Last reviewed on 12-01-2023

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

♦ Category: Industrial Processes and Product Use

IPCC: 2D1 - Non-Energy Products from Fuels and Solvent Use - Lubricant Use
Sector: Transportation : Not Specified

♦ Activity: Fuel consumption - Lubricants

♦ Greenhouse gas: Carbon dioxide ( CO2 )

► Year 2014 —

● Greenhouse gas emission estimate —

Amount: 955,256 tonnes of CO2 Emitted (955,256 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Fuel consumption] * [Heat content] * (1 - [Proportion of carbon stored]) * [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 consumption = 98,152,778 gal of Lubricants
Basis: Data
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

● Parameters and Constants used in calculations —

Parameter: CO2 emission factor = 0.0743 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 = 144,000 btu / gal
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: Proportion of carbon stored = 0.09
Reference: USEPA (2021). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2019. United States Environmental Protection Agency. Annex 2.3 (Table A-66). EPA 430-R-19-001. https://www.epa.gov/sites/default/files/2021-04/documents/us-ghg-inventory-2021-annex-2-emissions-fossil-fuel-combustion.pdf

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

Amount: 9,732 g (i.e. 9.73 kg) of CO2 per gal of Lubricants