SEforALL Workshop, Japan
February 14, 2017

Features and Characteristics of
New Building Energy Standards of Japan
Masato Miyata
miyata-m92ta@mlit.go.jp
National Institute for Land and Infrastructure Management
Ministry of Land, Infrastructure, Transport, and Tourism
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Outline

1. Brief Overview of Energy Policy in Japan
2. Evaluation Method (Commercial Buildings)

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 20172

1. Brief Overview ofEnergy Policy in Japan

3
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Status of energy consumption
To stabilize the energy demand and supply in Japan, it is essential to takemeasures to reduce energy consumption in the civilian sector.
Million kl in crude
oil equivalent（Unit: trillion yen, price in 2005）

Real GDP
1973-->2013
increased by 2.5 times

Final energy consumption

1.3-fold
Transport sector
Commercial sector
Residential sector

22.5%(82 million kl)

20.6%

1.8-fold(76 million kl)

14.0%(51 million kl)

Industrial sector

2.9-fold
2.0-fold

43.0%(158 million kl)

0.8-fold[Sources] Comprehensive Energy Statistics, Annual Report on National Accounts,
EDMC Handbook of Japan's & World Energy & Economic Statistics
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 20174

Our Goal (Civilian Sector)
Industrial

Residential

Commercial

Transport

Othermillion t-CO2

1400
1200

101

1000

225

800
600

279
201

400
200

40%
Reduction

73
163
168
122

429

401

2013

2030

0
[Sources] Ministry of Economy, Trade and Industry: Long-term energy supply and demand outlook
July, 2015
5
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Targets
High

BEI
0.00
0.25

ZEB

BEI = Designed primary consumption/ Reference primary consumption (2013)

Nearly ZEB• Realize ZEBs in newly constructedpublic buildings by 2020
• Realize ZEBs in average newly
constructed public and privatebuildings by 2030
[source] Japan’s Strategic Energy Plan (April 2014)

0.50

ZEB ReadyMin.

The Act on the Improvement of Energy Consumption Performance of Buildings

0.80
1.00

Certification Standards(new built buildings, retrofit buildings)

Energy Efficiency Standard(mandatory from 2017)

6
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Definition and evaluation methods of ZEBs••••

The goal is to achieve net zero energy consumption by creating energy (e.g., via
solar power) while fulfilling the higher than 50% energy saving (ZEB Ready).
If energy savings of at least 75% is achieved the Nearly ZEB status is granted.
If energy savings of 100% or more is achieved, the ZEB status is granted.
The above energy saving rate should be evaluated at the design phase.
ZEB Ready

Nearly ZEB(Energy saving of 50% or more) (Net energy saving of 75% or more)

ZEB(Net energy saving of 100% or more)50%
reduction
Airconditioning
Ventilation

Lighting
Hot water supply

Elevators

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 20177

Volume of energy supply

Definition and evaluation methods of ZEBs

Energy independence
ZEB

Energy savings

Reduction of
100% or more(Net Zero)④ IntroductionofrenewableenergyReduction of
75% ormore

NearlyZEB① Load reduction (improving heat insulation and solar
shading, etc.)② Use of natural energy③ Equipment and systems with improved efficiency ofthe equipment

Reduction of 50% or more
ZEB
Ready

Benchmarkprimary energy
consumption

Reduction of
50% or more

Volume of energy consumption

Reference Building
BEI = 1.00

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 20178

History and Future of the Building Energy Standard
1979
1980

1992
1993
1999
2009

The Energy Conservation Law was established.
The Building Energy Standard was established according to thelaw. No obligation was taken on building owners. So the Standard
was similar to recommendation.
The Standard for housings was revised owing to the Gulf War.
The Standard for buildings was revised as well as for housings.
The levels of the Standard were enhanced because of the Kyoto
Protocol.
Reporting on the Standards was mandatory except smallbuildings and housings.

2013

The whole Standard was revised. Primary energy consumption isneeded as criterion index, in addition to envelope performance.

2020

Compliance to the Standard will be mandatory for all new buildings
and residences.
9

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Mid-term summary and progress schedule• Compliance to the Standard will be mandatory
Measures related to houses and buildings in order to realize low-carbon society

FY2012FY2013

FY2014FY2015FY2016FY2017FY2018FY2019FY2020

FY2030【Promote Construction of Houses and Buildings with Higher Energy Efficiency Performance】
・Evaluation and Labeling system of energy efficiency
Revise Housing
・Promote construction of zero-energy housing
Performance
・Promote construction of buildings which utilize advanced CO2 emission reduction technologies
Indication Standard,
etc.
・Certify and promote houses and buildings with high energy efficiency performance(Certification system of low-carbon buildings), etc.
【Assure Minimum Energy Efficiency Performance of Houses and Buildings】

Problems to be solved for realizing
mandate of energy efficiency
standards
Provide information about
necessity and reasons ofregulations
・Consider balances between
regulations on houses and buildings
in Japan and that in other sectors
・Give sufficient attention to small
to medium sized home builders

Large

Mandatory compliance（No less than 2,000㎡）

Mandatory reporting（No less than 2,000㎡）

MediumMandatory reporting

Small（300～2,000㎡）

Mandatory Compliance（300～2,000㎡）

Obligation to make efforts（Less than 300㎡）

Mandatory
Compliance（Less than 300㎡）【Improve Energy Efficiency of Existing Houses and Buildings】【Increase Capabilities of Individuals and Organizations】
・Hold training courses of insulation techniques for small to medium sized firms
・Consider developing an evaluation method of energy efficiency of traditional wooden houses
・Assure and improve quality of building materials and equipment
・Increase capabilities of individuals and organizations who assess energy efficiency, etc.

