Types of Power Plants
Peaking plants, a third category, operate primarily during times when power use is at its peak — for example, on hot summer afternoons when air conditioning causes electricity usage to reach its highest levels. Peaking plants are often powered by natural gas, but they can also be powered by water at hydroelectric dams or by fuel oil.
These plants can be brought online quickly to meet the rapidly increasing demand for power on hot summer days, and can then be taken offline quickly as power demand diminishes in the evening. The Talbot Energy Facility, an Oglethorpe Power-owned, gas-powered combustion turbine plant northeast of Columbus, is an example of a peaking facility in Georgia.