Nevada Greenhouse Gas Inventory and Reference Case Projections

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FINAL Nevada GHG Inventory and Reference Case Projection CCS, July 2007 Figure A6. Electricity Generated by Nevada Power Plants 1990-2020, excluding exports from Mohave Power Plant 60,000 50,000 40,000 GWh 30,000 20,000 10,000 0 1990 1995 2000 2005 2010 2015 2020 Hydroelectric Natural Gas RPS energy efficiency Mohave (in-state use) Petroleum Wind, Geothermal, Solar Coal Electricity demand (sales + losses) Note: “Mohave” refers to estimated generation by the Mohave generating plant for in-state electricity sales, “Coal” refers to estimated generation from all other coal plants located in Nevada Figure A7 shows the “net-consumption-based” emissions from 1990 to 2020, based on the generation mix in Figure A7 and the emissions from imports that are based on the projected average generation mix from the Rocky Mountain region of the WECC, based on results of the AEO2006. The estimated regional emission factor is about 0.66 MtCO 2 e/MWh in 2004, increasing to 0.71 MtCO 2 e/MWh in 2020, higher than Nevada’s GHG emission rate (see Electricity Trade section above for further information on this factor). Consumption-based emissions increase by 1.7 percent per year from 2005 to 2020. Nevada Division of 28 Center for Climate Strategies Environmental Protection www.climatestrategies.us
FINAL Nevada GHG Inventory and Reference Case Projection CCS, July 2007 Figure A7. Nevada GHG Emissions Associated with Electricity Use (Consumption-Basis), showing Exports 30 25 Coal Natural gas Petroleum Imports MMtCO2e 20 15 10 5 0 1990 1995 2000 2005 2010 2015 2020 Source: CCS calculations based on approach described in text. Table A7 summarizes the GHG emissions for Nevada’s electric sector from 1990 to 2020. During this time period, emissions are projected to increase by 33 percent on a production-basis and 111 percent on a consumption-basis. Table A7. Nevada GHG Emissions from Electric Sector, Production and Consumptionbased estimates, 1990-2020. (Million Metric Tons CO2e) 1990 2000 2005 2010 2020 Electricity Production 16.7 24.6 26.1 18.6 22.3 Coal 15.1 18.0 17.9 7.8 11.0 CO2 15.0 17.9 17.8 7.8 10.9 CH4 and N2O 0.1 0.1 0.1 0.0 0.1 Natural Gas 1.3 6.5 8.3 10.8 11.3 CO2 1.3 6.5 8.3 10.8 11.3 CH4 and N2O 0.0 0.0 0.0 0.0 0.0 Petroleum 0.3 0.1 0.0 0.0 0.0 CO2 0.3 0.1 0.0 0.0 0.0 CH4 and N2O 0.0 0.0 0.0 0.0 0.0 Elecricity Imports (negative for exports) -3.7 -5.6 -5.3 1.9 5.2 Electricity Consumption-based Emissions 13.0 19.0 20.8 20.5 27.4 Note: Values that are less than 0.05 MMTCO 2 e are listed as 0.0 in table A7. Nevada Division of 29 Center for Climate Strategies Environmental Protection www.climatestrategies.us
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