Types of Power Plants

  • Base Plant – The backbone of the electric generation system, these plants are built for economy, durability and reliability rather than speed. Base plants provide the constant base of power needed around the clock throughout the year. It takes time to bring them up to full power and shut them down. In Georgia, most base plants are nuclear.
  • Intermediate Plant – Intermediate plants can operate for extended periods of time, but don’t generally run all the time.
  • Peaking Plant – Operate when electricity use is at its peak. These plants can be brought online and taken offline quickly in response to temperature. In Georgia, electrical peaks usually occur on hot summer afternoons because of air conditioning. Natural gas is a common fuel for peaking plants as well as hydroelectric dams.