Benchmarking Air Emissions of the 100 Largest Electric Power Producers in the U.S., 2012
The 2012 Benchmarking report is the product of a collaborative effort among Entergy, Exelon, Bank of America, Tenaska, Ceres, and the Natural Resources Defense Council (NRDC), highlighting environmental performance and progress in the nation's electric power sector. The Benchmarking series began in 1997 and uses publicly reported data to compare the emissions performance of the 100 largest power producers in the United States. The current report is based on 2010 generation and emissions data. The report also includes analysis of 2011 emissions data, recognizing that the past few years have been a particularly active period in terms of companies switching to lower emitting fuels and installing pollution control systems.
Data on U.S. power plant generation and air emissions are available to the public through several databases maintained by state and federal agencies. Publicly- and privately-owned electric generating companies are required to report fuel and generation data to the U.S. Energy Information Administration (EIA). Most power producers are also required to report air pollutant emissions data to the U.S. Environmental Protection Agency (EPA). These data are reported and recorded at the boiler, generator, or plant level, and must be combined and presented so that company-level comparisons can be made across the industry.
The Benchmarking report facilitates the comparison of emissions performance by combining generation and fuel consumption data compiled by EIA with emissions data on sulfur dioxide (SO2), oxides of nitrogen (NOx), carbon dioxide (CO2) and mercury compiled by EPA; error checking the data; and presenting emissions information for the nation's 100 largest power producers in a graphic format that aids in understanding and evaluating the data. The report is intended for a wide audience, including electric industry executives, environmental advocates, financial analysts, investors, journalists, power plant managers, and public policymakers.
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