Maintain policies to increasecapabilities of individuals andorganizations related to housing
and building energy efficiency, after
mandating standards.

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201710

The Act on the Improvement of Energy Consumption
Performance of Buildings
Review
Process

March 24, 2015
June 4
July 1
July 8Cabinet decision
Unanimously passes in House of Representatives
Unanimously passes in House of Councilors, and is adopted
Promulgation of law

Promulgation of Cabinet/ministerial ordinance etc.
Advisory measures within 1 year of promulgation of law (April 2016)

Implementation Schedule

1. Announcement of basic policy
2. Mandating efforts of construction clients/owners etc., and business operators in selling and leasing of building
3. Performance Improvement Planning Approval System (Floor space ratio exceptions)
4. Display System
5. Preparations for Registered Energy Conservation Evaluation Institutions and Registered Energy Conservation
Performance Appraisal Institutions (applying for registration etc.)

Regulatory measures within 2 years of promulgation of law (Planned for April 2017)
1. Instruct/advise construction clients, designers/builders, construction material manufacturers
2. Mandate/evaluate compliance, register etc. Registered Energy Conservation Evaluation Institutions
3. Notification System, instructions/orders etc. via administrative agencies with jurisdiction
4. Minister-authorization system for special structure/equipment, register etc. Registered Energy Conservation
Appraisal Institutions
5. Housing Top-Runner Program*Abolish Energy Conservation Act-based regular report system for renovations, remodeling, installations andrepairs and notification system
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201711

Mandatory Compliance with Standards
by Construction Clients of Specified Buildings• Section 11 Mandatory Compliance with Standards– When construction client attempts to undertake specified
construction (*1), the specified building （Limited to nonresidential）must comply with the building energy efficiency
standards.
– The stipulation in the preceding paragraph is one of relevant
provisions of Building Code in Japan.
*1 Specified construction
1. New construction on a specified building (*2)
2. Extension/renovation on a specified building (The scale of the extension/renovation for non-residential
portions shall only be for the Cabinet-ordered scale or larger [planned to be 300 m2].)
3. Extension on buildings other than specified buildings (The scale of the extension for non-residential
portions shall only be for the Cabinet-ordered scale or larger [planned to be 300 m2], and when thebuilding in question will become a specified building after the extension construction.)*2 Specified buildings
This refers to buildings that are at the Cabinet-ordered scale or larger (planned to be 2,000 m2) and are ofa scale large enough to particularly require the attainment of energy consumption performance for a nonresidential area.

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201712

New Building Energy Conservation Act
Present status
Large-scalebuildings(2,000 m2 or
more)Mediumscalebuildings(From 300
m2 to lessthan
2,000 m2)
Small-scalebuildings(Less than
300 m2)

Nonresidential

Residential
Nonresidential

Residential

Residential
Construction
Client(Housing
Top-Runner)

Mandatory Notifications【Instructions/orders etc. whenmarkedly insufficient】

Mandatory Notifications【Recommendations whenmarkedly insufficient】

Mandatory Role
【 Recommendations/orders etc.
when deemed necessary 】

April 2017
Mandatory Compliance【Synched with building
certification procedures】

Mandatory Notifications【Instructions/orders etc. when
deemed necessary withoutcompliance with standards】

Mandatory Role
【 Recommendations/orders etc.
when deemed necessary 】

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201713

Scheme for Evaluation of Energy Conservation Compliance andBuilding Certification/Inspection From April 2017
< District construction
surveyor >Building Code

Designappraisal＜ Applicant , construction clients ＞
Application for
construction
certification

Application forevaluation ofcompliance with energy
efficiency standards

Compliance evaluation
noticeSubmit to district construction survey or designatedcertification and inspection organization

Certification document
Certification document
cannot be issued without
an evaluation noticeFinalinspection＜ Administrative
authorities withjurisdiction ＞

Evaluation ofcompliance withenergy efficiency
standards
Building Energy
Efficiency Act

Construction begins
Construction complete
Application for final inspection
Certificate of compliance
Use of building

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201714

Certification Standards (Article 29)• When carrying out new construction and renovations for energy
conservation(*), certification of compliance with guidelines thatexceeds the level of energy conservation standards (BEI<=0.80)
may be received.
– (*) Extensions, renovations, improvements/remodeling,
installation of equipment such as A/C, repairs

Renovation that has
been certified may
receive special exception
status, such as for floor
space ratio

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201715

Labeling System (Section 7)
Section 7 Emphasize Energy
Conservation Performance ator above Level of Standards• Third party verification(BELS) label with stars.

Design primary energy consumption amount of this building 25% less

Less

More

★★★★★

BEI<=0.60★★★★

BEI<=0.70★★★

BEI<=0.80★★

BEI<=1.00★

BEI<=1.10- Primary energy consumption amount standards- Envelope Performance

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201716

Labeling System (Article 7)[source] https://www2.hyoukakyoukai.or.jp/bels/info/jireishokai.php
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201717

Labeling System (Article 7)[source] https://www2.hyoukakyoukai.or.jp/bels/info/jireishokai.php

18
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

2. Evaluation Method(Commercial buildings)

19
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Old Energy Standard for Commercial Buildings (〜2013)• The standard used two indicators for assessing the energy
performance of a building.
• Reporting on the standards is mandatory except smallbuildings and housings.
1. For the performance of the building envelope– Perimeter Annual thermal Load (PAL)
2. For the performance of the building equipment– Coefficient of Energy Consumption (CEC)• CEC/AC : CEC for Air-conditioning• CEC/V : CEC for Ventilation• CEC/L : CEC for Lighting• CEC/HW : CEC for Hot water supply• CEC/EV : CEC for Elevators

Perimeter Zone
20

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Revised Energy Efficiency Standard
for Commercial Buildings (2013- )Old Standard

New Standard• There are 5 criterionindices for eachequipment and it is not
an index for wholebuilding performance.

v New index: PAL* andPrimary energy
consumption of 5 equipment(AC, V, L, HW and EV).

