Peaker Plants. A Peaker Plant is a power plant that can turn on and off very quickly to meet temporary peaks in electricity demand. They are usually located close to load (people and businesses) and are typically fueled by oil or natural gas. Is a conventionally fueled generating plant the best way to meet this power need? Many think not. “Energy Storage to Replace Peaker Plants” www.sandia.gov . “The Drive to Replace Summer-only ‘Peaker’ Power Plants” www.wired.com 5/19/20. “Replacing Peaker Plants With Battery Storage” www.cesa.org “Battery Storage 30% Cheaper Than Gas Peaker Plants” www.pv-magazine.com 4/12/21.