Last reviewed on November 2, 2011 at 10:04

Documentation of California's Greenhouse Gas Inventory (First Edition - Last updated on 11/19/2007)

♦ Category: Energy

IPCC: 1A1ai - Fuel Combustion Activities - Energy Industries - Main Activity Electricity and Heat Production - Electricity Generation
Sector: Electricity Generation (Imports) : Specified Imports : PNW : Colstrip (MT)

♦ Activity: Fuel combustion - Distillate

♦ Greenhouse gas: Methane ( CH4 )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 4.057E-02 tonne of CH4 Emitted (0.852 tonne CO2 Eq.)
Basis: Calculation
Calculation: [Fuel combustion] * [Heat content] * [Fuel CH4 emission]
Reference: IPCC (1997). Revised 1996 IPCC Guidelines for National Greenhouse Gas Inventories (Revised Guidelines). Intergovernmental Panel on Climate Change. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/gl/invs1.htm

● Activity level used in calculations —

Activity: Fuel combustion = 98,802 gal of Distillate
Basis: Data
Reference: Parsons (2007). Personal communication (EIA form 767 data submittal & Plant Specific Data Reports) between Larry Hunsaker of CA Air Resources Board and Cindy Parsons, Los Angeles Department of Water & Power. Summer 2007.

● Parameters and Constants used in calculations —

Parameter: Fuel CH4 emission = 3.000E-06 g / btu
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: Energy. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf
Parameter: Heat content = 136,865 btu / gal
Reference: Parsons (2007). Personal communication (EIA form 767 data submittal & Plant Specific Data Reports) between Larry Hunsaker of CA Air Resources Board and Cindy Parsons, Los Angeles Department of Water & Power. Summer 2007.
Constant: Global warming potential of CH4 = 21
Reference: IPCC (1996). Second Assessment Report. Climate Change 1995: WG I - The Science of Climate Change. Intergovernmental Panel on Climate Change; J.T. Houghton, L.G. Meira Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell (eds.); Cambridge University Press. Cambridge, U.K.

● Greenhouse gas emitted per unit activity —

Amount: 0.411 g of CH4 per gal of Distillate
8.62 g of CO2eq. per gal of Distillate
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