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Benchmarking Air Emissions

This report analyzes the latest emissions from the 100 largest power producers in the U.S. The report shows that the electric industry cut emissions of NOx, SO2 and CO2 in 2011 even as overall electricity generation increased, largely due to increased use of natural gas and growing reliance on renewable energy.

This report analyzes the latest emissions from the 100 largest power producers in the U.S. The report shows that the electric industry cut emissions of NOx, SO2 and CO2 in 2011 even as overall electricity generation increased, largely due to increased use of natural gas and growing reliance on renewable energy.

Based on the latest available data, the report also reveals that Wyoming, Kentucky, West Virginia, Indiana, and North Dakota had the highest CO2 emissions per megawatt-hour of power produced, while Idaho, Vermont, Washington, Oregon, and Maine had the lowest CO2 emissions rates. Nationwide, five power producers—American Electric Power, Duke Energy, FirstEnergy, Southern Company, and Tennessee Valley Authority—generate 25 percent of overall electric sector CO2 emissions, though some of these producers and others have significantly reduced emissions in recent years.

The Benchmarking Air Emissions report is the ninth in a series highlighting environmental performance and progress in the nation’s electric power sector.

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