JCM_ID_F_PM_ver01.0

JCM Proposed Methodology Form
Cover sheet of the Proposed Methodology Form
Form for submitting the proposed methodology
Host CountryIndonesia

Name of the methodology proponents KDDI corporation
submitting this form
Sectoral scope(s) to which the Proposed 1.Energy industries (renewable-/ non-renewable
Methodology appliessources)

Title of the proposed methodology, and Installation of Tribrid Systems to mobile
version number

communication’s Base Transceiver Stations, Ver01.0

List of documents to be attached to this form

The attached draft JCM-PDD:(please check):

Additional information1) Explanatory note about power system
configuration of BTS

Date of completion

24/08/2017

History of the proposed methodology
Version01.0

Date
24/08/2017

Contents revisedFirst Edition1

JCM_ID_F_PM_ver01.0

A. Title of the methodology
Installation of Tribrid Systems to mobile communication’s Base Transceiver Stations Ver 01.0

B. Terms and definitions
Terms

Definitions

Base Transceiver Station (BTS)

A facility equipped with antenna and other communicationequipment for sending and receiving radio signals to mobile
devices and converting them to digital signals. A typical BTS
in Indonesia comprises of a transceiver, rectifier, diesel
generator, and a lead-acid battery as a standby power supply
to prevent momentary and/or temporary power failure.

Tribrid System

Tribrid System is a combined system of solar PV, batteries, andelectric power control system. Tribrid System controls
charge-discharge of battery, and improves the operational
efficiency of diesel generators with its electric power control
system. As a result, it reduces consumption of grid electricity
and/or captive electricity.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summaryreduction By installation of Tribrid system(s) to mobile communication’s
Base Transceiver Stations, the project achieves energy saving
through displacement of grid and/or captive electricity by solar
power, and optimization of the efficiency of diesel generator
reducing its total operation time.

Calculation
emissionsofreference Reference emissions are calculated on the basis of monitored
electricity consumption at the project BTS. The reference gridelectricity and/or diesel consumption are calculated based onhours for which electricity is available from grid, and efficiency
of diesel generator. Then, emissions from grid electricity and/ordiesel consumption are calculated multiplying by CO2 emission2

JCM_ID_F_PM_ver01.0

factor of grid electricity and/or diesel.
Calculationofproject Project emissions are calculated on the basis of monitored gridemissions

electricity consumption and/or diesel consumption at the project
BTS after implementation of the project, and CO2 emission
factor of grid electricity and/or diesel.

Monitoring parameters-The amount of grid electricity consumed at BTSi
-The quantity of diesel consumed at BTSi
-The amount of electricity generated by the project diesel
generator at BTSi
-The amount of electricity generated by the project solar PV
systems at BTSi
-Hours for which electricity is available from grid at BTSi
-Hours of operation of BTSi

D. Eligibility criteria
This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1

The project installs Tribrid system(s) to new and/or existing BTS.

Criterion 2

The project BTS is located at the telecom tower sites equipped with diesel
generator.

Criterion 3

The PV modules have obtained a certification of design qualifications (IEC61215, IEC 61646, or IEC62108), and safety qualification (IEC 61730-1, andIEC 61730-2) at the time of validation based on the latest version ofinternational or national standard.

Criterion 4

The battery installed by the project is Li-ion battery.

Criterion 5

In the case of replacing existing Lead-Acid battery with the project Li-ionbattery, lead contained in existing Lead-Acid battery is not released to theenvironment.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Emissions from grid electricity and/or captive electricity
Project emissions

3CO2

JCM_ID_F_PM_ver01.0

Emission sources

GHG types

Emissions from grid electricity and/or captive electricity

CO2

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated on the basis of monitored electricity consumption at theproject BTS. The reference grid electricity and/or diesel consumption that are calculated basedon hours for which electricity is available from grid, and efficiency of diesel generator. Then,emissions from grid electricity and/or diesel consumption are calculated multiplying by CO2emission factor of grid electricity and/or diesel.
Reference emissions are calculated using design efficiency of new diesel generator to beinstalled at the project BTS when it’s installed to the project BTS. If new diesel generator is notinstalled by the project, the design value of efficiency of the diesel generator operated at theproject BTS at the time of validation is applied for the calculation of reference emissions. If
more than one diesel generators are equipped at the project BTS, the most efficient value among
the design efficiency of the equipped diesel generators is adopted for the calculation of thereference emissions.
Ensuring net emission reductions
Net emission reductions are ensured by adopting a design efficiency of the project dieselgenerator. If a new diesel generator replaces the existing one, the design efficiency of the newdiesel generator is applied. It is also ensured by calculating fuel consumption by dieselgenerator based on the assumption that diesel generator is undertaken steady operation withdesign efficiency in reference scenario although actual fuel consumption is used for the project
scenario.
F.2. Calculation of reference emissions

𝑅𝐸𝑝 = ∑ (𝐸𝐶𝑖,𝑝 ×𝑖𝜏𝑖,𝑝× 𝐸𝐹𝑔𝑟𝑖𝑑 + 𝜑𝑖 × (𝑇𝑖,𝑝 − 𝜏𝑖,𝑝 ) × 𝜌𝑑𝑖𝑒𝑠𝑒𝑙 × 10−6 × 𝑁𝐶𝑉𝑑𝑖𝑒𝑠𝑒𝑙 × 𝐸𝐹𝑑𝑖𝑒𝑠𝑒𝑙 × 10−3 )𝑇𝑖,𝑝and𝐸𝐶𝑖,𝑝 = 𝐸𝐶𝑖,𝑔𝑟𝑖𝑑,𝑝 + 𝐸𝐶𝑖,𝑑𝑖𝑒𝑠𝑒𝑙,𝑝 + 𝐸𝐶𝑖,𝑠𝑜𝑙𝑎𝑟,𝑝Where
REp= Reference emissions during the period p (tCO2/p)

