Last reviewed on 12-01-2023

Documentation of California's Greenhouse Gas Inventory (2023 Edition - Last updated on 12-1-2023)

♦ Category: Energy

IPCC: 1A1aii - Fuel Combustion Activities - Energy Industries - Main Activity Electricity and Heat Production - Combined Heat and Power Generation (CHP)
Sector: Electricity Generation (In State) : CHP: Commercial

♦ Activity: Fuel combustion - Natural gas

♦ Greenhouse gas: Carbon dioxide ( CO2 )

► Year 2000 —

● Greenhouse gas emission estimate —

Amount: 727,748 tonnes of CO2 Emitted (727,748 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Fuel combustion] * [Heat content] * [Fuel CO2 emission]
Reference: IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programme, Eggleston H.S., Buendia L., Miwa K., Ngara T., and Tanabe K. (eds). Volume 2, Chapter 2: Stationary Combustion. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf

● Activity level used in calculations —

Activity: Fuel combustion = 13,456,793,269 scf of Natural gas
Basis: Data
Reference: Schnapp, R. (2008). Data request (data submittal) between CARB and Robert Schnapp of the Energy Information Administration. Summer 2008.

● Parameters and Constants used in calculations —

Parameter: CO2 emission factor = 0.053 g / btu
Reference: CARB Mandatory Reporting of Greenhouse Gas Regulation. Subpart C of 40 CFR Part 98 (§§98.30 to 98.38). Available online at: https://www.arb.ca.gov/cc/reporting/ghg-rep/regulation/subpart_c_rule_part98.pdf
Parameter: Heat content = 1,020 btu / scf
Reference: EIA (2021). Energy Information Administration. State Energy Consumption, Price, and Expenditure Estimates (SEDS). Available online at: https://www.eia.gov/state/seds/seds-data-complete.php?sid=CA

● Greenhouse gas emitted per unit activity (derived from values listed above) —

Amount: 54.1 g of CO2 per scf of Natural gas