
In this formula, T, R and L represent the following values.
T: Maximum effective transmission rate when the frame length is 1,518
bytes
35

Ecology Guideline For the ICT Industry

R: The total number of frame output per second from all ports
L: Frame length (unit: bytes)(b) Set switch so as to perform switching of received frames. Switching is therelay of data on a network using layer 2 (data link layer) of a reference
model indicated in Basic Reference Model 6 of Open Systems
Interconnection stipulated in Japan Industrial Standard X5003.
Specifically, relay is performed referring to the MAC address.
(c) Use frames for unicast transmission.
(d) The data pattern of the header section is arbitrary. Use 0 for all data
patterns of the frame to be measured.
(e) Measurement dependent on type of cascade connection at the ports are
permissible. In such cases, calculate maximum effective transmission rateconsidering the number of cascade-connected ports.
(f) When measuring energy efficiency ratio, it is acceptable to transmit theminimum frames required according to the maximum effective
transmission rate of the switch.
(g) Components that can be removed and functions that can be disabled
without sacrificing the basic performance and functioning of the switch
shall be removed or disabled, respectively, for the measurement.
(h) Ports not used in the measurement can be linked down.
(i) The peripheral temperature shall fall within the range of 16 to 32°C.
(j) Power voltage shall be within the range of ±10% of rated input voltage(100V or 200V) if the power source is AC and within the range of DC-57V
to DC-40.5V if the power source is DC.
(k) Use rated frequency for AC power source frequency.
(l) Conduct measurements with the switch in a stationary state.
(m) For products using an AC power source, measure power consumption at
the power plug terminal.
(n) In the case of AC power, use effective power as power consumption.
(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.2.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Values specified in 2009 Ministerial Notification No. 226 from the Ministryof Economy, Trade and Industry (2010 METI Notification No. 149 revised
version) shall apply.
The specific range of permissible variance in assessment results shall be
x/115 of the energy efficiency ratio of individual equipment, where x is a36

Ecology Guideline For the ICT Industry

figure of 100 or more.
As indicated in the diagram below, this means that where the assessment
result of the individual equipment is 100, the measurement value of theenergy efficiency ratio (energy consumption (W)) cannot exceed 115.
In other words, the range of permissible variance of the indicated value is+15% or less.
Maximum limit of measurement value （115）
Range

of

permissible

Indicated value（100）variance in energy
efficiency ratio

5.2.3 Transport Equipment
5.2.3.1. WDM Equipment(1) Equipment Definition
 WDM equipment is a product that performs info-communication functions
over a single fiber-optic cable by multiplexing multiple optic signals ofdifferent wavelengths.
 WDM equipment from recent years may include devices that integrate OSI
reference models from layer 2 (data link) to the layer 3 (network). Due tothe difficulty of defining a standard device configuration, here, WDM
equipment refers to devices equipped for only OSI layer 1 (physical).
 This guideline applies to WDM equipment used in terrestrial systems.
Submarine systems are exempt. Furthermore, relay equipment is exempt
because relay equipment consumes less power compared to terminal
equipment.
[Functional Configuration Subject to This Guideline]
WDM equipment is categorized as follows based on WDM multiplexing method,OADM function and OADM method.
WDM
multiplexing
methodOADM function(Note 1)

DWDM

Yes

(Note 2)OADM method
Fixed

①

DWDM with Fixed OADM

Reconfigurable②

DWDM with ROADM－③

DWDM (Point-Point)

Fixed

④

CWDM with Fixed OADM

Reconfigurable⑤

CWDM with ROADM－⑥

CWDM (Point-Point)

No
CWDM

Yes

(Note 3)
No

Classification

Notes
1: Point-Point optical multiplexing/demultiplexing is considered to be included within
OADM functions, but categories are expressed in terms of with or without OADM.
37

Ecology Guideline For the ICT Industry

2:

DWDM (Dense Wavelength Division Multiplexing): the number of wavelengths
multiplexed is for the most part no less than 32ch. Primarily used in backbone and metro
core networks.
CWDM (Coarse Wavelength Division Multiplexing): the number of wavelengths
multiplexed is for the most part no more than 16ch. Primarily used in metro access andparts of metro core.

3:

Among the above categories, 2) DWDM with ROADM and 6) CWDM (Point-Point)
are subject to this Guideline, both of which are expected to exhibit energy-saving
impact and for which future demand is forecast.
①DWDM with Fixed OADM

②DWDM with ROADM

OSC

OSC

OSC

OSC

OSC

OSC

WSS

OSC
OSC

WSS
DeMux

Mux

Mux

DeMux

Mux

DeMux

CPU

Mux

DeMux

CPU

Transponder

Transponder

Transponder

Transponder

OSC

OSC

OSC

OSC

OSC

OSC

OSC

OSC

OSC

OSC

④CWDM with Fixed OADM

DeMux

Mux

Mux

DeMux

Transponder

Transponder

Transponder

Transponder

Transponder⑥CWDM(Point to Point)
Transponder

CPU

Mux

OSC

Mux

Transponder

OSC

DeMux

DeMux

Mux

分波

Transponder

DeMux③DWDM(Point to Point)

CPU(2) Figures of merit
Use the figure of merit TEER (Telecommunications Energy Efficiency Ratio)(Note 1) for transport equipment stipulated by ATIS (Alliance for
Telecommunications Industry Solutions), as follows.
TEERCERT = DTEER/PTEER-CERT= ΣDi/(PCERT-0+PCERT-50+PCERT-100)/3
TEERCERT: Certified TEER measured at a specific configuration (Note 2)
DTEER: Total data rate (bps)
PTEER-CERT: Measured power consumption (W)Di: Data rate (bps) at a given interface i
PCERT-0: Measured power consumption (W) at a 0% data usage rate
PCERT-50: Measured power consumption (W) at a 50% data usage rate
PCERT-100: Measured power consumption (W) at a 100% data usage rate38

Ecology Guideline For the ICT Industry(Note 1): ATIS-0600015.2009: General TEER base standard(Note 2): ATIS-0600015.02.2009: Transport product category TEER
This figure of merit applies not only to WDM equipment but also to “transport
equipment” including SONET/SDH equipment and the like.
<For WDM Equipment>
DWDM figure of merit: TEER = maximum throughput (Gbps) / average power
consumption (W)CWDM figure of merit: TEER = maximum throughput (Gbps) / average power
consumption (W)Note: Calculate average power consumption = (power consumption at fullwavelength + power consumption at one wavelength) / 2.
Peak throughput is total throughput at full wavelength.
With WDM equipment, unlike packet interface cards, it is common toguarantee constant 100% transport; therefore,
PCERT-0 = PCERT-50 = PCERT-100.
Thus, TEERCERT in WDM equipment under ATIS is in essence as follows.
TEERCERT = DTEER/PTEER-CERT= maximum transmission capacity / power consumption when
configured for maximum transmission capacity(This is provided as a ROADM system example for ATIS-0600015.02.2009.)
In evaluating the power consumption of equipment, measure power
consumption at one wavelength and at full wavelength, so as to provide
visibility into low power consumption in common portions such as the opticalamplifier and the optical multiplexer/demultiplexer, and use the following for
average power consumption.
Average power consumption = (power consumption at full wavelength + power
consumption at one wavelength) / 2

39

Ecology Guideline For the ICT Industry

Power Consumption atfull wavelength (Pn)

(P1+Pn)/2

Power consumption
at one wavelength
Power consumption of common portion

1

2

n
(Max
wavelength)3
Wavelengt
h

relay

ROADM

relay

relay

ROADM

relay

WDM
transmission distance throughput

throughput

Client equipment

Client equipment

Given that equipment configuration differs by vender, it is preferable to use thefollowing parameters, which rely largely on power consumption and enablestipulation through external interface.
> Total throughput on client side.
> Transmission distance of a section (Use 0.25dB/km)
Generally, it is believed power consumption rises with an increase in theseparameters. However, in the case of DWDM, the increase in power consumption
in relation to transmission distance of a section is believed to be small in light ofthe overall figure.
For that reason, use as a metric value that results from dividing maximum
throughput value by average power consumption and do not considertransmission distance of a section.
[Definition of Throughput]40

Ecology Guideline For the ICT Industry

Throughput is defined as the total effective client signal rate (converted to asingle direction) passing through the device (does not include closed andattached FEC within WDM).
Example of throughput by transponder type
Client side

(transponder)

WDM side

1 port transponder

10G

10G+FEC

throughput＝0G

MUX transponder

2.5G×4

10G+FEC

throughput＝0G （2.5G×4）(3)(3) Normative References[1] Method for determining normative references
Normative references for DWDM and CWDM equipment shall be values
derived by accounting for technological trends to the average metric values
based on products shipped in Fiscal Year 2008 (CIAJ survey).
[Normative References]
DWDM equipment: 0.32 Gbps/W
CWDM equipment: 0.48 Gbps/W[Approximate Date for Achieving Normative References]
End of Fiscal Year 2012
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference. In assessment scale, the rank including normativereference shall be ★★.
Reference example 1) Average power consumption at normative reference for
800 Gbps DWDM equipment is 2,500 W.
Reference example 2) Average power consumption at normative reference for
40 Gbps CWDM equipment is 83.3 W.
Assessment
scale

Rate of reduction vs.
power consumption
at NR

★★★★★

n≧30%

Average power
consumption for
800GbpsDWDM
P≦1,750★★★★

20%≦n＜30%

1,750W＜P≦2,000

41

Average power
consumption for
40GbpsCWDM
P≦58.458.4W＜P≦66.7

Ecology Guideline For the ICT Industry★★★
★★
（includes NR）

10%≦n＜20%0%≦n＜10%2,000W＜P≦2,250

66.7W＜P≦75.0W

2,250W＜P≦2,500

75.0W＜P≦83.3

Normative reference
P＞2,500
not achieved(Note) In power consumption, calculate values to the first decimal place.
★

