This data is shorted out from the original data (which contains data of the whole country) released by EIA - Independent Statistics & Analysis U.S. Energy Information Administration. This data is available county-wide instead of city-wide; hence, two counties, namely Cook and DuPage, are considered part of the City of Chicago. Data includes mainly plant name, id, generator id & technology, nameplate; summer; winter capacities, and so on for operable; proposed; retired and closed plants.