EnergyCAP® Professional

Greenhouse Gas Emission Factors

Purchased Electricity CO2 Emission Factors

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Natural Gas CO2 Emission Factors

(assuming an average heat content
of 1,029 Btu / CF)

 lb CO2 / MMBtu
lb CO2 / DK Therm
lb CO2 / Therm
lb CO2 / CCF
lb CO2 / MCF

116.98
116.98
11.70
12.04
120.37

 
#2 Heating Oil CO2 Emission Factor

(assuming an average heat content
of 5.825 MMBtu / Barrel)

 lb CO2 / Gallon

22.38

 
Propane CO2 Emission Factor

(assuming an average heat content
of 3.824 MMBtu / Barrel)

 lb CO2 / Gallon

12.65

 
Coal CO2 Emission Factor

(assuming an average heat content
of 22.05 MMBtu / Short ton)

 lb CO2 /Short ton

4,634.71

 

Source: The Climate Registry, General Reporting Protocol for the Voluntary Reporting Program (March 2008), Table 12.1.

NOTE: the source description from Table 12.1 is as follows:  U.S. EPA, Inventory of Greenhouse Gas Emissions and Sinks: 1990-2005 (2007), Annex 2.1, Tables A-31, A-32, A-35, and A-36, except: Heat Content factors for Unspecified Coal (by sector), Naphtha (<401 deg. F), and Other Oil (>401 deg. F) (from U.S. Energy Information Administration, Annual Energy Review 2006 (2007), Tables A-1 and A-5) and Carbon Content and Heat Content factors for Coke and LPG (from EPA Climate Leaders, Stationary Combustion Guidance (2007), Table B-1). A fraction oxidized value of 1.00 is from the Intergovernmental Panel on Climate Change (IPCC), Guidelines for National Greenhouse Gas Inventories (2006). Note: Default CO2 emission factors (per unit energy) are calculated as: Carbon Content × Fraction Oxidized × 44/12. Default CO2 emission factors (per unit mass or volume) are calculated using Equation 12d: Heat Content × Carbon Content × Fraction Oxidized × 44/12 × Conversion Factor (if applicable). Heat content factors are based on higher heating values (HHV).

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