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Appendix C Methodology reference This table serves as a brief summary of the methodologies outlined in Part II of the GPC, and includes a general overview of activity data and emission factors used.

Please note that this table is not exhaustive. Cities may use alternative methodologies, activity data and emission factors as appropriate. Methods used to calculate emissions shall be justified and disclosed.

Table C.1 Methodology reference

Sectors

Emission sources

Approaches

Activity data

Emission factors

1

Fuel consumption

Amount of fuel consumption

Mass GHG emissions per unit of fuel

Consumption of grid-supplied energy consumed within the city boundary

2

Grid-energy consumption

Amount of gridsupplied energy consumption

Mass GHG emissions per unit of grid-supplied energy (grid specific emission factor)

Transmission and distribution losses from grid-supplied energy

3

Loss rate based approach

Amount of energy transmitted and average loss rate of the grid

Mass GHG emissions per unit of grid-supplied energy

Fuel combustion within the city boundary

Stationary Energy

Scope

Direct Measurement Fugitive emissions from fossil fuels extraction and processing

Fuel combustion for inboundary transportation

Transportation

1

1

Direct measurement of GHG emissions

Production-based estimation

Quantity of production in fuel extraction and processing

Mass GHG emissions per unit of fossil fuel production

ASIF model (Activity, Share, Intensity, Fuel)

Distance traveled by type of vehicle using type of fuel

Mass GHG emissions per unit distance traveled by type of vehicle using type of fuel

Fuel sold method

Amount of fuel sold

Mass GHG emissions per unit of sold fuel

Amount of electricity consumed

Mass GHG emissions per unit of grid-supplied energy (grid specific emission factor)

Consumption of gridsupplied energy for inboundary transportation

2

Grid-energy consumption model

Emissions from transboundary transportation

3

ASIF model (Activity, Share, Intensity, Fuel)

Distance traveled or fuel consumed by type of vehicle using type of fuel

Mass GHG per unit distance traveled or fuel consumed by type of vehicle using type of fuel

3

Loss rate based approach

Amount of energy transmitted and average loss rate of the grid

Mass GHG emissions per unit of grid-supplied energy

Transmission and distribution losses from grid-supplied energy

160 Global Protocol for Community-Scale Greenhouse Gas Emission Inventories


Global Protocol for Community-Scale Greenhouse Gas Emission Inventories