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The Emission Factor Library is a central piece of ghgtools. The following document details the coverage of the emission factor library and provides guidance on how to organize your activity data accordingly.


Years Covered

ef_activeyear
2023


Scope 1 & 2 Service Types Covered

service_type emission_category
Aviation Gasoline Mobile
Biodiesel (100%) Mobile
Compressed Natural Gas (CNG) Mobile
Diesel Fuel Mobile
Ethanol (100%) Mobile
Kerosene-Type Jet Fuel Mobile
Liquefied Natural Gas (LNG) Mobile
Liquefied Petroleum Gases (LPG) Mobile
Motor Gasoline Mobile
Residual Fuel Oil Mobile
Asphalt and Road Oil Stationary
Aviation Gasoline Stationary
Butane Stationary
Butylene Stationary
Crude Oil Stationary
Distillate Fuel Oil No. 1 Stationary
Distillate Fuel Oil No. 2 Stationary
Distillate Fuel Oil No. 4 Stationary
Ethane Stationary
Ethylene Stationary
Heavy Gas Oils Stationary
Isobutane Stationary
Isobutylene Stationary
Kerosene Stationary
Kerosene-Type Jet Fuel Stationary
Liquefied Petroleum Gases (LPG) Stationary
Lubricants Stationary
Motor Gasoline Stationary
Naphtha (<401 deg F) Stationary
Natural Gas Stationary
Natural Gasoline Stationary
Other Oil (>401 deg F) Stationary
Pentanes Plus Stationary
Petrochemical Feedstocks Stationary
Propane Stationary
Propylene Stationary
Residual Fuel Oil No. 5 Stationary
Residual Fuel Oil No. 6 Stationary
Special Naphtha Stationary
Unfinished Oils Stationary
Used Oil Stationary
Steam Indirect Energy
Chilled Water Indirect Energy
Electricity Indirect Energy


Scope 3 Categories Covered

emission_category
Purchased Goods and Services
Capital Goods
Business Travel
Employee Commuting
Waste Generated in Operations