P＞83.3(4) Measurement Methodology[1] Measurement configuration(a) Subject: 1 equipment (not in units of frames or shelves)(b) Mounting: Configure and equip with function blocks for maximum
throughput(c) Power source: Redundant configuration (DC)(d) Optic cable connection:> All mounted within device> Corresponds to measuring equipment on client side
> Corresponds to return path of transmission(e) Basic configuration> Use Ring for DWDM with ROADM>Use point to point for CWDM

Example of measurement configuration
Optical Amplif ier
AMP）

Optical Wavelength
Division Multiplexing
Unit
MUX/DMUX/OSW

Optical Amplif ier
AMP

（

（

AMP with maximum gain（））
(transponder)

To be connected
when loaded

Client interface: with maximum
power consumption / throughput
Measurement Device[2] Measurement conditions(a) Environmental conditions: Temperature of 25°C ±5°C (no stipulations forhumidity or air pressure)(b) Measurement precision: ± 1%(c) Test voltage: - 48V ± 1V in DC(d) Slot mounting: Full mounting (use maximum mounting regardless ofredundancy)
 Maximum mounting refers to the state that maximizes equipment
throughput.
 Where different types of optical amps exist, equip with that which
provides maximum distance of a span.
42

Ecology Guideline For the ICT Industry

 Mount all cables(e) Load conditions:> 1 wave (minimum wavelength count but maximum bandwidth)> Full wavelength (maximum bandwidth)(f) Points to note in testing: Stabilize by running for 15 continuous minutes
under stipulated conditions before taking measurements.
(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.3.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Permissible variance due to differences in equipment (units) shall be
determined in the future.
The average of the actual measurement values for the figure of meritattained by the vendor shall be submitted as the assessment result.

5.2.4 PON Equipment
5.2.4.1. GE-PON Equipment(1) Equipment Definition[Common Items]
Ethernet PON equipment in compliance with or an extension of IEEE802.3ah,
providing a maximum transmission rate of 1 Gbps.
OLT (Note 1)
 Power source specifications (AC or DC)
 No line concentrator functions (Note 2)
ONU (Note 3)
 Power source specifications (AC) (Note 4)
 Standalone functions only. Compound functions not included. (Note 5)
 UNI type (100 Mbps or 1 Gbps)
OLT
CPU
PON-IF n
PHY

MAC

Opt.MD

PON-IF 2

・・・

AC Adapter
OpticalCoupler

PON-IF 1
PHY

MAC

Opt.MD・・・・・・

Core
Network

ONU
Opt.MD

AC or DC

43

MAC

PHY

Routeror PC

Ecology Guideline For the ICT Industry

Notes
1: NNI I/F and the number of ports not stipulated. QoS and functions such as priority
control not stipulated. Number of branches also not stipulated.
2: The scope of this Guideline covers OLT for the domestic carrier market only. If the
OLT has functions other than PON (such as line concentrator functions), disable thosefunctions before taking measurements.
3: UNI I/F and the number of ports not stipulated. QoS and functions such as priority
control not stipulated.
4: The scope of this Guideline covers ONU for the domestic consumer market only. AC
adapter power supply is standard for ONU domestic consumer market.
5: If the ONU has multiple functions, disable those functions before taking
measurements.

(2) Figures of merit For OLT, use a value that divides average power consumption for the OLT(at full mounting), measured using DC input if the product power source is
DC and AC input if the power source is AC, by the total number of lines(Total number of IF ports × number of PON branches).
OLT figure of merit: E = average power consumption (W)/total number oflinesFor ONU, use ONU average power consumption measured on the supply
side of the AC adapter.
ONU figure of merit: P = average power consumption (W)Note:
Average power consumption = (power consumption at 100% load +power consumption at 50% load + power consumption at 0% load) / 3
Total number of lines = total number of IF ports × 32

The above metrics shall be used as figure of merit not only for GE-PON, butalso for “PON Equipment” including G-PON and 10G-PON.
(3) Normative References[1] Method for determining normative references
Normative references for DWDM and CWDM equipment shall be values
derived by accounting for technological trends to the average metric values
based on products shipped in Fiscal Year 2008 (CIAJ survey).
[Normative References]
OLT: 0.46 W (AC) or 0.42 W (DC)ONU: 3.68 W (100Mbps) or 4.45 W (1Gbps)[Approximate Date for Achieving Normative References]44

Ecology Guideline For the ICT Industry

End of Fiscal Year 2012
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference. In assessment scale, the rank including normativereference shall be ★★.
Average power consumption for OLT normative references: 0.46 W (ACpower supply) or 0.42 W (DC power supply)
Average power consumption for ONU normative references: 3.68 W (100Mbps) or 4.45 W (1 Gbps).
OLT Power Consumption Values
Assessment
scale
★★★★★

n≧30%

Average power
consumption for OLT(AC power source) (W)E≦0.322★★★★

20%≦n＜30%

0.322W＜E≦0.368

0.294W＜E≦0.336★★★

10%≦n＜20%

0.368W＜E≦0.414

0.336W＜E≦0.378

0.414W＜E≦0.46

0.378W＜E≦0.42★★
（includes NR）

Rate of reduction
vs. power
consumption at NR

0%≦n＜10%

Average power
consumption for OLT(DC power source) (W)E≦0.294

Normative
E＞0.46
reference notachieved(Note) In power consumption, calculate values to the third decimal place.
★

E＞0.42

ONU Power Consumption Values
Assessment
scale
★★★★★

n≧30%

Average power
consumption for ONU(100 Mbps)
P≦2.576★★★★

20%≦n＜30%

2.576＜P≦2.944

3.115＜P≦3.56★★★

10%≦n＜20%2.944＜P≦3.312

3.56＜P≦4.005

3.312＜P≦3.68

4.005＜P≦4.45★★
（includes NR）

Rate of reduction
vs. power
consumption at NR

0%≦n＜10%

Average power
consumption for ONU (1Gbps)
P≦3.115

Normative
P＞3.68reference notachieved(Note) In power consumption, calculate values to the third decimal place.
★

P＞4.45(4) Measurement Methodology[1] Measurement configuration[OLT]
For OLT, use 1 Gbps for both the NNI side and the PON side and use thefollowing three settings for load factor. Furthermore, in stipulating load factor, theload factor specified by data entry side shall be used (NNI or UNI).

45

Ecology Guideline For the ICT Industry
OLT

1G

1G
PONIF 1

ONU

1G

1G

・・・・

ONU

・・・・

PONIF 2

1G

1G
PONIF n

ONU

NNI

UNI

PONIF

Connect to any Control Equipment.
(The condition is not defined.)

CPU
System-0

System-1

Power
Meter

AC Power Supply(DC Power Supply)

100% load factor: a state where 64 byte frames flow continuously (without interruption).
50% load factor: the state where 512 byte frames flow 50%.
0% load factor: the state where frames are not flowing.

[ONU]
For ONU, carry out measurements using configurations (a) and (b). As in the caseof OLT, apply three load factor settings.
(a) 1 Gbps on PON side, 1 Gbps on UNI side(b) 100 Mbps on PON side, 100 Mbps on UNI side
Furthermore, in stipulating load factor, as in the case of OLT, it shall be
acceptable to use the load factor specified by data entry sites (NNI or UNI).
1G

1G

100M

ONU
PONIF

100M
ONU

UNI

PONIF

UNI

[2] Measurement conditions(a) Temperature: room temperature (around 25°C ± 5°C)(b) Humidity: no stipulation(c) Air pressure: no stipulation(d) Power supply conditions:
Using AC voltage: AC 100 V ± 10% (50/60Hz ± 1%)
Using DC voltage: DC -48 ± 1 V(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by the46

Ecology Guideline For the ICT Industry

vendor according to 5.2.4.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Permissible variance due to differences in equipment (units) shall be
determined in the future.
The average of the actual measurement values for the figure of meritattained by the vendor shall be submitted as the assessment result.

5.2.5 Broadband Base Station Equipment
5.2.5.1. WiMAXTM Base Station Equipment(1) Equipment Definition
 Mobile WiMAX base station equipment in compliance with IEEE802.16e.
 Applies to BS (Base Station, WiMAX base station) only and does notinclude MS (Mobile Station, WiMAX subscriber device) and higher end
core network equipment.
 BS equipment takes the following three configurations.
[1] RF (radio frequency) and BB (baseband) separate-type.
[2] RF and BB integrated.
[3] RF and BB integrated with ASN-GW (Access Service Network
Gateway).

△

Applied to

GPS

MS

BS(RF/BB separate)

Sector 1
RF/AMP

Sector 2
RF/AMPBB

ASN(BS/ASN-GW
Separate)

Sector 3
RF/AMP

ASN-GW△GPS
BS（RF/BB integrated)

RF/AMP/BB△

GPS

BS（RF/BB/ASN-GW integrated)
RF/AMP/BB

ASN-GW

47

ASN（BS/ASN-GW
integrated）

CSN

HA
AAA

Ecology Guideline For the ICT Industry

Notes
AAA: Authentication, Authorization, and Accounting;
AMP: Amplifier; ANT: Antenna;
ASN: Access Service Network; ASN-GW: Access Service Network Gateway;
BB: Base Band; BS: Base Station、WiMAX base station;
CSN: Connectivity Service Network;
GPS: Global Positioning System
HA: Home Agent;
MS: Mobile Station、WiMAX subscriber device ;RF: Radio Frequency

48

Ecology Guideline For the ICT Industry[Common Equipment Specifications and Equipment Configurations]
Equipment
specifications/configuration

Equipment
specifications

Item

Specifications

Frequency band

2,595MHz - 2,625MHz or
2,582MHz - 2,592MHz
10MHz
TDD
SOFDMA/QPSK, 16QAM, 64QAM (※)※64QAM is down link only
1024
DL/UL ： (29:18)
None
GPS

Signal bandwidth
Duplex operation
Wireless access system /modulation system
FFT size
UL/DL frame ratio
Segmentation
Inter-base stationsynchronization system
Antenna configuration

