UNFCCC/CCNUCC
CDM – Executive Board
EB 41
Report
Annex 11
Page 1
Methodological tool
“Tool to calculate project or leakage CO2 emissions from fossil fuel combustion”
(Version 02)
I. SCOPE, APPLICABILITY AND PARAMETERS
Scope and applicability
This tool provides procedures to calculate project and/or leakage CO2 emissions from the combustion of
fossil fuels. It can be used in cases where CO2 emissions from fossil fuel combustion are calculated based
on the quantity of fuel combusted and its properties. Methodologies using this tool should specify to which
combustion process j this tool is being applied.
Parameters
This tool provides procedures to determine the following parameters:
Parameter
SI Unit
Description
PEFC,j,y
tCO2/yr
CO2 emissions from fossil fuel combustion in process j during the year y
II. BASELINE METHODOLOGY PROCEDURE
CO2 emissions from fossil fuel combustion in process j are calculated based on the quantity of fuels
combusted and the CO2 emission coefficient of those fuels, as follows:
∑
×
=
i
y
i,
y
j,
i,
y
j,
FC,
COEF
FC
PE
(1)
Where:
PEFC,j,y
=
Are the CO2 emissions from fossil fuel combustion in process j during the year y
(tCO2/yr);
FCi,j,y
=
Is the quantity of fuel type i combusted in process j during the year y (mass or volume
unit/yr);
COEFi,y
=
Is the CO2 emission coefficient of fuel type i in year y (tCO2/mass or volume unit)
i
= Are the fuel types combusted in process j during the year y
The CO2 emission coefficient COEFi,y can be calculated using one of the following two Options, depending
on the availability of data on the fossil fuel type i, as follows:
UNFCCC/CCNUCC
CDM – Executive Board
EB 41
Report
Annex 11
Page 2
Option A: The CO2 emission coefficient COEFi,y is calculated based on the chemical composition of the
fossil fuel type i, using the following approach:
If FCi,j,y is measured in a mass unit:
(2)
44/12
w
COEF
y
i,
C,
y
i,
×
=
If FCi,j,y is measured in a volume unit:
(3)
44/12
w
COEF
y