When determining the environmental impacts of electric generation, it is essential to consider the generators’ “footprint,” the amount of land used in generating electricity. Natural gas has the smallest footprint of gas-fired plants have become popular sources of electricity. For example, a gas-fired plant only covers less than ½ an acre of land but can supply 1,000 average households with electricity for a year. NGSA compares the footprints of different electric generation fuels in this paper.