• Calculation method havenot been updated forabout 30 years and somenewly technique cannot
be evaluated.

v New calculation method isdeveloped, which canestimate the energy
consumption moreaccurately.

• The values for the PAL
and CEC depend on thebuilding typev Criterion value is definedaccording to types of room.

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201721

Index : Primary Energy Consumption

Primary energy
consumption amount= air-conditioning system+ ventilation system+ lighting system+ hot water supply+ elevator primary+ other (Plug load)- PV andcogeneration system

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201722

Calculation methodologies• NILIM and BRI have developed new methodologies forevaluating the primary energy consumption.
• The methodologies are expected to be suitable for the
mandatory standard.
– Easy to understand evaluation logic (simplified and streamlined)– Easy to understand evaluation results– A fair, reliable, and transparent evaluation logic– Streamlined and efficient evaluation and review• Provision of evaluation-assistance simulation tools– Defined and unified evaluation rules• Same results regardless of who makes data entries• Same results regardless of who performs a review

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201723

Flow of Calculation of Primary Energy Consumption
for Commercial Buildings

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201724

Reference Energy Consumption
Designer inputs
Designed Specification(geometry, equipment spec)

Climate Zone
( 8 zones )PresetClimate Data

PresetReference Specification
Defined by the standard 2013•

Calculation
MethodBy NILIM and BRI

Compare these consumptions
under same conditions.

Operation
Schedule

Room Type(201 types)

Designprimaryenergyconsumption

Calculation
MethodBy NILIM and BRI

Reference
primaryenergyconsumption

BEI（Building Energy Index）= Design consumption / Reference consumption
25

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Example of the room types
No.

Type of room
(Office)

No.

Type of room
(Hotel)O-1

Office room

H-1

Guest room

O-2

Office higher heat

H-2

Guest room’s bath room

O-3

Meeting room

H-3

Banquet higher heat

O-4

Tearoom

H-4

Banquet hall with medium heat emission

O-5

Central control

H-5

Banquet hall with low heat emission

O-6

Locker room

H-6

Restaurant

O-7

Canteen

H-7

Lounge

O-8

Hall

H-8

Lounge open only at night

O-9

Lobby

H-9

Shop

O-10 Toilet

H-10

Office room (24 hours)

O-11 Smoking room

H-11

Office room (closed during night)

H-12

Canteen for employees

H-13

Locker room

26
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Measurement of the Internal Heat Gainin Actual Office Buildings
20

20
Aビル
Bビル(7F)
Cビル(4F)
Cビル(5F)
Dビル(3F)

照明消費電力密度[W/㎡]

16
14

Aビル
Bビル(7F)
Cビル(4F)
Cビル(5F)
Dビル(3F)18

コンセント消費電力密度[W/㎡]

18

平日

12
10
8
6
4
2

16
14

平日

12
10
8
6
4
2

0
00

03

06

09

12

15

18

21

00

Internal heat gain (lighting)

0
00

03

06

09

12

15

18

21

00

Internal heat gain (OA equipment)

0.14
Aビル
Bビル(7F)
Bビル(8F)
Cビル(4F)
Cビル(5F)
Dビル(3F)在室人員密度[人/㎡]

0.12
0.10
0.08
0.06
0.04
0.02
0.00
00

03

06

09

12

15

18

21

00

occupancy
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201727

Example of Assumptions for the Room Usage
Building Type

OfficeType of room

Operation

Internal heat

Time for AC

gain (lighting)[h/year][W/㎡]

Internal heat Internal heatgain

gain (OA(metabolism)

equipment)[person/㎡][W/㎡]

Fresh airIlluminanceintakelevel[m3 /m2 h][lx]

OfficeRoom

3374

12

0.1

12

5.0

750

MeetingRoom

2410

10

0.25

2

12.0

500

30

0.5

0

15.0

ComputerRoom
TeaRoom
Canteen

3374
2410
723

CentralMonitoringRoom

8760

Corridor

3133

LockerRoom
Lobby
ToiletSmokingRoom
KitchenIndoorParking

MechanicalRoom
ElectricalRoom
Kitchenette

StorageRoom
CopyRoom

GarbageStorage

3374
3133
3133
3133

0
0
0
0
0
0
0
0

12
10

0.1

0.25

30

2

20

0.15

30

15

0.03

0

15

0.03

15
15
15

0
0
0
0
0
0
0
0

0.3

0.03
0.03

0
0
0
0
0
0
0
0

0
0
0
0
0
0
0
0
0
0
0
0

5.0

12.0
4.0
4.0
2.5
2.5
2.5
2.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0

The information in this table is based on the results of a review in the MLIT
Building Code Development Promotion Project (22 survey items).
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

…

750
300
500
500
300
200
500
300
300
750
150
200
200
300
300
500
150

28

Standardized room-use conditions(Office room in office building)
Reference value for heatgeneration density
Lighting: Old Standards
25 W /m2 → 12 W/m2
Human body: Old Standards
0.2 persons/m2 → 0.1
persons/m2
Equipment: Old Standards
10 W/m2 → 12 W/m2

共通

空調

カレンダパターン 年間空調

在室者数
参照値

機器発熱
参照値

新鮮外気
導入量

年間換気
時間

基準設定
換気風量

基準設定
換気回数

年間照明
点灯時間

基準照明
消費電力

基準設定
照度

[h /年][W /㎡][人/㎡][W /㎡][m 3 /㎡・h ][h /年][m 3 /m 2 h ][回][h /年][W /㎡][lx]3374

1 2 .0

0

0 .0

-

3133

1 6 .3750

空調時刻（時間）

0 .1

1 2 .0

5 .0

人体発熱
参照値

待機電力
参照値

作業強度
指数

241

1

7

21

(1 4 )

