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

♦ Activity: Fuel combustion - Biomass

♦ Greenhouse gas: Methane ( CH4 )

► Year 1990 —

● Greenhouse gas emission estimate —

Amount: 895.69 tonnes of CH4 Emitted (18,809 tonnes 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.

● Activity level used in calculations —

Activity: Fuel combustion = 1,941,618 ton of Biomass
Basis: Data
Reference: Schnapp, R. (2007) Personal communication (data submittal) between Larry Hunsaker of CA Air Resources Board and Robert Schnapp of the Energy Information Administration. Summer 2007.

● Parameters and Constants used in calculations —

Parameter: Fuel CH4 emission = 3.000E-05 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.
Parameter: Heat content = 15,377,040 btu / ton
Reference: USEPA (2004). Climate Leaders Greenhouse Gas Inventory Protocol, Core Module Guidance. Direct Emissions from Stationary Combustion Sources. US Environmental Protection Agency, October 2004. (Tables B-1 and B-2).
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: 461 g of CH4 per ton of Biomass
9,688 g (i.e. 9.69 kg) of CO2eq. per ton of Biomass