Equipment
MIMO Matrix-A or Matrix-B(2TX+2RX)
configuration
Notes:
SOFDMA: Scalable Orthogonal Frequency Division Multiple Access;
DL: Down Link; UL: Up Link;
QAM: Quadrature Amplitude Modulation;
QPSK: Quadrature Phase Shift Keying;
FFT: Fast Fourier Transform;
MIMO: Multiple Input Multiple Output;
FFT: Fast Fourier Transform[Categorized Equipment Specifications and Equipment Configurations]
Equipment
specifications /configuration

Item

Classification specification

RF output powerPrimary power supply
Equipment
specifications

Network interface
Transmission carrier countBaseband processor
Equipment
configuration

RF/BB configuration① 10W+10W② 5W+5W① AC② DC① Number of optical ports: N② Number of electrical ports: M
① 1
② 2
③ 3
① single (1)② dual (2)① Integrated② Separate

The above items may be combined independent of each other.
Of those combinations, the following three types, which are currently
commercialized and thus measurable, are subject to this guideline.
Name
Output power

Integrated 10W
equipment (1 BB
system)
10W+10W

Integrated 10W
equipment (2 BB
systems)
10W+10W

49

Integrated 5W
equipment (1 BB
system)
5W+5W

Ecology Guideline For the ICT Industry

Baseband processor
RF/BB
configuration
Supply side powersource input

1 systemIntegrated

2 systems
Integrated

1 systemIntegrated

AC

AC

AC

(2) Figures of merit Figure of merit for broadband base station equipment shall be the sum of
RF output divided by the average primary supply-side power.
Figure of merit E= ΣPn/{Pidle×(1-α)+Pmax×α}
Pn: RF output power at antenna connector n (W)Pidle: primary supply-side power when transmitting only the Preamble
and MAP.
Pmax: primary supply-side power at maximum transmission (W). The
state where all down link symbols are being transmitted based on
an MS connection or the test settings.
α: average of daily down link transmission traffic rate. Average daily
traffic rate using down link Data Symbol, excluding Preambles and
MAP.
<For WiMAX Two Antenna Base Station Equipment>
Since the daily average down link traffic is not available, calculate with α =0.5 for the time being.
Figure of merit = (Pout1 + Pout2) / {(Pidle + Pmax)/2}
Pout1: RF output power at antenna connecter # 1 (W)Pout2: RF output power at antenna connecter # 2 (W)Pidle: primary supply-side input power under idle mode (W)Pmax: primary supply-side input power during maximum transmission(W)(3) Normative References[1] Method for determining normative references
Normative references for the three types of WiMAX base stationequipment stipulated above, namely, an integrated 10 W equipment (onesystem), integrated 10 W equipment (two systems), and integrated 5W
equipment (one system) shall be values derived by accounting fortechnological trends to the average metric values based on current products(CIAJ survey).

50

Ecology Guideline For the ICT Industry[Normative References]
Integrated 10 W equipment (one system): 12.60
Integrated 10 W equipment (two systems): 9.63
Integrated 5W equipment (one system): 5.84
[Approximate Date for Achieving Normative References]
End of Fiscal Year 2012
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference. In assessment scale, the rank including normativereference shall be ★★.
Average power consumption for normative reference of integrated 10 W
equipment (one system): 158.7 W
Average power consumption for normative reference of integrated 10 W
equipment (two systems): 207.7 W
Average power consumption for normative reference of integrated 5 Wequipment (one system): 171.2 W
Assessment
scale

Rate of reduction
vs. power
consumption at NR

Average power consumption
normative reference for
integrated 10W equipment(1BB) (W) (Note 1)

★★★★★

n≧30%

P≦111.09

Average power
consumption
normative reference
for integrated 10W
equipment (2BB) (W)(Note 1)
P≦145.39★★★★

20%≦n＜30%

111.09＜P≦126.96

145.39＜P≦166.16★★★

10%≦n＜20%

126.96＜P≦142.83

166.16＜P≦186.93

142.83＜P≦158.7

186.93＜P≦207.7★★
（
includesNR）0%≦n＜10%

Normative
P＞158.7
reference notachieved(Note) In power consumption, calculate values to the first decimal place.
★

Assessment
scale

Rate of reduction
vs. power
consumption at NR

★★★★★

n≧30%

Average power consumption
normative reference for
integrated 5W equipment(1BB) (W) (Note 2)P≦119.86★★★★

20%≦n＜30%

119.86＜P≦136.99★★★

10%≦n＜20%

136.99＜P≦154.11★★
（includes NR）

0%≦n＜10%154.11＜P≦171.2

Normative
P＞171.2
reference notachieved(Note) In power consumption, calculate values to the first decimal place.
★

51

P＞207.7

Ecology Guideline For the ICT Industry

Notes
1: When RF output power at antenna connecters are
2: When RF output power at antenna connecters are

10.0 W X 2
5.0 W X 2(4) Measurement Methodology[1] Measurement configuration[2] Measurement conditions[Environment and Electrical Conditions]
Item
Environment
conditions
Primary power
supply voltage
Operatingconditions

Conditions
Room
temperatureAC
DC
10W×2ANT
5W ×2ANT

Notes+25℃±5℃
Designated voltage ± 1%

50Hz or 60Hz

Designated voltage ± 0.5%
・Designated power no morethan ＋12.2%（＋0.5dB）
・Measure up to one decimal
point

Measure transmission powerusing TELEC-T137
measurement method forantenna power.

[Non-Environmental and Electrical Conditions](a) The number of units of BS equipment or AMP to be measured shall not
be stipulated, but if multiple units are measured, the average figure
shall be used.
(b) This guideline does not stipulate the number of times measurements
shall be taken for each item in relation to a BS or AMP. However, use
an average value when measuring multiple times.
(c) Measure the following functions after having provided continuous
power supply to the equipment.
 Upstream receiving circuit, line interface, GPS circuit(d) Begin measurements after the equipment has been exposed to room52

Ecology Guideline For the ICT Industry

temperature for one or more hours with the power on.
[Measurement methodology]
Item
Primary supply
side power at
maximum RF
outputPrimary
supply-side
input power
under idle mode

Pmax

Pidle

Measurement method
Use an MS connection or  Measure using a wattmeter.
test settings where all  Use effective power
down link symbols are
consumption of the equipment
being transmitted.
when input is AC.
Configure so only down  Acceptable to use Ampere
link preamble and MAP aremeter/voltmeter when input isbeing transmitted. (Data is
DC.
PUSC)

(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.5.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Permissible variance due to differences in equipment (units) shall be
determined in the future.
5.2.5.2. LTE Base Station Equipment(1) Equipment Definition
・ An LTE/E-UTRAN base station (eNodeB） that complies with 3GPP
standards.
・ Comprises of an eNodeB control unit and radio unit. Does not include
maintenance tools, external power sources, rectifiers, remote tilt
controller or the like.
・ Scope applies to the following implemented configurations
Name
Output power per sector
Radio
unit
configuration

andcontrol

unit

Segregated
20W Device
20W + 20W

Integrated
20W Device
20W + 20W

Segregated
10W Device
10W + 10W

SegregatedIntegrated

Segregated

Note:
Segregated: Radio unit and control unit are driven by separate power sources.
Integrated: Radio unit and control unit are driven by the same power source.

53

Ecology Guideline For the ICT Industry

Note:
3GPP: 3rd Generation Partnership Project
LTE: Long Term Evolution
E-UTRAN: Evolved UMTS Terrestrial Radio Access Network
eNodeB: evolved Node B

REC: Radio Equipment Control

RE: Radio Equipment【Common Equipment Specifications】
Item
Frequency bandSpecifications(Not specified)Signal bandwidth
Number of carriers

10MHz
1 Carrier

Number of sectors
Number of anntenas

3
Transmit: 2
Receive: 2 (space diversity)
Transmit: OFDMA
Receive: SC-FDMA
FDDRadio accessmethodMultiplexing
methodModulation method

S1 interface
Primary Powersupply input
Redundancy

Notes
For reference, provide frequency band
information when submitting
measurement data.
Measurement conditions

Transmit: QPSK, 16QAM,
64QAM
Receive: QPSK, 16QAM
Gigabit Ethernet x n
DC –48V
Not applicable
54

MIMO

n:1 or moreEcology Guideline For the ICT Industry

configuration
MIMO:Multiple Input Multiple Output
OFDMA: Orthogonal Frequency Division Multiple Access
SC-FDMA: Single Carrier-Frequency Division Multiple Access
FDD: Frequency Duplex Division
QPSK: Quadrature Phase Shift Keying
16QAM:16 Quadrature Amplitude Modulation
64QAM:64 Quadrature Amplitude Modulation(2) Figures of Merit・ Broadband base station equipment figure of merit shall be a value that is thetotal transmission output divided by the average supply side power input.
Figure of Merit: E＝ΣPn/「Pidle×(1－α)＋Pmax×α」
Pn: Transmitted power (W) of antenna connector nPidle: Primary supply-side input power (W) when there is no load, with the traffic
resource block removed from E-TM1.1 of 3GPP TS36.141. Furthermore,
operation conditions with no traffic (but with broadcast information)
shall be permissible.
Pmax: Primary supply-side input power (W) during maximum transmission, 3GPP
TS36.141 E-TM1.1 transmission state
α: Daily average transmission traffic rate
＜LTE Two Antenna Base Station Equipment＞
Calculate using α＝0.5 due to lack of available operating data.
Figure of Merit:E = (Pout1 + Pout2)/「(Pidle + Pmax)/2」
Pout1: Transmission power (W) from antenna connector 1
Pout2: Transmission power (W) from antenna connector 2
Pidle: Primary supply-side input power (W) when there is no load
Pmax: Primary supply-side input power (W) during maximum transmission(3) Normative References[1] Method for determining normative references
Normative references for the abovementioned three types of LTE basestation equipment (Segregated 20W Device, Integrated 20W Device,
Segregated 10W Device) shall reflect improvements upon average values for
current products (per CIAJ) based on technical trends.