2

51

2

-

-

(0 )

[W /㎡][W /㎡]

3

73

3

-

-

(0 )

1 1 .93 .0

照明発熱比率スケジュール

Weekdays

-

(0 )

0

1

8

21

(1 3 )

[-]

2

-

-

(0 )

基準設定
換気方式

2

-

-

(0 )

3

3

-

-

(0 )

-

3

-

-

(0 )

50

50

0
3

6

9

12

15

Lighting

18

21 24

[日]

0 .6 9

基準設定
器具形式

基準設定
光源

C

FH F3 2

3

6

L /人日

9

12

15

18

21 24

3

6

9

12

15

18

21 24

11

12

13

14

15

16

17

18

Equipment
19

20

21

22

23

100

100

100

100

100

100

100

100

100

100

100

100

100

0

0

0

0

100

100

100

100

50

100

100

100

100

100

100

100

80

0

0

0

3

4

5

6

7

8

0

0

0

0

0

0

0

100

照明発熱比率

0

0

0

0

0

0

0

Human body

0

10

2

平日

人体発熱比率

0

0

0

0

0

0

0

0

100

100

100

100

60

100

100

100

100

100

50

30

20

0

0

0

機器発熱比率

25

25

25

25

25

25

25

25

100

100

100

100

80

100

100

100

100

100

100

50

50

25

25

25

人体発熱比率スケジュール

機器発熱比率スケジュール

100

100

100

50

50

50

0
3

6

9

12

15

18

21 24

3 .8

曜日等
条件

9

1

0

241
基準設定
湯使用量

0
0

0

年間給湯
日数

機器発熱比率スケジュール

500Sundays/Holidays

-

100

0

基準設定
保守率

照明点灯時刻（時間）1

人体発熱比率スケジュール

ン
室同時使用率
１

室
使
用
パ
タ

全圧損失[P a]100

照明発熱比率スケジュール

Saturdays

基準設定

換気時刻（時間）

100

0

給湯

照明発熱
参照値

1

室
使
用
パ
タ

照明

時間

A
室使用パターン別
年間日数

空調以外の換気

曜日等
条件

0
0

0

0

0

0

0

0

0

24

0

0
17

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

ン
室同時使用率
２

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

照明発熱比率

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

人体発熱比率

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

機器発熱比率

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

0

0

18

0
19

0
20

0
21

0
22

Standby power
0
0
0
0
0
0
considered

24
23

土曜日

0

0

0

0

0

0

0

0

0

0

0

0

0

0

25

25

25

25

25

25

25

25

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

0
0

29

Measurement of Actual performance of Equipment• In order to estimate the primary energy consumption
accurately, NILIM and BRI measured the actual
performance of the building equipment in several
buildings and developed a method to estimate the actual
performance based on manufacturer catalog data.
Chiller 1H_R-1
in Office 1H
事務所1H

1.4

1.4

Line: manufacturer catalog data

1.2

Ratio
of Energy
最大入力比（冷房）

Ratioof Capacity
最大能力比（冷房）

Chiller in
Office 1H
事務所1H
1H_R-11
0.8

Plot: Actual measured data

0.6
0.4

×0.95

(n=532)
0

5

10

15
20
25
冷却水入口温度

30

35

40

1.2

×1.07

1
0.8
0.6
0.4

(n=544)
0

5

10

15
20
25
冷却水入口温度30

Inlet chilled water temperature

Inlet chilled water temperature

Cooling Capacity

Energy Consumption

35

40

30
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Calculation flow (air-conditioning system)
Climate zone

Room type, Floor area

Database ofclimate data

Database ofstandard schedules

Temperature, humidity
solar radiation
Input: building envelope- Floor area of rooms,
outdoor wall area,
window area, direction ofwalls and windows,
shading factor, etc.

Input: equipment- Air-handling units’ capacity,
supply air volume, energy
consumption, control system(CAV or VAV), economizer- Secondary pumps’ rated flow
rate, energy consumption,
control system (CWV or VWV)
- Heat source equipment’s
capacity, energy consumption

Coefficients for load calculation

Load
conditions

Coefficients
Performance curves ofheat source equipment

Calculationof dailyheat gain

Estimationof dailyheat load

Performance
curvesa) Heat load calculation
Daily roomheat load

Energy of
air-handling units

Calculationof energy of
air-handlingunits

Appearance
frequencyof heat load

Heat loadof pumps

Calculation ofenergy ofsecondary pumps

Heat loadof heat source

Calculationof energy ofheat source
equipment

Energy ofsecondary pumps
Energy ofheat source equipmentb) Energy calculation
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201731

Concept of Room Heat Load Calculation (1)• Daily heat loads of each room QrL,j are calculated using steadystate heat gain QrG,j .
!!",! ! = ! !! !!!",! ! + !!

• Two kinds of heat gain QrG,j are taken into account:– Heat gain through exterior walls and windows as a result of thetemperature difference= Overall heat transfer coefficient of walls and windows
x area x indoor-outdoor temperature difference– Heat gain through windows as a result of solar radiation= Solar heat gain coefficient x area x shading coefficient
x solar radiation

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201732

Concept of Room Heat Load Calculation (2)•••Coefficients aj and bj are coefficients for converting static heat gain to
dynamic heat load.
These coefficients are determined by using the dynamic thermal load
calculation program NewHASP.
These coefficients are dependent on the zone, room use, and season
and on the use of air-conditioning the previous day.

