Page 75 - Demo

GHG Computational Methodology
GHG Computational Methodology
The Scope 1, 2 and 3 GHG emissions inventory will include all
the GHG gases (i.e. CO2, N2O, CH4, HFCs and PFCs) arising from
the activities carried out by Crisil Limited.
Scope 1 emissions: These are direct emissions arising from
the combustion of fuels and GHG leakages within Crisil’s
boundary from equipment/sources it owns or controls.
The Scope 1 GHG emissions for Crisil Limited arise from
combustion of natural gas in vehicles, diesel combustion in DG
sets and vehicles, refrigerant gas leakages in air conditioners/
chillers and CO2 gas refilled in CO2-based fire extinguishers.
Scope 2 emissions: These are indirect emissions arising from
the generation of purchased electricity consumed by Crisil
Limited within its operational boundary.
Scope 3 emissions: These are indirect emissions that arise
from the activities outside the organisation’s boundary but
are a result of the activities related to the organisation. Scope
3 emissions for Crisil Limited will include upstream emissions
associated with the production of goods and services
procured, fuel and energy consumed, transportation of the
procured goods, third-party waste treatment, business travel
and employee commute.
GHG computational methodology
Scope 1 GHG emissions will be reported in sub-
categories in alignment with GHG Protocol standards.
This includes the below:
Stationary combustion:
1. This will include emissions arising from the combustion
of fuel in stationary equipment (which is fixed during the
fuel combustion). Stationary equipment GHG sources
will be identified after discussion with identified key
stakeholders. Typical stationary GHG sources include
DG sets, petrol gensets, liquefied petroleum gas-based
cook-stoves.
2. The fuel combustion data for stationary equipment will
be collected across different locations in customised
data collection templates. In case of absence of actual
fuel consumption data, it will be estimated based on
the expenditure incurred on the fuel purchase within
the respective country of operation.
3. The emissions will be calculated using the below
mentioned formula.
Annotation Parameters Source
A Emission Factor, kgCO2 / TJ IPCC 2006
B Emission Factor, kgCH4 / TJ IPCC 2006
C Emission Factor, kgN2O / TJ IPCC 2006
D Standard Net Calorific Value,
TJ / UoM of Fuel
IPCC 2006
E GWP of CO2 IPCC AR 6
F GWP of CH4 IPCC AR 6
G GWP of N2O IPCC AR 6
H Total Fuel Consumption
Quantity, UoM*
Crisil
*UoM means unit of measure. It will vary from fuel to fuel, e.g. litres
for diesel
Total GHG emissions, tCO 2 e = { [ (a * e) + (b * f) + (c * g) ] * d * h }
/ 1,000
Mobile emissions:
1. This will include emissions arising from the combustion
of fuel in mobile equipment (which moves during the fuel
combustion). Mobile GHG sources will be identified after
discussion with identified key stakeholders. Typical
mobile GHG sources include vehicles and grass-cutting
machines, etc.
2. The fuel combustion data in mobile equipment will be
collected across different locations in customised data
collection templates. In case of absence of actual fuel
consumption data, it will be estimated based on the:
• Expenditure incurred on the fuel purchase within the
respective country of operation OR
• Distance travelled and the equipment mileage
assumptions
3. The emissions will be calculated using the below
mentioned formula.
Annotation Parameters Source
A Emission Factor, kgCO2 / TJ IPCC 2006
B Emission Factor, kgCH4 / TJ IPCC 2006
C Emission Factor, kgN2O / TJ IPCC 2006
D Standard Net Calorific Value,
TJ / UoM of Fuel
IPCC 2006
E GWP of CO2 IPCC AR 6
F GWP of CH4 IPCC AR 6
G GWP of N2O IPCC AR 6
H Total Fuel Consumption
Quantity, UoM*
Crisil
*UoM means unit of measure. It will vary from fuel to fuel, e.g. litre
for diesel and petrol, kg for CNG
Total GHG emissions, tCO 2 e = {[ (a * e) + (b * f) + (c * g) ] * d * h }
/ 1000
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