Electricity generation sources, like wind, solar, hydropower, geothermal, and fossil fuels (like coal and natural gas), and nuclear energy, differ in both how emissions are generated and how reliably they supply power. Read more for an overview of how these major generation sources compare, based on the geography of the US.

There are broadly 3 steps to creating and using electricity: generation, transmission, and distribution. This FAQ provides an overview of electricity generation, transmission, and distribution.