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201733

Concept of Energy Consumption Calculation• Primary energy consumption of the air-conditioning system.
!",$% = !",$%,$'( (*+,,- ) + !",$%,0(10 (*+,,- ) + !",$%,234 (*+,,- )•The concept used to calculate these values are the same.
– The appearance time of each part load ratio (PLR) band is calculated– The energy consumption of the equipment on each PLR band is calculated
by multiplying the appearance of the load and the energy input, which differs
depending on the control system introduced.

2500"
2000"
1500"
1000"
500"

5"
4"

25"

In"case"of"variable"air"volume""
In"case"of"constant"air"volume"(Energy(Consymop:on([GJ]

Appearance"[h]"Energy(Input(([kW]

Appearance(Frequency([h]

3000"

3"
2"
1"
0"

0"
PLR"
PLR"
PLR"
PLR"
PLR"
PLR"
0"*"0.2" 0.2"*"0.4" 0.4"*"0.6" 0.6"*"0.8" 0.8"*"1.0" 1.0"*"

Appearance frequency of load(from load calculation results)

PLR"
PLR"
PLR"
PLR"
PLR"
0"*"0.2" 0.2"*"0.4" 0.4"*"0.6" 0.6"*"0.8" 0.8"*"1.0"

PLR"
1.0"*"

Energy input(from the equipment characteristics database)Energy"ConsumpHon"

20"
15"
10"
5"
0"
PLR"
PLR"
PLR"
PLR"
PLR"
0"*"0.2" 0.2"*"0.4" 0.4"*"0.6" 0.6"*"0.8" 0.8"*"1.0"

PLR"
1.0"*"

Primary energy consumption(Load appearance hours
x power consumption)

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201734

Information Disclosed by NILIM and BRI• Official Guides• BRI’s website provides technical information on the
Energy Efficiency Standards:
http://www.kenken.go.jp/becc/index.html– Links to various support tools– Instructions for the tools• How to use
https://www.youtube.com/watch?v=lL1cqCkbFaE
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201735

Web-based Simulation Tool for Compliancewith 2013 Energy Efficiency Standard
Design documents

Computational engine
on cloud computing platforms
XML files

Specification Input Sheet

Calc. results

BRI Website
Download- Excel Sheet- Manual- Interface of
the web-based
simulation tool

UploadCalculation
Results

Input the productspecification of thebuilding
equipment
to the Excel file.

Flow for evaluation of a building’s primary energy
consumption in commercial buildings

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201736

Simplified Approach••

An alternative simple evaluation method: the Model Building Method.
Shapes and room uses are considered for each model building use.
– Primary energy consumption is calculated and evaluated by applying
typical specifications for the building envelope and the equipment requiring
calculation to the model building.
Conventional calculation method
The area of each room and thespecifications for the envelope andthe equipment are entered.
Building to be evaluatedModel Building Method
Enter only the main
specifications forthe envelope andthe equipment to
be used in themodel building.

Model building

Web-based programfor primary energy
consumption
calculation

Design value by theconventional method
Baseline value by theconventional method

BPIm
BEIm
Design value by Model Bldg Method
Baseline value by Model Bldg Method

37
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Model Building Method Input-assist Tool

38
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Air-conditioning
OA equipment
Elevators

Ventilation
Lighting + OA
Unknown

Lighting
Hot water supply

6,000

5,000
4,000
3,000
2,000
1,000

OfficeRestaurant

Hotel

Hospital

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Calculated

ActualCalculated

ActualCalculated

ActualCalculated

ActualCalculated

0

ActualAnnual Primary Energy Consumption [MJ/m2]

Application to actual buildings

School39

Information Disclosed by Building Research Institute• Building Research Institute’s website provides technicalinformation on the Energy Efficiency Standards:
http://www.kenken.go.jp/becc/index.html– Announcement of an update of the program– Links to various programs– Input sheet (Excel sheet) and sample sheet– Instructions for the program (Building ResearchInstitute document)• Rule book on how to create an input sheet– Details of baseline room-use conditions– Drawings of the model building, etc.
– Information on intermediate and output files from theprogram
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201740

Energy Efficiency Standard for Residential House
Index
1980~

S55 Standard (S = “Showa” Era)

1992~

H4 Standard (H = “Heisei” Era)

1999~

H11 Standard (S = “Heisei” Era)2013~

New Standard

Envelope Performance
1.Heat Loss Coefficient
2.Solar Shade Coefficient
Envelope Performance
1.Heat Loss Coefficient
2.Solar Shade Coefficient+
Primary Energy Consumption• Revised standard consists of ...
– Envelop standard• Mean U value (Insulation factor)• Mean η value (Sun shading factor)– Energy Performance Standard• Designed annual energy consumption
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201741

Mean U Value[W/m2K][m2](A) Wall

U Value×Area×H Coeff.

(B) Ceiling

U Value×Area×H Coeff.

(C) Floor

U Value×Area×H Coeff.

(D) Opening(Window & Door)U Value×Area×H Coeff.

(B)

(C)

（+
Example of H Coeff.

Total Heat Loss [W/K]÷ Total Area [m2]Mean U Value [W/m2K]
Zone
Reference Value

1
0.46

2
0.46

(D)

(A)

3
0.56

Outside
Type

Crawl
Space

H Coeff.

