Last reviewed on 12-01-2023
Documentation of California's Greenhouse Gas Inventory
(2023 Edition - Last updated on 12-1-2023)
♦ Category: Energy
| IPCC: |
1A4a - Fuel Combustion Activities - Other Sectors - Commercial/Institutional |
| Sector: |
Commercial : Communication : Other Message Communications |
♦ Activity: Fuel combustion - Natural gas
♦ Greenhouse gas: Methane ( CH4 )
► Year 2006 —
● Greenhouse gas emission estimate —
| Amount: |
1.71 tonne of CH4 Emitted (42.66 tonnes CO2 Eq.) |
| Basis: |
Calculation |
| Calculation: |
[Fuel combustion] * [Heat content] * [Fuel CH4 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 = 1,668,232,831 scf of Natural gas |
| Basis: |
Data |
| Reference: |
Nguyen, C. (2019). Data request (data from the CEC's Quarterly Fuels and Energy Report) between CARB and Cam-Giang Nguyen of the California Energy Commission. February 2019. |
● Parameters and Constants used in calculations —
| Parameter: |
CH4 emission factor = 1.000E-06 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 = 1,023 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 |
| Constant: |
Global warming potential of CH4 = 25 |
| Reference: |
IPCC (2007). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S., Qin D., Manning M., Chen Z., Marquis M., Averyt K.B., Tignor M., and Miller H.L. (eds.). http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm |
● Greenhouse gas emitted per unit activity (derived from values listed above) —
| Amount: |
1.023E-03 g of CH4 per scf of Natural gas
0.0256 g of CO2eq. per scf of Natural gas |