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Joint Crediting Mechanism Approved Methodology TH_AM007“Power Generation by Waste Heat Recovery in Cement Industry”
A. Title of the methodology
Power Generation by Waste Heat Recovery in Cement Industry, Version 01.0

B. Terms and definitions
TermsDefinitions

Waste heat

Heat generated from cement production facility which would
not have been recovered in the absence of the project.

Preheater boiler

Boiler which recovers waste heat from a preheater, which
pre-heats raw materials fed into a rotary kiln, to generatesteam.

Air Quenching Cooler boiler(AQC boiler)

Boiler which recovers waste heat from an air quenchingcooler to generate steam.

Waste Heat Recovery system

Power generation system consisting of a preheater boiler(WHR system)

and/or AQC boiler, turbine generator and cooling tower thatutilizes waste heat from cement production facility.

C. Summary of the methodology
Items
GHG

emissionmeasures

Summary
reduction Waste heat recovery (WHR) system which generates electricity
through waste heat recovered from cement production facility.
Electricity generated from the WHR system replaces gridelectricity and/or captive resulting in GHG emission reductionsof the connected electricity system.

Calculation

ofemissions

reference Reference emissions are calculated from net electricity
generation by the project which replaces grid electricity and/orcaptive use where the project is implemented during a given time
period.

Calculation

ofproject Project emissions are not considered as the WHR system does1

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emissions

not utilize any fossil fuel as a heat source to generate steam for
power generation.

Monitoring parameters

The quantity of the electricity supplied from the WHR system tothe cement production facility and the number of days during amonitoring period.

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

The project installs waste heat recovery (WHR) system in the cement production
facility.

Criterion 2

WHR system utilizes only waste heat and does not utilize fossil fuels as a heatsource to generate steam for power generation.

Criterion 3

WHR system has not been introduced to a corresponding cement kiln of theproject prior to its implementation.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Grid electricity and/or captive power generation

CO2Project emissions
Emission sources

GHG types

N/A

N/A

F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated on the basis of net electricity generation by the project that
replaces grid or captive electricity.
The quantity of electricity consumed by the WHR system except for direct captive use of theelectricity generated by itself is subtracted from the quantity of the electricity supplied from theWHR system to the cement production facility to calculate net electricity generation.
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In order to ensure conservativeness, the quantity of electricity consumption by the WHR system
except for the direct captive use of the electricity generated by itself, is calculated by using thetheoretically maximum load for the capacity of equipment in the above-mentioned WHRsystem.
F.2. Calculation of reference emissions
REp = EGp * EFelec
Where,
ܴ‫ܧ‬௣‫ܩܧ‬௣: Reference emissions during a given time p [tCO2/p]: The quantity of net electricity generation by the WHR system during a given time
period p [MWh/p]‫ܨܧ‬௘௟௘௖ : CO2 emission factor for consumed electricity[tCO2/MWh]

Determination of EGp
EGp = EGSUP,p − ECAUX,p‫ܩܧ‬ௌ௎௉,௣ : The quantity of the electricity supplied from the WHR system to the cement
production facility during a given time period p [MWh/p]‫ܥܧ‬஺௎௑,௣ : The quantity of electricity consumption by the WHR system except for the direct
captive use of the electricity generated by itself during a given time period p[MWh/p]

Determination of ECAUX,pECAUX,p = ECCAP * 24(hours/day) * Dp‫ܥܧ‬஼஺௉ : The total maximum rated capacity of equipment of the WHR system which consumes

electricity except for the capacity of equipment which use the electricity generated
by itself directly [MW]‫ܦ‬௉: The number of days during a given time period p [day/p]

G. Calculation of project emissions
Project emissions are not assumed in the methodology as the WHR system utilizes only waste
heat and does not utilize fossil fuels as heat source to generate steam for power generation,3

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which is prescribed in the eligibility criterion 2.
Therefore, the following formula is used to express the project emissions:
PEp = 0

H. Calculation of emissions reductions
Emission reductions are calculated as the difference between the reference emissions andproject emissions, as follows:
ERp ＝ REp − PEp

I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
Parameter
EFelecDescription of data
CO2 emission factor for consumed electricity.