55

Ecology Guideline For the ICT Industry【Normative References】
Segregated 20W Device: 20.32(%)
Integrated 20W Device: 13.77(%)
Segregated 10W Device: 6.91(%)
【Approximate Date for Achieving Normative References】
End of Fiscal Year 2013
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption
at normative reference. In assessment scale, the rank including normativereference shall be ★★.
Average power consumption for normative reference for segregated 20W
equipment: 590.55W
Average power consumption for normative reference for integrated 20W
equipment: 871.46W
Average power consumption for normative reference for segregated 10W
equipment: 868.31W
Assessment
Scale

Rate of reduction
vs. power
consumption at NRn≧30%

Average power
consumption normativereference (W) forsegregated 20W
equipment (Note 1)
P≦413.38

Average power
consumption normativereference (W) for
integrated 20W
equipment (Note 1)
P≦610.02

★★★★★
★★★★

20%≦n＜30%

413.38<P≦472.44

610.02<P≦697.16★★★

10%≦n＜20%472.44<P≦531.49

697.16<P≦784.31

531.49<P≦590.55

784.31<P≦871.46

Normativereference notachieved

P>590.55

P>871.46

Assessment
Scale

Rate of reduction
vs. power
consumption at NR

★★★★★

n≧30%

Average power
consumption normativereference (W) forsegregated 10W
equipment (Note 2)
P≦607.81★★★★

20%≦n＜30%

607.81<P≦694.64★★★

10%≦n＜20%694.64<P≦781.47★★
(include NR)★

★★
(include NR)★

0%≦n＜10%0%≦n＜10%781.47<P≦868.31

Normative
P>868.31
reference notachieved(Note) In power consumption, calculate values to the first decimal place.

Notes
56

Ecology Guideline For the ICT Industry

1: When transmission output power is 20 W × 2
2: When transmission output power is 10 W × 2(4) Measurement Methodology[1] Measurement configuration【Integrated】【Segregated】[2] Measurement conditions【Environment and Electrical Conditions】
Item

Condition

57

Notes

Ecology Guideline For the ICT Industry

Environment
conditions

Primary
supply-side
input power
voltage
Operatingconditions

Room
temperatureDC+25℃±5℃

20W×2ANT・No more than Designated power＋12.2% （＋0.5dB）
・Measure up to one decimal point

10W ×2ANTDC -48V ± 1%

Measure transmission powerusing TELEC-T137
measurement method forantenna power.

【Non-Environmental and Electrical Conditions】(a) This guideline does not stipulate the number of units of eNodeB equipment tobe measured. However, use an average value when measuring multiple units.
(b) This guideline does not stipulate the number of times measurements shall betaken for each item in relation to an eNodeB equipment. However, use an
average value when measuring multiple times.
(c) The following functions are necessary functions for an eNodeB and themeasurement shall be conducted when continuous power is supplied to thesefunctions.
・Upstream receiving current, line interface, (S1/X2 interface), RRC processor,
MAC processor, RLC processor, and PDCP processor.
(d) Begin measurements after the equipment has been exposed to room
temperature for one or more hours with the power on.
MAC: Medium Access Control, PDCP: Packet Data Convergence Protocol,
RLC: Radio Link Control, RRC: Radio Resource Control【Measurement Methodology】
Item
Primary
supply-side
input powerat maximum
transmission
powerPrimary
supply-side
input power
when there is
no loadMeasurement method
Pmax

Set to 3GPP TS36.141 E-TM1.1
transmission state.

Pidle

Set to the transmission state
removed the traffic resource blocks
from the 3GPP TS36.141 E-TM1.1.

Furthermore, operation
conditions with no traffic (butwith broadcast information)
shall be permissible.

(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
58

Measure using awattmeter.
(Using an ammeter or
voltmeter is acceptable.)Ecology Guideline For the ICT Industry

The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.5.2(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Permissible variance due to differences in equipment (units) shall be
determined in the future.

5.2.6. Power Equipment
5.2.6.1. External Power Source (AC Adapters)(1) Equipment Definition
In this Guideline, the term refers to an AC-DC converter that takes ACcommercial power supply and provides DC power to the equipment.
This assessment applies to external power sources for customer-premises
equipment having a name plate output (rated output) Pno (Pno: Nameplate
Output Power) of 1W<Pno≦49W.
This assessment applies to AC adapters procured separately. Those whichcome as an attachment with equipment shall be assessed as part of theequipment itself and shall be excluded from the assessment of this section.
(2) Figure of merit
The figures of merit are established in reference to the figures of merit set
forth under the International Efficiency Marking Protocol. Evaluate average
conversion efficiency η at nameplate output Pno (W) based on conversion
efficiency at 25% load η25, conversion efficiency at 50% load η50, conversion
efficiency at 75% load η75 and conversion efficiency at 100% load η100.
η＝(η25＋η50＋η75＋η100)/4(3) Normative References[1] Method for determining normative references Normative references are established in reference to International
Efficiency Marking Protocol.
 Decide individual normative references for each nameplate output.
[Normative References]
As a normative reference for external power sources, average conversion
efficiency value at nameplate output Pno (W) shall be equivalent to Mark V of
the International Efficiency Marking Protocol

59

Ecology Guideline For the ICT Industry[Approximate Date for Achieving Normative References]
April 2011 (as required by the EuP Directive (Directive on Eco-Design ofEnergy Using Products).
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference. In assessment scale, the rank including normativereference shall be ★★.
Assessment
scale

Rate of reduction
vs. power
consumption at NR

Average conversion efficiency η（See formula （＊））

★★★★★

n≧30%

η≧70.7＋5.00ln（Pno）★★★★

20%≦n＜30%

67.7＋5.46ln（Pno）≦η＜70.7＋5.00ln（Pno）★★★

10%≦n＜20%64.8＋5.88ln（Pno）≦η＜67.7＋5.46ln（Pno）★★

0%≦n＜10%（includes NR）

62.2＋6.26ln（Pno）≦η＜64.8＋5.88ln（Pno）

Normativereference notachieved(Note) Pno: Nameplate Output Power (W)η＜62.2＋6.26ln（Pno）★

(4) Measurement Methodology[1] Measurement system
DC Power Meter

AC Power
Meter
交流電力計

直流電力計

Adc

Aac

Vac

Equipment
to試験対象be tested

Vdc

Example of a measurement system using variable resistance

Using variable resistance, measure conversion efficiencies η100, η75, η50 and η25 at
nameplate currents of 100%, 75%, 50%, and 25%, respectively, and seek the averagevalue η.
[2] Measurement conditions
 Room temperature: 23°C ± 5°C
 Error tolerance of measurement equipment: use a calibrated
voltmeter/ammeter or wattmeter.
60

Ecology Guideline For the ICT Industry

Error tolerance: No more than 2% error for the ammeter/voltmeter.
Precision of no less than 0.01 W for the wattmeter.
Voltage applied: Measure upon applying voltage of 100 V (± 1 V) at
frequencies of 50 Hz (± Hz) and 60 Hz (± 0.6 Hz).
Preparations prior to measurement: Begin measurements after running
100% nameplate current through the external power source to be tested
for no less than 30 minutes.

(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.6.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Permissible variance due to differences in equipment (units) shall be
determined in the future.
Until then, submit the average measurement value of the figure of merit
determined by the vendor as the assessment result.
5.2.6.2. Rectifiers(1) Equipment Definition
A rectifier refers to AC-DC converters that receive primary energy from acommercial power supply, and supplies DC power to a network equipment,
while floating-charges a storage battery, which is a backup power source.
Applies to modules having a power conversion function of power supply
for telecommunications or cellular phone base stations.
However, this standard power supply does not apply to wireless basestations other than cellular phone base stations or to thyristor rectifiers.
Furthermore, the output voltage is a nominal DC－48V.
(2) Figure of Merit
The figure of merit is based on ATIS specified TEER※1, and shall becalculated using the following formula.
8 i 10%

TEER  i3

6

 1,000

Pout
Pin

Single-phase AC input: Pin[input power] = Vin[input voltage] x Iin[input
current] x PF[power factor]
61

Ecology Guideline For the ICT Industry

Three-phase AC input: Pin = Vin x Iin x PF x
DC output: Pout[output power] = Vout[output voltage] x Iout[output current]※1: ATIS-0600015.04.2010: Energy Efficiency for Telecommunication Equipment: Methodology
for Measurement and Reporting DC Plant – Rectifier Requirements(3) Normative References[1] Method for determining normative references
The normative references were determined by calculating theequipment TEER and analyzing product trends.
【Normative References】
Single-phase AC100V input rectifier: TEER＝862
Single-phase AC200V input rectifier: TEER＝878
Three-phase AC200V/400V input rectifier (output power capacity of lessthan 5kW): TEER＝891
Three-phase AC200V/400V input rectifier (output power capacity of 5kW
or more): TEER＝908【Approximate Date for Achieving Normative References】
April 2012
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference. In assessment scale, the rank including normativereference shall be ★★.
Use the applicable assessment scale standard for equipment that
supports multiple inputs such as single-phase AC100V/200V common
systems.
Single-phase AC100V input rectifier
Assessment Scale
★★★★★
★★★★
★★★
★★
（includes NR）★

Rate of reduction vs. power
consumption at NRn≧45%
30%≦n＜45%
15%≦n＜30%0%≦n＜15%
Normative reference not achieved

Figure of Merit（TEER）
TEER≧919
900≦TEER＜919
881≦TEER＜900862≦TEER＜881
TEER＜862

Single-phase AC200V input rectifier
Assessment Scale

Rate of reduction vs. power
consumption at NR

62

Figure of Merit（TEER）

Ecology Guideline For the ICT Industry

★★★★★
★★★★
★★★
★★
（includes NR）★

n≧45%
30%≦n＜45%
15%≦n＜30%0%≦n＜15%
Normative reference not achieved

TEER≧929
911≦TEER＜929894≦TEER＜911878≦TEER＜894
TEER＜878

Three-phase AC200V/400V input rectifier (output power capacity of less than
5kW)
Assessment Scale
★★★★★
★★★★
★★★
★★
（includes NR）★

