JCM_TH_F_PM_ver01.0

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

The Kingdom of Thailand

Name of the methodology proponents Institute for Global Environmental Strategies
submitting this form
Sectoral scope(s) to which the Proposed 1.
Methodology applies

Energyindustries(renewable–/non-renewable sources)

Title of the proposed methodology, and Installation of gas engine cogeneration system toversion number

supply electricity and heat, Version 01.0

List of documents to be attached to thisThe attached draft JCM-PDD:form (please check):

Additional information

Date of completion

11/09/2018

History of the proposed methodology
Version01.0

Date
11/09/2018

Contents revisedFirst Edition1

JCM_TH_F_PM_ver01.0

A. Title of the methodology
Installation of gas engine cogeneration system to supply electricity and heat, Version 01.0

B. Terms and definitions
Terms

Definitions

Cogeneration System (CGS)

A system that consists of power generator(s) and heatgenerating equipment (e.g. heat recovery steam generator,
exhaust heat exchanger, etc.) and supplies both electricityand heat, recovering waste heat exhausted from the powergenerator(s). The power generator(s) is a gas engine(s) in thismethodology.

Recipient Facility

A cluster of buildings and/or plants (or building/plant itself)
to which electricity and heat generated by CGS are supplied.

Boiler Efficiency

Net quantity of heat generated per quantity of energy
contained in fuel fired in the boiler.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction Electricity and heat generated by a CGS installed in a projectsite substitute all or part of grid and/or captive electricity as
well as heat, which leads to efficient energy use of recipientfacility(ies) and in turn GHG emission reductions.

Calculation
emissionsofreference Reference emissions are CO2 emissions from the use of grid
and/or captive electricity and heat generated by a reference
boiler, which are calculated based on: the amount of electricity
consumed by the recipient facility(ies) which is generated by
the CGS; the amount of heat consumed by the recipientfacility(ies) which is generated by the CGS; CO2 emission
factors for consumed electricity in the recipient facility(ies);
reference boiler efficiency and fossil fuel consumed by thereference boiler.

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Calculation

ofproject Project emissions are CO2 emissions from the use of CGS,

emissionswhich are calculated based on: the amount of gas fuelconsumed by the CGS; net calorific value of gas fuelconsumed by the CGS; and CO2 emission factor of gas fuelconsumed by the CGS.
 Amount of electricity consumed by the recipient

Monitoring parameters

facility(ies) which is generated by the CGS
 Amount of heat consumed by the recipient facility(ies)which is generated by the CGS
 Amount of gas fuel consumed by the CGS

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

A CGS, whose power generation is driven by a gas engine(s), is newly installed
and supplies electricity and heat to recipient facility(ies).

Criterion 2

Electricity and heat, each of which is generated in separate systems, is supplied
to and consumed by recipient facility(ies) before the installation of a projectCGS.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Electricity consumption in recipient facility(ies)

CO2

Fossil fuel consumption for production of heat consumed in recipient CO2facility(ies)
Project emissions
Emission sources

GHG types

Gas fuel consumption by CGS

CO2

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions

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Reference emissions are calculated based on: the amount of electricity generated by the CGS
and consumed by the recipient facility(ies); the amount of heat generated by the CGS andconsumed by the recipient facility(ies); reference boiler efficiency; and CO2 emission factors forconsumed electricity in the recipient facility(ies) and fossil fuel consumed by the referenceboiler.
A default value for the reference boiler efficiency is conservatively set to 89 [%] taking thehighest value among those products sold in Thailand, so as to ensure net emission reductions.
F.2. Calculation of reference emissionsࡾࡱ࢖=෍ ࡾࡱࢋ࢒ࢋࢉ,࢏,࢖ + ෍ ࡾࡱࢎࢋࢇ࢚,࢏,࢖=෍൫ࡱ࡯࢏,࢖ × ࡱࡲࢋ࢒ࢋࢉ,࢏ ൯ + ෍ ࡴ࡯࢏,࢖ ×࢏࢏࢏࢏૚૙૙
× ࡱࡲࢌ࢛ࢋ࢒,ࡾࡱࣁࡾࡱWhereܴ‫ܧ‬௣ܴ‫ܧ‬௘௟௘௖,௜,௣ܴ‫ܧ‬௛௘௔௧,௜,௣‫ܥܧ‬௜,௣‫ܨܧ‬௘௟௘௖,௜‫ܥܪ‬௜,௣ߟோா‫ܨܧ‬௙௨௘௟,ோா݅: Reference emissions during the period p [tCO2/p]: Reference emissions for electricity consumed by the recipient facility iwhich is generated by the CGS during the period p [tCO2/p]: Reference emissions for heat consumed by the recipient facility i whichis generated by the CGS during the period p [tCO2/p]: Amount of electricity consumed by the recipient facility i which isgenerated by the CGS during the period p [MWh/p]: CO2 emission factor for consumed electricity in the recipient facility i[tCO2/MWh]: Amount of heat consumed by the recipient facility i which is generated
by the CGS during the period p [GJ/p]: Reference boiler efficiency [%]: CO2 emission factor for fossil fuel consumed by the reference boiler[tCO2/GJ]: Identification number for the recipient facility to which electricity andheat generated by the CGS is supplied