Source[Grid electricity]
The most recent value available

When the electricity supplied from the WHRat the time of validation issystem displaces only grid electricity orapplied and fixed for thecaptive electricity, the project participant

monitoring period thereafter.

applies the CO2 emission factor respectively.

The data is sourced from Grid
Emission Factor (GEF) of

When the electricity supplied from the WHRThailand”, endorsed bysystem displaces both grid electricity andThailand Greenhouse Gas

captive electricity, the project participant

Management Organization

applies the CO2 emission factor with lower

unless otherwise instructed byvalue.

the Joint Committee.

[CO2 emission factor][Captive electricity]

For grid electricity: The most recent value

For the option a)available from the source stated in this table atSpecification of the captive

the time of validation

power generation systemprovided by the manufacturer

For captive electricity, it is determined based(ηelec [%]).

on the following options:

CO2 emission factor of the4

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fossil fuel type used in thea) Calculated from its power generation

captive power generation

efficiency (ηelec [%]) obtained fromsystem (EFfuel [tCO2/GJ])

manufacturer’s specification
The power generation efficiency based on

For the option b)

lower heating value (LHV) of the captive

Generated and supplied

power generation system from theelectricity by the captive power

manufacturer’s specification is applied;generation system (EGPJ,p‫ܨܧ‬௘௟௘௖ = 3.6 ×100× ‫ܨܧ‬௙௨௘௟ߟ௘௟௘௖[MWh/p]).
Fuel amount consumed by thecaptive power generationb) Calculated from measured datasystem (FCPJ,p [mass orThe power generation efficiency calculatedvolume/p]).

from monitored data of the amount of fuelNet calorific value (NCVfuel

input for power generation (‫ܥܨ‬௉௃,௣ ) and the[GJ/mass or volume]) and CO2amount of electricity generated (‫ܩܧ‬௉௃,௣ )emission factor of the fuelduring the monitoring period p is applied. The(EFfuel [tCO2/GJ]) in order ofmeasurement is conducted with the monitoring

preference:equipment to which calibration certificate is1) values provided by the fuelissued by an entity accredited under

supplier;

national/international standards;

2) measurement by the project‫ܨܧ‬௘௟௘௖ = ‫ܥܨ‬௉௃,௣ × ܰ‫ܸܥ‬௙௨௘௟ × ‫ܨܧ‬௙௨௘௟ ×Where:1‫ܩܧ‬௉௃,௣ܰ‫ܸܥ‬௙௨௘௟ : Net calorific value of consumed

fuel [GJ/mass or volume]participants;
3) regional or national default
values;4) IPCC default values
provided in tables 1.2 and 1.4
of Ch.1 Vol.2 of 2006 IPCC
Guidelines on National GHG

Note:Inventories. Lower value is

In case the captive electricity generation

applied.

system meets all of the following conditions,the value in the following table may be
applied to ‫ܨܧ‬௘௟௘௖ depending on the consumed[Captive electricity with diesel

・ The system is non-renewable generation

methodology: AMS-I.A.

fuel type.

system5fuel]CDM approved small scale

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・ Electricity generation capacity of thesystem is less than or equal to 15 MW[Captive electricity with naturalgas]
2006 IPCC Guidelines onfuel type‫ܨܧ‬௘௟௘௖

Dieselfuel

Natural gas

0.8 *10.46 *2

National GHG Inventories forthe source of EF of natural gas.
CDM Methodological tool
"Determining the baseline
efficiency of thermal or electric*1 The most recent value at the time ofenergy generation systems

validation is applied.

version02.0" for the default*2 The value is calculated with the equation in

efficiency for off-grid power

the option a) above. The lower value of default

plants.

effective CO2 emission factor for natural gas(0.0543tCO2/GJ), and the most efficient valueof default efficiency for off-grid gas turbine
systems (42%) are applied.
ECCAP

The total maximum rated capacity ofRated capacity of all installed

equipment of the WHR system which

equipment of the WHR system

consumes electricity except for the capacity ofwhich consumes electricity

equipment which use the electricity generated

except for the capacity of

by itself directly

equipment which use theelectricity generated by itself
directly.

History of the document
Version01.0

Date
20 April 2018

Contents revised
JC4, Annex 1
Initial approval.

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