Rate of reduction vs. power
consumption at NRn≧30%
20%≦n＜30%
10%≦n＜20%0%≦n＜10%
Normative reference not achieved

Figure of Merit（TEER）
TEER≧921
911≦TEER＜921
901≦TEER＜911891≦TEER＜901
TEER＜891

Three-phase AC200V/400V input rectifier (output power capacity of 5kW or
more)
Assessment Scale
★★★★★
★★★★
★★★
★★
（includes NR）★

Rate of reduction vs. power
consumption at NRn≧30%
20%≦n＜30%
10%≦n＜20%0%≦n＜10%
Normative reference not achieved

Figure of Merit（TEER）
TEER≧934
925≦TEER＜934916≦TEER＜925
908≦TEER＜916
TEER＜908(4) Measurement Methodology
In light of the stipulations of ATIS, the following measurement conditions
shall be used.
・ Room temperature: 25℃±3℃
・ Humidity: 30%-75%
・ Error tolerance of measurement equipment: Use voltmeters, ammeters or
wattmeters that have been calibrated.
Measurement precision:
Ammeters and voltmeters: within ±1%
Wattmeters: within ±1%.
・ Voltage applied: Measure after applying single-phase 100V（±1%） or
single-phase 200V（±1%）, three-phase 200V（±1%） or three-phase 400V（±1%） at a frequency of 50Hz（±1%） or 60Hz（±1%）.
・ Preparations before measurement: Apply current equivalent to 100% of
nameplate current to the module to be tested for at least 30 minutes before
beginning measurements.

63

Ecology Guideline For the ICT Industry(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.6.2 (4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
Permissible variance due to differences in equipment (units) shall be
determined in the future.
Until then, submit the average measurement value of the figure of merit
determined by the vendor as the assessment result.

5.2.7 Server Equipment
5.2.7.1. Servers
The assessment standard for servers shall be different for active state and idle
state in order to more accurately reflect actual operating conditions. The figure of
merit specified by SPEC® (Standard Performance Evaluation Corporation) shallbe applied as the assessment standard for active state. The top runner standard(2010 Ministerial Notification No. 74 from METI) shall be applied as theassessment standard for idle state.
(1) Definition
In this Guideline, a server is a computer device comprising of a central
processing unit (CPU), a main memory, an input/output control and a powersource. It is designed to exist as part of a network to provide information andservices to other computer devices 24/7. It must be able to use an operating
system (OS) so that it can be installed with and run user applications. Examplesof servers include but are not limited to the following:> file servers> mail servers> database servers> authentication servers> web servers> media servers> game servers* Devices sold as a single unit which are actually a combination of hardware
and software (such as appliances) shall be included under servers in thissection if all that is needed to change the device to a particular use is theinstallation of (a) user application(s).
[Devices included in the scope above]
Devices which fall within the scope for assessment in active state are64Ecology Guideline For the ICT Industry

categories H, I, J of the Energy Conservation Law and JVM (Java Virtual
Machine) active equipment.
Devices which fall within the scope for assessment in idle state are allcategories of the Energy Conservation Law (A – L).
Since the scope of equipment, figure of merit, normative reference, andmeasurement methodology for assessment standards for active state and idle
states are different, they are noted separately below.
<<Assessment standard for active state>>(2) Figure of merit
The figure of merit, SPECpower_ssj®, specified for servers by SPEC® *1 shallbe applied, and will be calculated as follows:
E=overall ssj_ops/watt=∑ssj_ops/∑power consumption (W)ssj_ops is a metric for server processing capacity and is attained by
implementing SPECpower_ssj®2008 v. 1.10 server power consumption
performance benchmark test program by SPEC® to the servers included in thescope of the assessment. The performance (ssj_ops) at CPU load rates (0 –100%) and average power consumption are measured, then the capacity(ssj_ops) at the respective target loads are totaled and divided by the total
average power consumption (W) (∑ssj_ops/∑power), and that figure isconsidered to be the capacity metric (overall ssj_ops/watt) per electric power.
*1 http://spec.org/power_ssj2008.
(3) Normative reference[1] Method for determining normative references
A trend analysis of the product shall be conducted based on publicly
disclosed SPEC® data.
[Normative reference]
E=1,000[Approximate Date for Achieving Normative Reference]
The end of Fiscal Year 2010
[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption at
normative reference. In assessment scale, the rank including normativereference shall be ★★.
Assessment

Rate of reduction vs.

Energy efficiency ratio E per category

65

Ecology Guideline For the ICT Industry

scale
★★★★★
★★★★
★★★
★★
(includes NR）★

power consumption
at NR
n≧60%
40%≦n＜60%
20%≦n＜40%0%≦n＜20%

H, I, JA – G, K, L

E≧2,500

TBD

1,666≦E＜2,500
1,250≦E＜1,666
1,000≦E＜1,250(Normative reference
not achieved)

E＜1,000(Note) Comparison of the rate of reduction against power consumption at
normative reference among equipment with similar processing capacity(∑ssj_ops value).
[Formula for calibrating the threshold]
20% reduction: E/0.8=1,250
40% reduction: E /0.6=1,660
60% reduction: E /0.4=2,500(4) Measurement methodology[1] Measurement methodology
The server power consumption performance benchmark testing program,
SPECpower_ssj®2008 v1.10, provided by SPEC® shall be used. For details,
refer to the following sites (*2).
*2: SPEC® User Guide
http://www.spec.org/power_ssj2008/docs/SPECpower_ssj2008-User_G
uide.pdf[2] Measurement conditions
Measurements shall be taken in compliance to the SPEC® measurement
conditions (*1, *2). For areas not covered by SPEC®, the following criteria
shall be applied, taking into consideration the equipment’s use in Japan.
Temperature: 25℃±5℃
Humidity: 30% - 75%
Voltage: -53VDC±5%, 100V±5% (50/60Hz±5%), 202V±5% (50/60Hz±5%)
Furthermore, measurements shall be taken in steady-state.
(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.7.1(4) Measurement Methodology. Furthermore, if
the equipment is already registered with SPEC®, use the same values as theregistered values.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normative66

Ecology Guideline For the ICT Industry

reference and assessment result.
[3] Variance in assessment result
Based on SPEC® measurement methodology, this Guideline does not specify
permissible variance.
<< Assessment standard for idle state>>(6) Figure of merit
Adopt the assessment standard based on the top runner method forcomputers (2010 Ministerial Notification No. 74 from the Ministry of Economy,
Trade and Industry), which are specified equipment in the Energy
Conservation Law. Normative reference and assessment scale are to be
determined.
Figure of merit E = {(W1+W2)/2}/Q
In this equation, E, (W1+W2)/2, W1, W2 and Q shall indicate the following
values:
E: energy efficiency ratio (W/giga calculations)(W1+W2)/2: power consumption (W)W1: power consumption in idle state (W)W2: power consumption in low-power mode (W)Q: theoretical operation (unit: giga calculations)(Note) For computers without low-power mode, W2 and W1 are the samevalue.
(7) Normative References[1] Method for determining normative references
Adopt the assessment standard based on the top runner method forcomputers (Type: server type computers), which are specified equipment in
the Energy Conservation Law.
【Normative References】
Specific normative references are as follows:
CPU Type
Dedicated
CISC
RISC

IA64
IA32

Category
No. of I/O slots
No. of CPU
socketsn<32Category
name
A

n≧32

B

2,620

n<8

C

13

8≦ n<40

D

31

n≧40
n<10

E
F

140
6.2

n≧10

G

22

0

H

1.3

67

Energy conservation
efficiency (W/GTOPS)
1,950

Ecology Guideline For the ICT Industry

1≦n<7

n<2
2≦n<4

I
J

1.2
1.9

n≧4

K

6.7

L

7.4

n≧7

【Approximate Date for Achieving Normative References】
End of Fiscal Year 2011[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption
at normative reference. In assessment scale, the rank including normativereference shall be ★★.
Assessment
scale
★★★★★
★★★★
★★★
★★
(includes NR)★

Rate of reduction
vs. power
consumption at
NRn≧60%
40%≦n＜60%
20%≦n＜40%0%≦n＜20%

Energy efficiency per category
En (W/GTOPS)

Notes

All categories （Ａ-Ｌ）
En≦E×0.4
E×0.4<En≦E×0.6
E×0.6<En≦E×0.8
E×0.8<En≦E

Normativereference notachieved

E<En

See theaforementioned
Normative
References Table
for E (W/GTOPS)
Normative
References(8) Measurement Methodology
Measurement conditions are as follows, taking into account the substance ofthe 2010 Ministerial Notification No. 74 from the Ministry of Economy, Tradeand Industry, which sets forth judgment standards for manufacturers ofcomputers per the stipulations of the Energy Conservation Law.
[1] Power consumption in an idle state shall be power consumption while ina state where there is an electrical connection to the main power source
and it is possible to operate without resetting the initial program, but
before moving into a lower power consumption mode such as stand-bymode or suspend mode per ACPI standards, and shall be expressed inwatts and measured using the following methodology.
[2] Peripheral temperature shall be 16℃-32℃.
[3] Power source voltage shall be within ±10% of rated input voltage.
However, for equipment having a rated input voltage of 100V, powersource voltage shall be 100V±10%.
[4] Power source frequency shall be rated frequency.
[5] Measure the maximum configuration with all detachable equipment,such as I/O control devices, communications control devices and a68

Ecology Guideline For the ICT Industry

magnetic disc devices that can be detached from the computer without
impeding the basic functions of the computer excluded. However, forequipment where the number of processors is scalable, takemeasurements using the minimum possible number of processors.
(9) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.7.1(8) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
With the announcement of 2010 Ministerial Notification No. 74 from the
Ministry of Economy, Trade and Industry, this Guideline does not specify
permissible variance.