G. Calculation of project emissions

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ࡼࡱ࢖=ࡲ࡯࡯ࡳࡿ,࢖ × ࡺ࡯ࢂࢌ࢛ࢋ࢒,࡯ࡳࡿ × ࡱࡲࢌ࢛ࢋ࢒,ࡼࡶWhereܲ‫ܧ‬௣: Project emissions during the period p [tCO2/p]‫ܥܨ‬஼ீௌ,௣ܰ‫ܸܥ‬௙௨௘௟,஼ீௌ‫ܨܧ‬௙௨௘௟,௉௃

: Amount of gas fuel consumed by the CGS during the period p [mass orvolume/p]: Net calorific value of gas fuel consumed by the CGS [GJ/mass orvolume]: CO2 emission factor for gas fuel consumed by the CGS [tCO2/GJ]

H. Calculation of emissions reductions
ࡱࡾ࢖=ࡾࡱ࢖ − ࡼࡱ࢖Where‫ܴܧ‬௣ܴ‫ܧ‬௣ܲ‫ܧ‬௣: Emission reductions during the period p [tCO2/p]: Reference emissions during the period p [tCO2/p]: 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.
Parameter
ߟோாDescription of dataSource

Reference boiler efficiency.

Value derived from theDefault value is set to 89 [%].

result of survey. The default
value, 89 [%], should be
revised if necessary.

ܰ‫ܸܥ‬௙௨௘௟,஼ீௌ

Net calorific value of gas fuel consumed by theIn the order of preference:

CGS [GJ/mass or volume].

a) values provided by fuelsupplier;b) measurement by the
project participants;c) regional or national
default values; or5

JCM_TH_F_PM_ver01.0d) IPCC default values

provided in table 1.2 of
Ch.1 Vol.2 of 2006
IPCC Guidelines on
National GHG
Inventories. Upper value
is applied.
‫ܨܧ‬௘௟௘௖,௜

CO2 emission factor for consumed electricity in [Grid electricity]
the recipient facility i [tCO2/MWh].

The

mostrecentvalue

available at the time of
When the recipient facility consumes only grid validation is applied andelectricity or captive electricity, the project fixed for the monitoring
participant applies the CO2 emission factor period thereafter. The data isrespectively.

sourcedfrom“GridEmission Factor (GEF) of
When both grid electricity and captive electricity Thailand”,

endorsedby

may be consumed in the recipient facility, the Thailand Greenhouse Gas
project participant applies the CO2 emission factor Management Organization,with lower value.

unless otherwise instructedby the Joint Committee.

[CO2 emission factor]
For grid electricity: The most recent value[Captive electricity]

available from the source stated in this table at theFor the option a)time of validation
Specification of the captive
For captive electricity including cogeneration

power generation systemsystem, it is determined based on the following

connected to the recipient

options:

facility i, provided by thea) Calculated from its power generation efficiency

manufacturer (ߟ௖௔௣,௜ [%]).
CO2 emission factor of the(ߟ௖௔௣,௜ [%]) obtained from manufacturer’sfuel consumed by thespecification

captive power generation

The power generation efficiency based on lower

system connected to theheating value (LHV) of the captive powerrecipient facility igeneration system from the manufacturer’s(‫ܨܧ‬௙௨௘௟,௖௔௣,௜ [tCO2/GJ]) in

specification is applied;order of preference:

