Reliable energy sources and a diverse fuel mix are integral to maintaining America’s electric grid and keeping the lights on. The electric grid must be carefully balanced at all times so that supply matches demand or otherwise blackout would occur. This means that the grid needs reliable sources of generation to keep supply and demand matched at all times. New data on the polar vortex that swept the nation in January show how difficult this can be and highlight the perils of government policies designed to replace reliable energy sources with intermittent ones.
