These specialized facilities use batteries to store excess electricity from renewables, like wind and solar, and to release the power when needed most. Learn more about BESS technology and how we regulate it.
How BESS works
Battery energy storage systems (BESS) store electricity from other facilities. They use large batteries to collect extra energy and release it when more people are using power or when power generation decreases. These systems help ensure a stable supply of electricity.
BESS facilities are useful for storing energy from solar plants and wind farms, which don’t generate power all the time. They also provide backup power during outages and can respond quickly to changes in electricity needs. As battery technology improves and companies produce more renewable energy, these facilities are becoming more common.
BESS facilities can be part of a renewable energy facility, or they can be stand-alone facilities.
How we oversee BESS
Stand-alone BESS facilities don’t need our approval. However, these facilities may choose to come to us for certification through our siting process. If we receive an application for site certification for a solar or wind project, it may include a BESS facility. We will evaluate the BESS as part of our overall review process for the solar or wind project.