5.2.8. Storage Equipment
5.2.8.1. Storage Equipment(1) Equipment Definition
Storage equipment under this guideline shall be storage equipment having
multiple disc drives, comprising of a magnetic disc control unit and amagnetic disc device, and is used with mainframe or other servers as anexternal memory device.
However, this guideline does not apply to storage equipment having amaximum data transmission speed of more than 270 GB per second.
(2) Figure of Merit
Adopt the top runner standard (2010 Ministerial Notification No. 75 from the
Ministry of Economy, Trade and Industry) for magnetic disc devices (Type:subsystems), which are specified equipment in the Energy Conservation Law.
The specific figure of merit is as follows.
Figure of Merit: E= Power consumption （W）/Storage capacity※（GB）※: Maximum amount that can be physically stored to memory. For dedicatedmirroring systems, redundant sub systems and disc arrays, include the storage
capacity in the mirrored portion, the replicated portion of the redundant sub
system and the redundant portion of the disc array.
(3) Normative References[1] Method for determining normative references
Adopt the top runner standard for magnetic disc devices (Type: subsystems),
which are identified as specified equipment in the Energy Conservation Law.
69

Ecology Guideline For the ICT Industry

The specific figure of merit is as follows.
【Normative References】
Energy efficiency ratio (E), which is the normative reference, differs per
category, and is expressed in the equation with the number of revolutions (N)indicated as a variable.
Specific normative references are as follows.
Category

Equipment/ApplicationM

For mainframe servers

E=exp(1.85*ln(N)-18.8)

N

For uses other than mainframe
servers

E=exp(1.56*ln(N)-17.7)

Normative References

Examples of normative references by rpm
・For mainframe servers
7,200 rpm: 0.094
10,000 rpm: 0.18
15,000 rpm: 0.37
･For uses other than mainframe servers
7,200 rpm: 0.022
10,000 rpm: 0.036
15,000 rpm: 0.068【Approximate Date for Achieving Normative References】
End of Fiscal Year 2011[2] Assessment scale references
Set a threshold using the rate of reduction versus the power consumption
at normative reference. In assessment scale, the rank including normativereference shall be ★★.
Assessment
scale

★★★★★
★★★★
★★★
★★
(includes NR)★

Rate of reduction
vs. power
consumption at
NRn≧60%
40%≦n＜60%
20%≦n＜40%0%≦n＜20%

Energy consumption
efficiency En
En≦E×0.4
E×0.4<En≦E×0.6
E×0.6<En≦E×0.8
E×0.8<En≦E

Normativereference notachieved

Notes
Normative references
E (W/GB) are basedon the table under (3)Normative References.

E<En(4) Measurement Methodology
Measurement conditions are as follows, taking into account the substance ofthe 2010 Ministerial Notification No. 75 from the Ministry of Economy, Trade70

Ecology Guideline For the ICT Industry

and Industry, which sets forth judgment standards, among other things, formanufacturers of computers per the stipulations of the Energy Conservation
Law.

The energy consumption efficiency of storage equipment is the power
consumption measured using the following methodology and expressed in watts
divided by storage capacity expressed in Gigabytes. However, in cases where
actual measurement is difficult, the value may be calculated using a formula.
[1] Peripheral temperature shall be 16℃-32℃.
[2] Power source voltage shall be within ±10% of rated input voltage. However,for equipment having a rated input voltage of 100V, power source voltage
shall be 100V±10%.
[3] Power source frequency shall be rated frequency.
[4] For subsystems, take measurements with the necessary amount of power tooperate the control device, buffer cache memory and a magnetic disc device,
as well as the maximum number of disc drives that can be connected to thecontrol device, in addition to the maximum number of I/O signaltransmission lines.
[5] Take measurements with the equipment power on, with the disc spinningand in a state capable of immediately writing or reading data.
(5) Assessment Result and Assessment Scale Ranking[1] Assessment result
The assessment result shall be the figure of merit actually measured by thevendor according to 5.2.8.1(4) Measurement Methodology.
[2] Assessment scale ranking
The assessment scale ranking (★-★★★★★) shall be based on normativereference and assessment result.
[3] Variance in assessment result
With the announcement of 2010 Ministerial Notification No. 75 from the
Ministry of Economy, Trade and Industry, this Guideline does not specify
permissible variance.

5.3 Implementation
5.3.1 Public disclosure of assessment results of energy-saving equipment andtarget timeline for disclosure
Vendors wishing to submit their energy-saving equipment to the Council shallmeasure and assess the equipment in compliance to criteria outlined in 5.2 of thisGuideline, submit the assessment results and other pertinent information(normative reference and assessment scale ranking) to the Council, and publicly
71

Ecology Guideline For the ICT Industry

disclose information via such medium as the Council website. In principle, only
vendors can make submissions and the Council will not accept submission ofassessment results from third parties. Indication of the assessment outcome in
the vendor’s website or other medium, such as the vendor catalog is left to thediscretion of the vendor.
Furthermore, the target timeline for public disclosure of the assessment
outcome shall be December 27, 2010 or later.
5.3.2 Procurement of energy-saving equipment by telecommunications services
providers
Telecommunications services providers planning to procure energy-saving
equipment shall establish a procurement standard based on this Guideline andthe assessment outcome of energy-saving equipment publicly disclosed on theCouncil’s website and other medium.
5.3.3 Addition of new equipment and review of the existing Guideline
Telecommunications services providers and vendors shall propose the additionof new equipment to be covered in the scope of the Guideline or a review ofexisting standards based on product trends, such as the emergence of new
functions. Upon receipt of a proposal, the Council shall decide on the addition of
the indicated equipment, the measurement methodology, normative reference,and the timing of implementation for the new criteria. In addition, the Council
shall review the Guideline as deemed appropriate.
For example, a review of the figure of merit will be necessary with the additionof a new function (optical XC or packet switching for WDM equipment), or whena new format is announced (10G-PON for GE-PON equipment), or a newequipment which is not covered by existing definitions is announced.

72

Ecology Guideline For the ICT Industry
TSPs
Disclosure of assessment
resultsofecologyconscious actions
Procurementofenergy-saving
ICT
equipment by
TSPs
Reviewofequipment
scope
andGuideline

CouncilConsult

Vendorassessment
・ Public disclosure Submit
評価結果通知・・機器の測定、評価
result（ＨＰ） ・公表（ＨＰ）・自主的な評価結果公表
Consult
参照

Disclose>Establish procurement
・調達基準作成
standard
・調達 procurement>Conduct

・対象機器の追加、>Reviewof Proposal
提案
equipment
scope
基準値見直し提案
and Guideline

TSP= telecommunications services provider

Provide information(bid)
情報提供（応札）>Review
・対象機器追加、測定of・対象機器の追加、
equipment
scope, Proposal >Review of equipment
方法、基準値の決定
基準値見直し提案
scope
and Guideline
measurement
・ガイドラインの見直し
methodology,
normative reference.
>Review of Guideline

Image of implementation of assessment standard for equipment

Step 1:

Step 2:

Assessment
outcomeinformation
shallbeprovidedtotelecommunication services providers, member organizations andcompanies of the Council, government offices, universities and researchorganizations (December 27, 2010 or later).
Assessment outcome information shall be made available with norestrictions (target summer 2011 and to be determined based on various
considerations).

6. Normative Reference for Data Centers
6.1 Basic Approach to Normative Reference
A data center is a complex facility combining ICT equipment such as servers,
storage equipment, and network equipment with other hardware including air
conditioning systems and power converters. Additionally, the various modes of use
and contractual agreements that exist contribute to a multifaceted situation.
Furthermore, in terms of services, data centers perform a variety of work andindividual data centers differ greatly in how and for what processes software is used.
For this reason, establishing a figure of merit on energy-saving as a normativereference for data centers is no easy task. Studies on this issue are currently
underway inside and outside of Japan. Therefore, this guideline uses PUE as one
figure of merit (details to follow) currently accepted on a wide scale, which serves asa useful reference for data centers to perform CO2 emission reduction activities andfor telecommunications services providers to procure data center services. Even in
the case of PUE, which has been adopted on a relatively broad scale, there isinsufficient data from actual measurements and little data has been publicly
73

Ecology Guideline For the ICT Industry

disclosed. Therefore, to promote telecommunications service providers’ CO2emission reduction activities, it is hoped that data center operators measure energy
conservation related data (e.g. PUE with clear measurement conditions) and makefurther efforts in public disclosure.
Unresolved challenges have been identified, such as the need for further
consideration of data center processing performance; for this reason, this Guideline
will continue to revisit figures of merit in consideration of future trends and issues
inside and outside of Japan.
6.2 Definition
A data center is a space or facility (including air conditioning, power converters,etc.) used exclusively to store the ICT equipment (network equipment, servers,
storage equipment, etc.) it operates.
A data center may be a stand-alone building but also could occupy a portion of
space in a shared facility (office, etc.) within a building used for other purposes.
However, this guideline covers data centers primarily providing services toexternal clients. Thus, this guideline does not apply to a small-scale server room
equipped with only a few pieces of ICT equipment.
6.3 Figure of Merit on Energy-Saving As a Normative Reference(1) The current situation of figure of merit on energy-saving
As described above, figures of merit on energy-saving as normative reference fordata centers are currently under study inside and outside of Japan. Defining
energy efficiency of data centers is quite difficult and nothing that may be used as a
figure of merit that has been adopted on a global scale exists at the present time.
Figure of merit on energy-saving may be categorized into the following two
types: using one figure of merit to represent the data center as a whole or using
multiple metrics as a set to represent the multifaceted aspects of data centers. For
example, in the case of the former, an energy productivity figure of merit (a ratio of
the amount of energy introduced to the data center versus the work processed by
the data center) is currently under study. No clear definition has been established,however, as details are still under study inside and outside of Japan.
(2) Figure of merit on energy-saving that may be used now
One figure of merit on energy-saving for data centers that may be used now is
the Power Usage Effectiveness (PUE) figure of merit, which compares the power
consumption of the ICT equipment that should be in operation to the power
consumption of the facility portion (air-conditioning, power source, lighting, etc.)
used to operate the ICT equipment. PUE is a figure of merit proposed by The
Green Grid (US) and its definition is as follows.