0.7

4
0.75

5
0.87

6
0.87

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Unit
next door(apartment)
0.05 or 0.15

7
0.87

8
－

42

Flow of Calculation of Primary Energy Consumption
for Residential House

EC for Heating＋
EC for Cooling＋
EC for Ventilation＋
EC for Lighting＋
EC for DHW＋
EC for Appliances

DEC for Heating＋
DEC for Cooling＋
DEC for Ventilation＋
DEC for Lighting＋
DEC for DHW＋
DEC for Appliances－
Electricity Generation
by PV and CG

EC for theReference House

DEC for the
Evaluated House

Specificationof the evaluated house

Efficiency
Installation of highefficiency equipment

Reference Specification

Common conditions (Climate, Floor Area)

Load Reduction

・Insulation
・Solar Shading
・Natural Ventilation
・Ventilation with Heat
Exchanger
・Light Control
・Low Flow Tap
・Insulation of Bathtub・Solar Water Heater

・Specifications of Appliances are given
under some assumption for Reference
and Designed evaluation.
・Installation of
Photovoltaic and Co-generation system

EC : Energy Consumption
DEC : Designed Energy Consumption

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201743

Example of Evaluation (Residential House)
Common conditions (Tokyo, 120m2)
Specificationof the evaluated house
Envelope
H11 Standard Level
Heating/Cooling
Normal Spec. A/A Heat Pump
Ventilation
Normal Type

Designed
EC

18.2GJ for Heating& Cooling

17.6GJ for Heating& Cooling

4.6GJ for
Ventilation

4.6GJ
for Ventilation

10.8GJ for Lighting

8.2GJ for Lighting＋＋

25.2GJ for DHW

20.4GJ for DHW＋＋

21.1GJ for
Appliances

21.1GJ
for Appliances

Appliances
Normal(Value is defined)

0GJ Electricity Generation
by PV and CG

PV
Not Installation＋＋

Lighting
Use
of Incandescent Lighting
DHW
Normal Combustion
DHW System
Appliances
Normal(Value is defined)

EC : Energy Consumption

Reference
ECET

79.9 GJ
Reference House

Specificationof the evaluated house
Envelope
H11 Standard Level
Heating/CoolingHigh Spec. A/A Heat Pump
Ventilation
Normal Type＋＋

Lighting
No Useof Incandescent Lighting
DHW
High Efficient
DHW System－

71.9GJ
Evaluated HouseESTET ÷EST = 0.9 < 1.0

Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 201744

Summary• The building energy standard was revised in April 2013.
– Primary energy consumption is needed as criterion index,
in addition to envelope performance.
• Until 2020, compliance to the standard will be mandatory for
all newly built buildings and housings.
– From April 2017, compliance with the standard will bemandatory for large scale non-residential buildings.
• NILIM and BRI have developed the on-line calculation tools
for the new energy standard and certification system.

45
Masato Miyata, NILIM, Japan, miyata-m92ta@mlit.go.jp, SEforALL Workshop, February 14, 2017

Model Building Method Input Support Tool Ver. 2 Input Manual (20160624 Edition)

Reference A. Operation of Model Building Method Input Support Tool
1)

Access method

The model building method input support tool is a Web program operated on the Web browser. First, visit
the webpage of Building Research Institute, Japan and access the site entitled “Engineering Information
Concerning Energy Consumption Performance of Buildings”. Press the button entitled “Use the Modelbuilding Method Input Support Tool Ver. 2.1” which is located in “5.1 Program and Explanation based on
2016 Energy Conservation Standards” of the above-mentioned site, and you can have access to the tool.
You can also download the “model building method input sheet” for supporting the calculation from thissite.
Engineering Information Concerning Energy Consumption Performance of Buildings
Building Research Institute, Japan (cooperation: National Institute for Land andInfrastructure Management of Ministry of Land, Infrastructure, Transport and Tourism,)

List of Contents Posted
1. Introduction
2. Update history
3. About calculation support program
4. Matters concerning residential buildings
4.1 Program and engineering information based on energy conservation standards of 2016
4.2 Program and engineering information based on energy conservation standards of 2013
5. Matters concerning non-residential buildings
5.1 Program and engineering information based on energy conservation standards of 2016
5.2 Program and engineering information based on energy conservation standards of 2013
5.3 Other tools
6. Reference information
6.1 Link
6.2 Support

1. Introduction
This home page publicizes engineering information concerning energy consumption performance (including
performance of envelope) based on the following public notices. This engineering information was summarized
mainly by National Institute for Land and Infrastructure Management of Ministry of Land, Infrastructure, Transport
and Tourism; Building Research Institute, Japan; and Japan Sustainable Building Consortium working with
university professionals and industrial practitioners.

Fig. A.1 Engineering information site concerning energy consumption performance of buildings
http://www.kenken.go.jp/becc/indes.html
5.1 Program and engineering information based on energy conservation standards of 2016

Model building method

Use the Model Building Method Input Support Tool Ver. 2.1
Above program is linked to
Old version (Ver. 2.0.0)

http://model.app.lowenergy.jp/

http://model.prev.lowenergy.jp/ (kept publicized until October 31, 2016)● Model building method input sheet Ver. 2 (ZIP file approx. 101 KB) updated on June 2, 2016
To prevent errors, “sheet protection” is enabled. You can unlock it by inputting the password (kenken); however, unlock it at yourown responsibility.
●Program manual (engineering information webpage concerning the evaluation method for energy consumption performance of
non-residential buildings)

Fig. A.2 Access to the model building method input support tool1Model Building Method Input Support Tool Ver. 2 Input Manual (20160624 Edition)

Use of the following browsers is recommended.
Internet Explorer®

Version 8 or later

Firefox®

Latest version
TM

Google Chrome

Latest version

With browsers other than the above, information may not be accurately reproduced. Confirm your Web
browser and its version before using this tool.
When you access the tool, the “Licensing conditions” window is displayed. Read them carefully and press
the “Consent to the licensing conditions” button only if you consent to them before using the tool.