ECi,p= Total electricity consumption at BTSi during the period p (MWh/p)4

JCM_ID_F_PM_ver01.0

𝐸𝐶𝑖,𝑔𝑟𝑖𝑑,𝑝=

The amount of grid electricity consumed at BTSi during the period p(MWh/p)

𝐸𝐶𝑖,𝑑𝑖𝑒𝑠𝑒𝑙,𝑝=

The amount of electricity generated by the project diesel generator at BTSi
during the period p (MWh/p)

𝐸𝐶𝑖,𝑠𝑜𝑙𝑎𝑟,𝑝=The amount of electricity generated by the project solar PV system at BTSi
during the period p (MWh/p)=Hours for which electricity is available from grid at BTSi during the periodp (h/p)

𝑇𝑖,𝑝= Total hours of operation of BTSi during the period p (h/p)

EFgrid= Grid CO2 emission factor (tCO2/MWh)=

Design efficiency of diesel generator operated at the project BTS at thetime of validation at 25% load to be installed at BTSi (L/h)

𝜌𝑑𝑖𝑒𝑠𝑒𝑙= Weighted average density of diesel (kg/L)

NCVdiesel= Net calorific value of diesel (TJ/Gg)

EFdiesel= Diesel CO2 emission factor (kgCO2/TJ)

G. Calculation of project emissions

𝑃𝐸𝑝 = ∑(𝐸𝐶i,grid,𝑝 × 𝐸𝐹𝑔𝑟𝑖𝑑 + 𝐹𝐶𝑖,𝑑𝑖𝑒𝑠𝑒𝑙,𝑝 × 𝜌𝑑𝑖𝑒𝑠𝑒𝑙 × 10−6 × 𝑁𝐶𝑉𝑑𝑖𝑒𝑠𝑒𝑙 × 𝐸𝐹𝑑𝑖𝑒𝑠𝑒𝑙 × 10−3 )
𝑖

Where
PEp

=

ECi,grid,p=EFgrid=Project emissions during the period p (tCO2/p)
The amount of grid electricity consumed at BTSi during the period p(MWh/p)
Grid CO2 emission factor (tCO2/MWh)

FCi,diesel,p =The quantity of diesel consumed at BTSi during the period p (L/p)

𝜌𝑑𝑖𝑒𝑠𝑒𝑙Weighted average density of diesel (kg/L)=NCVdiesel =Net calorific value of diesel (TJ/Gg)

EFdiesel

Diesel CO2 emission factor (kgCO2/TJ)=5

JCM_ID_F_PM_ver01.0

H. Calculation of emissions reductions
ER p = REp -PEp
Where
ERp

=

Emission reductions during the period p (tCO2/p)

REp=Reference emissions during the period p (tCO2/p)

PEp=

Project emissions during the period p (tCO2/p)

I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
ParameterDescription of data

SourceDesign efficiency of diesel generator

Specification of generator.

operated at the project BTS at the time of

Manufacturer’s data.

validation at 25% load to be installed at

If more than one diesel

BTSi (L/h)

generators are equipped at theIf new diesel generator is not installed byproject BTS, the most efficientthe project, the design value of the diesel

value among the design

generator operated at BTS at the time ofefficiency of the equipped

validation is applied for the calculation ofdiesel generators is adopted

reference emissions. The design efficiency

for the calculation of theof the diesel generator at 25% value isreference emissions.

applied.
As a load factor of diesel generator at BTS
site, 25% load which is set for mini-gridwith 24 hour services in CDM approved
small scale methodology AMS-I.F. isadopted. According to the AMS-I.F.,
mini-grid is defined as small-scale powersystem with a total capacity not exceeding
15MW. For diesel generator operation atBTS connected to unreliable grid withavailable electricity less than 24 hours,adopting efficiency of diesel generator (L/h)
at 25% load to ensure conservativeness.
EFgridGrid CO2 emission factor (tCO2/MWh)

6The most recent valueJCM_ID_F_PM_ver01.0

available at the time ofvalidation is applied and fixed
for the monitoring period
thereafter. The data is sourced
from “Emission Factors ofElectricity InterconnectionSystems”, NationalCommittee on Clean
Development Mechanism
Indonesian DNA for CDM
unless otherwise instructed by
the Joint Committee.
𝜌𝑑𝑖𝑒𝑠𝑒𝑙Weighted average density of diesel (kg/L)a) Values provided by the fuelsupplier in invoices, orb) Regional or national defaultvalue.

NCVdiesel

Net calorific value of diesel （TJ/Gg）

IPCC default values provided
in table 1.2 of Ch.1 Vol.2 of2006 IPCC Guidelines on
National GHG Inventories.
Lower value is applied.

EFdiesel

Diesel CO2 emission factor (kgCO2/TJ)

IPCC default values provided
in table 1.4 of Ch.1 Vol.2 of2006 IPCC Guidelines on
National GHG Inventories.
Lower value is applied.

7