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80 � appendix B Inventory Methodology <br />Appendix <br />., oMethodology <br />Southern California Edison (SCE) provided <br />electricity consumption data in kilowatt -hours <br />(kWh) for 2008; SCE provides all electricity <br />used in Santa Ana except for electricity <br />generated by solar systems. Table 1 includes <br />electricity consumption for the community; <br />Table 2 includes electricity consumption for <br />City municipal operations. SCE includes <br />Table 1. Santa Ana Community -wide <br />Electricity Usage, 2008 <br />Sector kWh <br />Residential 378;$88;235 <br />Commercial and Industrial 1,398,181,157 <br />Total 1,777,169,392 <br />Santa Ana receives electricity produced by <br />SCE and through direct access electricity. <br />SCE - produced GHG emissions were <br />quantified using utility- specific emissions <br />factors; these were taken from SCE's 2007 <br />Annual Emissions Report for the California <br />Climate Action Registry. SCE did not report <br />an emissions factor for 2008; therefore, the <br />2007 emissions factor was used as a proxy. <br />Emissions from electricity supplied by direct <br />usage from SCE - supplied electricity as well <br />as direct access electricity. Direct Access <br />electricity refers to electricity purchased <br />directly by industries from power generation <br />facilities, which is then delivered through the <br />transmission lines of a public or private utility, <br />and accounts for 8.8% of the electricity usage <br />reported for Santa Ana. <br />Table 2. Santa Ana Municipal Operations <br />Electricity Usage, 2008 <br />Operations Electricity Usage, 2008 Sector kWh <br />Buildings and Facilities 30,096,817 <br />Public Lighting 15,942,280 <br />Water and WastowaterTransport 11,639;798 <br />Total 57,678,895 <br />access providers through SCE's transmission <br />system were quantified using a California <br />average emissions factor from the Local <br />Government Operations Protocol (LGOP) as <br />specific emissions factors are not available for <br />direct access electricity. Emissions factors for <br />CH4 and N2O were obtained from the LGOP, <br />which provides a statewide average emissions <br />factor for electricity. Table 3 summarizes <br />emissions factors used in this analysis. <br />Table 3. Electricity- related Emissions Factors in Lee /MWh <br />SCE CD,' Direct Access CO2' CH'' N,02 <br />630.89 919.64 0.029 0.01 <br />' 2007 Annual Emissions Report available at: http:// www. climateregistry. org/ carrot/Reports /CREntityEmissionReport.aspx <br />2 LGOP Table G.7 California Grid Average Electricity Emission Factors (1990 -2007) <br />