Licensing conditions
If you consent to the following conditions, click the “Consent to the licensing conditions” button.
1. You are prohibited from modifying part or whole of this software or analyzing this software by reverse
engineering, reverse compiling, reverse assembling, etc.
2. You are prohibited from distributing part or whole of this software through communication lines, etc. orfrom assigning, selling, leasing or licensing this software to third parties by reproducing this software withany media.
3. The developer, etc. of this software is exempted from responsibility for any damage, loss, etc. caused byactions such as using it with equipment or programs other than those specified by the restriction expressly
stated in this service and modifying this software in violation of clause 1 above.
4. The developer, etc. of this software disclaims responsibility for warranty and claim concerning thissoftware.

Not consent

Consent to the licensing
conditions

Fig. A.3 Licensing conditions

2

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Total of multiple
usagesCalculation
resultEnvelope

Clear

Read

Air conditioning(AC)

Ventilation (V)Lighting (L)Hot water (HW)

Elevator (EV)

Calculate

Save

OutputPhotovoltaic power
generation (PV)Basic information

Basic information
Building
nameEnergy conservation standards
category of region

New building

Region 1
Region 2
Region 3
Region 4
Region 5
Region 6
Region 7
Region 8

Applicable modelbuilding

Office modelBusiness hotel model
City hotel model
General hospital model
Welfare facility model
Clinic model
School model
Kindergarten model
University model
Lecture hall model
Large-scale store model
Small-scale store modelRestaurant model
Meeting hall model
Factory modelCalculation
target area

- Basic information used commonly for theevaluation of envelope performance andprimary energy consumption of each facility
is input into the “Basic information” tab.
- Japan Sustainable Building Consortium’s“Energy Conservation Support Center”
publicizes “frequently asked questions andanswers”.

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Building shape

Total of multiple
usagesCalculation
resultExternal wall
performance

Evaluation ofenvelope
performance

Read

Air conditioning(AC)

Envelope

Clear

Ventilation (V)Lighting (L)Hot water (HW)

Elevator (EV)

Calculate

Save

OutputPhotovoltaic power
generation (PV)Window
performance
Envelope
Not evaluate

Evaluate

Building shape

Building height

Number of stories

Total of floor heightof each story

Length of outer perimeter

Length of building
outer perimeter

Length of outer perimeter of
non-air conditioning coreDirection

Direction
Directionof non-air
of non-air
conditioning
conditioning
corecore

North
East
South
West
None

External wall performance

Area of external wall, roof and floor
contacting outside air

External wallarea, North

External wallarea, East

- Input envelope specifications of intended
usage of calculation target building into the“Envelope” tab.
- The envelope means structures of the outer
perimeter of a building, which include
external walls, roof, floor contacting outsideair (pilotis, etc.), and windows.
- Japan Sustainable Building Consortium’s“Energy Conservation Support Center”
publicizes “frequently asked questions andanswers”.

External wallarea, South

External wallarea, West

Roof area

Area of floor contacting
outside air

Performance of external wall, roof
and floor contacting and outside air

Average heattransmission coefficientof external wall

Average heattransmission coefficientof roof

Average heat transmission
coefficient of floor contacting outside
air

Window performance

Window area

Window
area, North

Window
area, East

Window
area, South

Window
area, WestArea of window
on roof surface

Window performance

Average heat transmission coefficient of
window installed on external wall surface

Average solar radiation heat acquisition rate ofwindow installed on external wall surface

Average heat transmission coefficient of
window installed on roof surface

Average solar radiation heat acquisition rate ofwindow installed on roof surface

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic informationHeatsourceTotal of multiple
usagesCalculation
resultEnvelope

Clear

Read

Air conditioning(AC)

Ventilation (V)Lighting (L)Hot water (HW)

Elevator (EV)

Calculate

Save

OutputPhotovoltaic power
generation (PV)Outside airprocessing

Evaluation of air
conditioning facility

About air conditioning facilities
Not evaluate

Evaluate

Heat source

Heat source (cooling)

Main heat source (cooling)
Water chilling unit (air cooling)
Turbo refrigerator
Screw refrigerator
Absorption refrigerator
District heat supply
Packaged air conditioner (air cooling)Gas heat pump cooler and heater
Room air conditioner
Not used

Individual heat source
ratio (cooling)

Input method of heat source
capacity (cooling)
Not specified
Input values
Input method of heat source
efficiency (cooling)
Not specified
Input values

Heat source (heating)Main heat source (heating)Water chilling unit (air cooling)
Absorption refrigerator
Small once-through boiler
Hot water generator
District heat supply
Packaged air conditioner (air cooling)Gas heat pump cooler and heater
Room air conditioner
Electric heater, etc.
FF heater, etc.
Not used- Input specifications of air conditioning
facilities located in the intended usage of thecalculation target building into the “Airconditioning” tab.
- All of the air conditioning facilities installed in
the intended usage of the calculation target
building are subject to calculation.
- To evaluate air conditioning facilities, PAL6
to PAL23 of the “Envelope” tab also need to
be input.
- Japan Sustainable Building Consortium’s“Energy Conservation Support Center”
publicizes “frequently asked questions andanswers”.