1) values provided by the6

JCM_TH_F_PM_ver01.0‫ܨܧ‬௘௟௘௖,௜ = 3.6 ×100× ‫ܨܧ‬௙௨௘௟,௖௔௣,௜ߟ௖௔௣,௜

fuel supplier;2)

measurementbytheproject participants;b) Calculated from measured data3)

regionalThe power generation efficiency calculated fromdefault values;

monitored data of the amount of fuel input for4)

power generation (‫ܥܨ‬௖௔௣,௜,௣ ) and the amount ofprovided in table 1.4 ofIPCC

ornational

default

valueselectricity generated (‫ܩܧ‬௖௔௣,௜,௣ ) during theCh.1 Vol.2 of 2006 IPCC

monitoring period p is applied. The measurement

Guidelines

is conducted with the monitoring equipment to

GHG Inventories. Lower

which calibration certificate is issued by an entity

value is applied.

onNational

accredited under national/international standards;‫ܨܧ‬௘௟௘௖,௜ = ‫ܥܨ‬௖௔௣,௜,௣ × ܰ‫ܸܥ‬௙௨௘௟,௖௔௣,௜ × ‫ܨܧ‬௙௨௘௟,௖௔௣,௜Where:×1‫ܩܧ‬௖௔௣,௜,௣

For the option b)
Generatedandsupplied

electricity by the captive
power generation systemܰ‫ܸܥ‬௙௨௘௟,௖௔௣,௜ : Net calorific value of the fuel connected to the recipient
consumed by the captive power generation system facilityi‫ܩܧ‬௖௔௣,௜,௣

(connected to the recipient facility i [GJ/mass or [MWh/p]).
volume]Fuel amount consumed bythecaptivepower

Note:generation

In case the captive electricity generation system

connected to the recipientconnected to the recipient facility i meets all of thefacility i (‫ܥܨ‬௖௔௣,௜,௣ [mass orfollowing conditions, the value in the following
table may be applied to ‫ܨܧ‬௘௟௘௖,௜ depending on the
consumed fuel type.

systemvolume/p]).
Net

calorificvalue( ܰ‫ܸܥ‬௙௨௘௟,௖௔௣,௜ [GJ/mass orvolume]) and CO2 emission
The system is non-renewable generation

factorsystem( ‫ܨܧ‬௙௨௘௟,௖௔௣,௜ [tCO2/GJ]) inElectricity generation capacity of the system
is less than or equal to 15 MWofthefuelorder of preference:1) values provided by thefuel supplier;fuel type‫ܨܧ‬௘௟௘௖,௜

DieselfuelNatural gas

0.8 *10.46 *22)

measurement

bytheproject participants;
3)

regional

default values;
7ornationalJCM_TH_F_PM_ver01.0*1 The most recent value at the time of validation

4)

IPCC

defaultvalues

is applied.

provided in tables 1.2 and*2 The value is calculated with the equation in the 1.4 of Ch.1 Vol.2 of 2006
option a) above. The lower value of default IPCC

Guidelinesoneffective CO2 emission factor for natural gas National GHG Inventories.
(0.0543 tCO2/GJ), and the most efficient value of Lower value is applied.
default efficiency for off-grid gas turbine systems[Captive electricity with(42%) are applied.

diesel fuel]CDM approved small scale
methodology: AMS-I.A.
[Captive electricity withnatural gas]
2006 IPCC Guidelines on
National GHG Inventories
for the source of EF ofnatural gas.
CDM Methodological tool
"Determining the baseline
efficiency of thermal orelectric energy generation
systems version02.0" for thedefault efficiency foroff-grid power plants.
‫ܨܧ‬௙௨௘௟,ோா

CO2 emission factor for fossil fuel consumed by In the order of preference:
the reference boiler [tCO2/GJ].

a) values provided by fuelCO2 emission factor of natural gas is applied inthis methodology in a conservative manner.

supplier;b) measurement by the
project participants;c) regional or national
default values; ord) IPCC default values
provided in table 1.4 of
Ch.1 Vol.2 of 2006
IPCC Guidelines on
National GHG

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Inventories. Lower value
is applied.
‫ܨܧ‬௙௨௘௟,௉௃

CO2 emission factor for gas fuel consumed by theIn order of preference:

CGS [tCO2/GJ].

a) values provided by fuelsupplier;b) measurement by theproject participants;c) regional or nationaldefault values; ord) IPCC default values

provided in table 1.4 ofCh.1 Vol.2 of 2006
IPCC Guidelines on
National GHG
Inventories. Upper value
is applied.

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