Stationary combustion refers to the combustion of fuels to produce electricity, heat, or motive power using equipment in a fixed location.
Examples of stationary combustion in buildings include furnaces, boilers, burners and internal combustion engines that use fossil fuels such as natural gas, heating oil, coal, and diesel.
In the LGO Protocol, all stationary combustion is reported as a Scope 1 emission.
There are a number of approaches to calculating emissions based on the data that is available at the time of the inventory. To learn more about these approaches, please click on the links below.
Recommended Approach: Known Fuel Use
- Determine annual consumption of fuel combusted at facilities. Potential sources for obtaining fuel use activity data include accounts payable, departmental records, utility bills, fuel vendors/suppliers, etc.
- Determine the appropriate CO2 emission factors for fuel. (Appendix Table G.1in LGO Protocol).
- Determine the appropriate CH4 and N2O emission factors for fuel (Appendix Table G.3 in LGO Protocol).
- Calculate fuel’s CO2 emissions and convert to metric tons.
- Calculate fuel’s CH4 and N2O emissions and convert to metric tons.
- Convert CH4 and N2O emissions to CO2 equivalent and determine total emissions.
Alternate Approach 1: Proxy Year Data
- Determine annual fuel consumption of fuel in proxy year (either another calendar year or else a fiscal year).
- Normalize for heating and cooling degree days.
- Calculate fuel’s CO2, CH4, and N2O emissions.
Alternative Approach 2: Comparable Facilities and Square Footage
- Identify fuel combusted at the facility. Examples include coal, residual fuel oil, distillate fuel (diesel), liquefied petroleum gas (LPG), and natural gas.
- Determine the size of the facility measured in floor area (square feet).
- Identify comparable facilities with known annual fuel consumption rates and square footage.
- Determine fuel used per square foot at comparable facility (e.g. gallon or MMBtu/sq ft for each fuel type).
- Estimate total annual fuel consumed at the facility.
- Calculate fuel’s CO2, CH4, and N2O emissions.