74

Ecology Guideline For the ICT Industry

PUE = power consumption of entire facility (ICT equipment + facilities) / power
consumption of ICT equipment
Based on this definition, one could say that a small PUE value could mean thatthe facilities portion of a data center has good energy efficiency.
The inverse of PUE is the Data Center Infrastructure Efficiency (DCiE).
Presumably, these two metrics could be used in parallel depending on theirapplication, such as the method of managing the figures.
PUE and DCiE are the figures of merit on energy-saving for data centers mostwidely adopted so far.
At the same time, there are those who point to issues with PUE and DCiE. One isthat the measurement methods are not always clearly defined. Another is that the
metrics do not consider differences in energy efficiency derived from efficiency of
the ICT equipment and operational proficiency.
(3) The status of studies at related organizations
In light of the current issues with PUE, The Green Grid and many otherorganizations are studying the development of better figures of merit onenergy-saving.
The Green Grid is studying measurement guidelines, numerical reporting and acertification system for PUE. Additionally, The Green Grid is involved indeveloping the Data Center energy Productivity (DCeP) metric for representing theenergy productivity of the entire data center, including not only facilities but also
ICT equipment, and an applicable alternative figure of merit (proxy).
Also, Japan's Green IT Promotion Council has entered into an MOU with The
Green Grid to pursue the development of an independent figure of merit onenergy-saving covering the entire data center including ICT equipment.
Moreover, under the EU's Code of Conduct on Data Centers, a guideline
compiled for data centers, PUE is adopted as a figure of merit on energy-saving for
facilities, while a productivity figure of merit is to be decided in consideration of
future trends. Furthermore, the US Environmental Protection Agency (USEPA)
uses Energy Usage Effectiveness (EUE: a ratio similar to PUE, but calculated using
a supply-side energy conversion) and, has also begun activities so as to rate theenergy efficiency of facilities.
(4) Data Center Figure of Merit on Energy-Saving under this Guideline
In light of current studies on figures of merit on energy-saving and the situationof global adoption, this Guideline preliminarily uses PUE, already adopted as a
figure of merit on energy-saving for the facilities portion, which serves as a usefulreference for data centers to perform CO2 emission reduction activities and fortelecommunications service providers to procure data center services. It ispreferred that data center operators measure energy conservation related data (e.g.
PUE with clear measurement conditions) and advance public disclosure. This75

Ecology Guideline For the ICT Industry

guideline will continue to revisit figures of merit in consideration of future trends
in studies on the issues inside and outside of Japan.
6.4 Outline of Figure of Merit on Energy-Saving(1) PUE and DCiE
PUE, currently an important figure of merit on energy-saving for data centers, is
as described in 6.3(2), and its inverse is DCiE (DCiE = 1/PUE).
Here, ICT equipment includes computers, network equipment, ICT support
systems (printers, etc.), storage, and telecommunications equipment. Facilities refer
to equipment not included under ICT equipment, namely, electrical power(converters, UPS, lighting, etc.), air conditioning (including cooling tower, coolingwater pump, humidifier, etc.), security equipment, building management systems
and the like. DCiE is simply the inverse of PUE; thus, articles subject tomeasurement are the same in both cases.
In the case that a data center uses other energy sources in parallel to electrical
power, use an energy conversion value to calculate PUE or DCiE. Specifically, use acrude oil equivalent value for the amount of energy consumed as defined by the
Energy Conservation Law.
(2) Measurement Methods for PUE and DCiE
A guideline set forth by The Green Grid exists for PUE and DCiE measurement
methods (measurement frequency, selecting measurement points, etc.). The
guideline indicates three levels (1 to 3). (For details see The Green Grid White
Paper Number 14 The Green Grid metrics: A detailed analysis of DCiE (DataCenter Infrastructure Efficiency).)
http://members.thegreengrid.org/japanese/gg_content/White_Paper_14_-_DCi
E_Detailed_Analysis_11.06.08_JP.pdf）(3) PUE and DCiE Measurement Results to be Disclosed and Methodology
The energy efficiency of data centers is believed to differ depending on thecharacteristics of the data center. Thus, in disclosing figures of merit onenergy-saving such as PUE or DCiE, the basic characteristics of a data center thatwould significantly impact energy efficiency need also be disclosed. As an attempt
at tentative uniformity in consideration of user convenience, specific disclosure
items should include, in addition to the actual PUE measurement values,
measurement methodology, data center location, room temperature and humidity
settings, duration of measurement, and redundancy configurations.
This guideline will not stipulate uniform measurement methods, but themeasurement methods (measurement frequency, measurement sites, etc.) used by
the data center should be disclosed.
Furthermore, The Green Grid has published a guideline* on the disclosure of
PUE measurement values. Refer to the following table for additional information
specified by the Council.
76

Ecology Guideline For the ICT Industry

In addition, items to be disclosed shall be added or change as deemed necessary.
* The Green Grid’s White Paper #22, “Usage and Public Reporting Guidelines for
the Green Grid’s Infrastructure Metrics (PUE/DCiE)” is available at the following
URL:
http://www.thegreengrid.org/~/media/WhitePapers/White%20Paper%2022%
20%20PUE%20DCiE%20Usage%20Guidelinesfinalv21.ashx?lang=en
Disclosure item
Actual PUE measurement values(average/highest/lowest)
Measurement
frequency
Measurement
Measurement
methodology
points

Basic
Characteristics

Duration of
measurement
Data center location
Room temperatureand humidity
settings
Redundancy
configuration

Example of Disclosure
1.86/2.08/1.69
once weekly
ICT equipment power consumption: UPS
Power consumption of entire facility: data
center power supply input
October 2007 to September 2008
Country, area (Kanto, etc.))
22℃/50-60%
N+1

PUE disclosure items

6.5 Implementation (See 4.3 (1) diagram)
6.5.1 Disclosure Method of Energy Conservation Related Data of Data Center
Data center operators shall report energy conservation related data (e.g. PUEwith clear measurement conditions etc.) to the Council and disclose that
information via such medium as the Council’s website. (PUE measurement results
to be disclosed in accordance with the disclosure items set forth in 6.4(3))
Furthermore, an outline of energy-saving efforts by data centers may besubmitted to the Council, and any submitted information will be publicly disclosed
via the Council website, or other medium.
Refer to the separate Council instructions concerning disclosure methodology forspecific energy saving data and other information on data centers.
6.5.2 Procurement by Telecommunications Service Providers of Data Center
Services
Telecommunications services providers seeking to procure data center services
shall refer to energy conservation related data of the data center disclosed in thisguideline, on the Council’s website and the like to formulate their procurement
standards, and procure the services by selecting a data center based on acomprehensive assessment together with required functions and processing
performance.
77Ecology Guideline For the ICT Industry

7. Assessment Standard Eco ICT Logo
7.1 Purpose
7.1.1 Purpose of Self-Assessment of Efforts
The status of efforts and achievements in reducing CO2 emissions made by
telecommunications service providers needs to be publicly disclosed (made visible)
in an appropriate and timely fashion so that external parties including users andother related parties may appropriately assess such efforts.
In light of such needs, the purpose of these endeavors is to encourage
telecommunications services providers to check the status of those efforts under
their own initiative and to enhance their efforts to be ecologically conscious and to
reduce their burden on the environment.
7.1.2 Indication of Eco ICT Logo
Telecommunications services providers shall display the “Eco ICT Logo” as a
medium for broad public disclosure depending on the result of appropriate
self-assessment of their actions to reduce CO2 emissions etc. and to indicate thestatus of such implemented actions.
The following entities may display the “Eco ICT Logo:”> Telecommunications services providers.
> A person who operates a telecommunications business defined under the
Telecommunications Business Act, other than Telecommunications services
providers.
> Neither of the above, but operating business related to telecommunications
services using substantial ICT equipment AND recognized by the Council.
7.2 Checklist
7.2.1 Purpose of the Checklist
The Council has prepared the Self-Assessment Checklist for CO2 Emission
Reduction Efforts by Telecommunications Services Providers (hereinafter, theChecklist) (see separate sheet) for telecommunications services providers to set
targets for reducing CO2 emissions and to use the checklist for self-confirmationand make their efforts visible to others.
The purpose is for telecommunications services providers to use this checklist to
perform self-assessments of the results of actions plans prepared and implemented
by individual companies and as a medium for public disclosure.
7.2.2 Checklist Assessment Items and Assessment Standards<Preparation of a Voluntary Ecological Action Plan>

78

Ecology Guideline For the ICT Industry[1] Has a voluntary ecological action plan stipulating various efforts directed at
reducing CO2 emissions been created and is it being executed?
 Is there a voluntary ecological action plan in place, which is aimed atpromoting ecological preservation activities such as the prevention of
global warming, reduction of waste and the promotion of reduce, reuse
and recycling activities?
[2] Does the ecological policy include specific efforts stipulating numericaltargets for the reduction of CO2 emissions?
 Does the voluntary ecological action plan include specific activities andnumerical targets?
Examples Reduce by the end of 2020 the amount of electricity used by ICT equipmentby 25%, compared to 1990 levels.
 Switch to green power generation, purchase green power certificates andthe like, so that green power accounts for 10% of electricity used.
 10% reduction on a year-to-year base employees’ use of private vehicles forcommuting by promoting the use of public transportation, bicycles andcar-sharing.
[3] Is the ecological policy documented and disseminated inside and outside thecompany? Does the company carry out activities to inform and enlighten its
employees? Is the company working to raise ecological awareness?
 Are employees informed of such plans through internal training eventsand the like?
 Is information disclosed outside the company or is information disclosed tointerested parties and other members of the general public when needed?
[4] Does the company disclose to the general public its activities and data suchas CO2 emission reduction?
 Is such information as progress reports, accomplishments and track recordof specific activities under the voluntary ecological action plan disclosed tothe public?
 Does that information continue to be publicly disclosed based on annual
reviews?
*May be substituted with the creation and disclosure of an ecological report,
CSR report, sustainability report, and the like.
Examples URL of the company's website where the status of specific actions taken inaccordance with the voluntary ecological action plan is disclosed
 URL of the company's blog where information on ecological activities isdisseminated on a continual basis

