Emissions & Generation Resource Integrated Database

The Emissions & Generation Resource Integrated Database (eGRID) is a comprehensive source of data on the environmental characteristics of almost all electric power generated in the United States. eGRID is issued by the U.S. Environmental Protection Agency (EPA).

As of October 2015, the available editions of eGRID contain data for years 2012, 2010, 2009, 2007, 2005, 2004, and 1996 through 2000. eGRID is unique in that it links air emissions data with electric generation data for United States power plants.

eGRID data include emissions, different types of emission rates, electricity generation, resource mix, and heat input. eGRID data also include plant identification, location, and structural information. The emissions information in eGRID include carbon dioxide (CO₂), nitrogen oxides (NO_x), sulfur dioxide (SO₂), methane (CH₄), nitrous oxide (N₂O),and carbon dioxide equivalent (CO₂e). CO₂, CH₄, and N₂O are greenhouse gases (GHG) that contribute to global warming or climate change. NO_x and SO₂ contribute to unhealthy air quality and acid rain in many parts of the country. eGRID's resource mix information includes the following fossil fuel resources: coal, oil, gas, other fossil; nuclear resources; and the following renewable resources: hydroelectric (water), biomass (including biogas, landfill gas and digester gas), wind, solar, and geothermal.