Given its location, Gray County would have displaced mostly NGCC and some oil fired generation. Using the average 2003 NGCC heatrate for the sub-powerpool (7,478 Btu/kWh) and the average CO2 content of natural gas (116 #CO2/MMBtu), the project may have displaced only 158,000 tons of CO2 in 2003 (0.00207% of 2003 US estimated emissions according to the USDOE report entitled Emissions of Greenhouse Gases in the United States, 2003 (issued December 13, 2004). (Note in 2002, the output was less and it would have displaced only 140,000 tons).