79

Ecology Guideline For the ICT Industry<Efforts Related to Procurement>[5] In regard to ICT equipment and data center services, has the company
prepared a procurement standard that takes energy conservation into
consideration? Is procurement carried out in accordance with the standard?
 Is there a procurement standard prepared in reference to this Guidelinethat relates to ICT equipment and data center functions the company plans
to procure?
 Are ICT equipment and data centers with advanced energy conservation
features being procured in accordance with an established procurement
standard?
[6] Is the company cognizant of energy conservation in procuring officeequipment, supplies and logistics (e.g., green purchasing)?
 Is the company implementing green purchasing?
 Are specific procurement measures taken in consideration of energy
conservation?
Examples Introducing fluorescent lamps and office equipment with low power
consumption.
 Prioritize procuring products and services minimizing burden on theenvironment from providers who make an effort to lower negativeenvironmental impact.
<Promotion Regime>[7] In relation to efforts to reduce CO2 emissions, has the company assigned aperson or department to be responsible for such matters?
 Has the company assigned a person or department to be responsible forpromoting these efforts, regardless of whether those resources are
dedicated or hold other concurrent responsibilities?
[8] Is there a regime in place using internal audits or other means to keep
appropriate track of the implementation of measures and achievement oftargets set forth in the voluntary ecological action plan? Is the internal audit
performed by a department other than the department that sets targets?
 Are member companies of industry groups auditing each other?
 Or does the company receive external audits or comments from third
parties?
Examples Member companies of industry groups audit each other.
<Other Ecological Activities>[9] Are ecologically-friendly efforts being made other than activities to saveenergy?
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Ecology Guideline For the ICT Industry

 Is the company involved in resource conservation in the office byconducting double-sided printing or printing on the flip side of alreadyprinted paper and trying to reduce waste? If so, specific activities shall be
indicated.
Examples Working to use double-sided printing and copying, reduce the amount of
paper and ink used, and reduce the amount of power used for printing.
 Working to decrease the number of pages printed by not printing out
unnecessary pages.
[10] Is the company involved in ecological preservation activities in collaboration
with local communities?
 Does the company work on a continual basis with society on activities
related to ecological preservation?
Examples Work jointly with regional organizations every month to pick up garbage
and increase plant coverage in local areas.
 Participate in community recycling activities to actively recycle.
 Participate in eco-cap activities and make contributions to society beyond
recycling efforts.
7.2.3 Review of the Checklist
The Council shall review this checklist and its items as appropriate in response
to: reviews of this Guideline; changes in policy relating to global warming
measures; revisions to laws and ordinances; the status of ICT service provision;
penetration of equipment and the like; and technological advances.
7.3. Eco ICT Logo
7.3.1 Method of Indication
In accordance with 7.3.2, telecommunications services providers may use on theirwebsite and printed matter the name of the logo and the “Eco ICT Logo” set forthin the reference section of the Guideline.
7.3.2 Usage Stipulations(1) Usage Standard
In using the name and “Eco ICT Logo,” disclosure by the means set forth in
7.4.2 must be followed.
(2) How to Obtain
The “Eco ICT Logo” may be downloaded in electronic format from theCouncil's website.
(3) The permissible scope of use of the name and “Eco ICT Logo” by a81

Ecology Guideline For the ICT Industry

telecommunications services provider
 The company's website
 The company's advertisements requested to be posted on a third party's
website E-mails sent by the company or by a third party at the request of thecompany Business cards
 Materials distributed in an electronic format
 Printed pamphlets, distribution materials, leaflets, mailings, etc.
 Projection data used in presentations(4) Reminders in Use of Logo
When using the name and “Eco ICT Logo,” telecommunications services
providers shall do so under the following conditions.
[1] Expenses shall be borne by the telecommunications service provider.
[2] The name and “Eco ICT Logo” must be used in their entirety, withoutchanging the aspect ratio or the color of the “Eco ICT Logo.”[3] When use of the name or the “Eco ICT Logo” by a telecommunications
services provider might possibly conflict with the intent of self-assessment
efforts to reduce CO2 emissions or conflict with public order or standardsof decency, or otherwise, the Council may advise the telecommunications
services provider of correction based on a judgment by the Council.
(5) Discontinuing Use of the Logo
[1] In the event a telecommunications services provider using the name or“Eco ICT Logo” fails to perform self-assessment of efforts to reduce CO2
emissions, the telecommunications services provider must promptly
discontinue use of the name and “Eco ICT Logo.”[2] In the event a telecommunications services provider does not comply withthe stipulations under 7.3.2 and rules regarding usage separately set forth
by the Council, the Council may remove the company from the Council’s
website and notify of the discontinuation of use of the name and “Eco ICT
Logo.”

7.4. Implementation
7.4.1 Assessment Methods[1] The telecommunications services provider shall perform self-assessment
based on the checklist as to whether the company is actively implementing
efforts to reduce CO2 emissions.
[2] If the telecommunications services provider is judged to be appropriately
implementing efforts indicated in the checklist, the telecommunications
services provider shall be responsible for describing an overview of specific82

Ecology Guideline For the ICT Industry

efforts being implemented in the checklist.
[3] Items 1 to 8 on the checklist are mandatory entries (must describe thecompany's efforts) and items 9 and 10 are recommended (free to list
information in checklist or not).
[4] In the event certification of an international standard (ISO 14001) relating toenvironmental management systems has been acquired, companies may
substitute check list entries as appropriate with an indication thatcertification has been acquired under the applicable assessment items and a
description of where that information is made be publicly available.
7.4.2 Public Disclosure Methods by Telecommunications Services Providers
Conducting the Efforts
The following information of telecommunications services providers involved inefforts complying with the checklist shall be publicly available through theCouncil’s website.
 Company name (personal name or trade name if an individual)
 URL and link to where the checklist is posted
Telecommunications services providers need to disclose the completed checklist
and provide sufficient information for a user or viewer to understand what sort ofefforts was made that apply to or comply with the checklist per the self-assessment.
(1) Submitting Necessary Forms & Information[1] Telecommunications services providers shall post the checklist preparedper 7.4.1(2) on their website and make a submission to the Council via theCouncil website.
[2] If a telecommunications services provider having information disclosed
on the Council’s website needs to revise targets aimed at reducing CO2
emissions or change specific effort within the effective period of disclosure,the telecommunications services provider shall follow the procedures
similar to those for the original Application as deemed appropriate via theCouncil website.
(2) Effective Period of Disclosure by the Council[1] Regarding results of telecommunications services providers’ specific efforts
toward targets aimed at appropriately reducing CO2 emissions, suchtargets need to be reviewed at least once a year, since continuity andimprovement contributes greatly to reducing CO2 emissions. Thus, theeffective period of disclosure by the Council shall be no longer than one
year and continue to the last day of December of each year.
[2] When self-assessment of efforts to reduce CO2 emissions is performed, achecklist is completed and submitted at some point between January 1 andthe last day of December. The effective period of disclosure by the Council
shall continue until the last day of December of the year disclosure began83Ecology Guideline For the ICT Industry

and shall not be calculated as one full year from the date of disclosure.
(3) Method of Renewing Public Disclosure by the Council[1] Telecommunications services providers shall submit necessary information
to the Council between October 1 and the last day of December of eachyear, receive confirmation for renewal and have disclosure by the Council
renewed.
[2] For renewal, a telecommunications services provider submits procedures
similar to those for the original report to the Council via the Council
website.
[3] If a telecommunications services provider does not report for renewal by
the last day of December each year, the Council may remove that company
from the list and cancel the company's usage of the name and “Eco ICT
Logo.”[4] Telecommunications services providers removed from the list disclosed by
the Council must promptly discontinue use of the name and “Eco ICT Logo”
on their own websites and printed mattes.
(4) Others[1] If a third party inquires about the disclosed contents regarding atelecommunications services provider on the Council’s website, the inquiry
may be routed to the relevant telecommunications services provider.
[2] The telecommunications services provider subject to the inquiry must
answer and respond in good faith.
Diagram of Logo for Reference
Eco ITC Logo design84Ecology Guideline For the ICT Industry

Attachment 1

Self-Assessment Checklist for CO2 Emission Reduction Efforts by
Telecommunications Services Provider
Telecommunications services provider:<Mandatory items>
Preparation ofavoluntary
ecologicalaction plan

1

2

3

4
Efforts
relating
toprocurement

5

6Promotion
regime78Assessment items
Has a voluntary ecological action plan
stipulating various efforts directed at
reducing CO2 emissions been created andis it being executed?
Does the ecological policy include specificefforts stipulating numerical targets for the
reduction of CO2 emissions?
Is the ecological policy documented anddisseminated inside and outside of thecompany? Does the company carry out
activities to inform and enlighten its
employees? Is the company working toraise ecological awareness?
Does the company disclose to the generalpublic its activities and data such as CO2
emission reduction?
In regard to ICT equipment and data
center services, has the company prepareda procurement standard that takes energy
conservation
into
consideration?
Isprocurement carried out in accordancewith the standard?
Is the company cognizant of energy
conservationinprocuring
officeequipment, supplies and logistics (e.g.,green purchasing)?
In relation to efforts to reduce CO2
emissions, has the company assigned aperson or department to be responsible forsuch matters?
Is there a regime in place using internal
audits or other means to keep appropriate
track of the implementation of measuresand achievement of targets set forth in thevoluntary ecological action plan?

<Recommended items>
Other
Are ecologically-friendly efforts being
9
ecologicalmade other than activities to save energy?
activities
Is the company involved in ecological
10 preservation activities in collaboration
with local communities?

85

Implementation, measures taken

Ecology Guideline For the ICT Industry

8.

Reference Material

8.1

List of Members of the ICT Ecology Guideline Council (2009)
Omitted.

8.2

List of Members of the ICT Ecology Guideline Council (2010)
Omitted.

(V20R11)86