peaker plants

Watching The Baseload Paradigm Fail

Because of the nature of baseload power plants, only supplying enough to cover the base load, other plants have to be put online to cover any demand above the base load. These include load-following plants, which are more costly to run. In the old days, many of these ran on oil. Nowadays, the fuel of choice is natural gas, though the design of the plant is a different from that of a gas-fired baseload plant.