Individual heat source
ratio (heating)

Input method of heat source
capacity (heating)
Not specified
Input values
Input method of heat source
efficiency (heating)
Not specified
Input values

Outside air processing

Total heat exchanger

Availability
Availability
of of
total
total
heatheatexchanger
exchanger
Not available
Available

Stoppage of air-intake when pre-heating

Stoppage of air-intake when
pre-heating
Not available
Available

Carriage control

Secondary pump

Variable flow rate control ofsecondary pump
Not available
Available

Air conditioner

Variable air flow control of air
conditioner fan
Not available
Available

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Total of multiple
usagesCalculation
resultRoom usage“Machine room”

Read

Air conditioning(AC)

Envelope
Room usage“Bathroom”

Evaluation of machine
ventilation facility

Ventilation (V)Room usage“Parking lot”

Evaluate

Availability ofmechanical ventilation
facility

Available

Ventilation
systemClass 1 ventilation system
Class 2 or Class
class 33 ventilation
ventilation systemsystemMotor output

Input system for motor
outputNot specified
Input motor output per unit air volume

Control system

Availability ofhigh-efficiency motor

Not available
Available
Availability of air
volume control

Not available
Available

Room usage “Bathroom”

Availability of mechanicalventilation facility

Availability ofmechanical ventilation
facility

Not available
Available

Ventilation system

Hot water (HW)

Elevator (EV)

OutputPhotovoltaic power
generation (PV)

About ventilation facilities
Not evaluate

Not available

Ventilation system

Lighting (L)Calculate

Save

Room usage“Kitchen”

Room usage “Machine room”

Availability of mechanicalventilation facility

Clear

Ventilation
systemClass 1 ventilation system
Class 2 or Class 3 ventilation system- Input specifications of mechanical ventilation
facilities located in the intended usage of thecalculation target building into the“Ventilation” tab.
- The mechanical ventilation facilities installedin the “machine room”, “bathroom”, “kitchen”
and “parking lot” in the intended usage ofthe calculation target building are subject tocalculation. However, input is not necessary
for the room usages which do not exist.
- Japan Sustainable Building Consortium’s“Energy Conservation Support Center”
publicizes “frequently asked questions andanswers”.

Motor output

Input system for motor
outputNot specified
Input motor output per unit air volume

Control system

Availability ofhigh-efficiency motor

Not available
Available
Availability of air
volume control

Not available
Available

Room usage “Parking lot”

Availability of mechanicalventilation facility

Availability ofmechanical ventilation
facility

Not available
Available

Room usage “Kitchen”

Availability of mechanicalventilation facility

Availability ofmechanical ventilation
facility

Not available
Available

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Total of multiple
usagesCalculation
resultCalculateRead

Air conditioning(AC)

Envelope

Clear

Ventilation (V)Lighting (L)Hot water (HW)

Elevator (EV)Save

OutputPhotovoltaic power
generation (PV)Room usage “Office”

Evaluation of lighting
facility

About lighting facilities
Not evaluate

Evaluate

Room usage “Office”

Availability of lighting facility

Availability oflighting facility

Not available
Available

Electric power consumption

Input method for electric
power consumption

Not specified
Input values

Control system, etc.

Occupancy
detection control

Not available
Available
Brightness
Brightness
detection
detectioncontrol
control

Not available
Available

Time schedule control
Not available
Available
Initial illuminancecorrection function

Not available
Available- Input the specifications of the lighting
facilities located in the intended usage of thecalculation target building into the “Lighting”tab.
- The lighting facilities installed in the room forthe main intended room usage specified foreach intended building usage are subject tocalculation.
- Japan Sustainable Building Consortium’s“Energy Conservation Support Center”
publicizes “frequently asked questions andanswers”.

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Total of multiple
usagesCalculation
result“Face-wash, hand-wash”
usage

Read

Air conditioning(AC)

Envelope“Bathroom” usage

Evaluation of hot watersupply facility

Ventilation (V)Evaluate

Availability of hot watersupply facility

Available

Input method for heatsource efficiency

Not specified
Input values
Pipe heat retention
specifications

Bare pipe
Heat retention specification 2 or 3
Heat retention specification 1
Hot watersavingequipment

Not available
Automatic hot water supply faucet“Bathroom” usage

Availability of hot water supply
facility

Availability of hot watersupply facility

Not available
Available“Kitchen” usage

Availability of hot water supply
facility

Hot water (HW)

Elevator (EV)

OutputPhotovoltaic power
generation (PV)

About hot water supply facilities
Not evaluate

Not available

Hot water supply facility
specifications

Lighting (L)Calculate

Save“Kitchen” usage“Face-wash, hand-wash” usage

Availability of hot water supply
facility

Clear

Availability of hot watersupply facility

Not available
Available- Input the specifications of the hot watersupply facilities in the intended usage of thecalculation target building into the “Hotwater” tab.
- The hot water supply facilities for“face-wash, hand-wash”, “bathroom”, and“kitchen” in the intended usage of thecalculation target building are subject tocalculation. However, input is not necessary
for the room usages which do not exist.
- Japan Sustainable Building Consortium’s“Energy Conservation Support Center”
publicizes “frequently asked questions andanswers”.

Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Total of multiple
usagesCalculation
resultEnvelope

Read

Air conditioning(AC)

Ventilation (V)Lighting (L)Hot water (HW)

Input for elevator

Availability of elevator

Availability ofelevator
Not available
Available

Speed control system

Clear

Speed control
systemAC feedback control, etc.
Variable voltage, variable frequency control system (without regeneration)
Variable voltage, variable frequency control system (with regeneration)

Elevator (EV)

Calculate

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OutputPhotovoltaic power
generation (PV)Model Building Method Input Support Tool
(For energy conservation standards of 2016) Ver. 2.2.1 (October, 2016)
Model:
OfficesCategory of region:
Region 6

Basic information

Total of multiple
usagesCalculation
resultInput for photovoltaic power
generation facility

Read

Air conditioning(AC)

Envelope
Panel 1Clear

Panel 2

Ventilation (V)Panel 3

Lighting (L)Hot water (HW)

Elevator (EV)

Calculate

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OutputPhotovoltaic power
generation (PV)

Panel 4
About photovoltaic power generation
facilities

Availability of photovoltaic power
generation facility

Availability of photovoltaic
power generation facility

Not available
Available- Input the specifications of the photovoltaic
power generation facilities located in theintended usage of the calculation target
building into the “Photovoltaic power
generation” tab.