Last reviewed on 06-22-2018

Documentation of California's Greenhouse Gas Inventory (11th Edition - Last updated on 11-06-2019)

♦ Category: Industrial Processes and Product Use

IPCC: 2G1b - Other Product Manufacture and Use - Electrical Equipment - Use of Electrical Equipment
Sector: Electricity Generation (In State) : Transmission and Distribution

♦ Activity: Electricity transmitted -

♦ Greenhouse gas: Sulphur hexafluoride ( SF6 )

► Year 2001 —

● Greenhouse gas emission estimate —

Amount: 15.02 tonnes of SF6 Emitted (342,392 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Electricity transmitted] * [SF6 emission factor]
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of SF6 emissions associated with electricity transmission available at: ttps://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf

● Activity level used in calculations —

Activity: Electricity transmitted = 198,596,086,290 kWh
Basis: Compilation
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of SF6 emissions associated with electricity transmission available at: ttps://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf

● Parameters and Constants used in calculations —

Parameter: SF6 emission factor = 7.562E-05 g / kWh
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of SF6 emissions associated with electricity transmission available at: ttps://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf
Constant: Global warming potential of SF6 = 22800
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: 7.562E-05 g of SF6 per kWh
1.72 g of CO2eq. per kWh
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