What is energy storage?

Energy storage allows us to store clean energy to use at another time, increasing reliability, controlling costs, and helping build a more resilient grid. Get the clean energy storage facts from ACP.

Why do we need energy storage?

Supports the integration of more wind and solar generation: Wind and solar are the cheapest sources of electricity. Energy storage supports the integration of higher and higher shares of renewables, enabling the expansion and incorporation of the most cost-effective sources of electricity generation.

What are energy storage technologies?

Energy storage technologies have the unique capabilities to keep the lights on when the power grid is under stress. In both Texas and California, energy storage technologies have prevented black outs during significant heatwaves—keeping people safe, power affordable, and the power on for businesses.

What is battery energy storage?

Energy storage is truly unique in its ability to add flexibility and efficiency to our nation's power grid. Battery energy storage systems (BESS) are great neighbors. Storage's unique capabilities serve communities in safe, clean, efficient, and affordable ways.

How does energy storage work?

Energy storage helps smooth out intermittent resources’ output by discharging during periods of low production. Compared to other generation systems, battery storage systems take up little space for the amount of power they release. The oldest and most common form of energy storage is mechanical pumped-storage hydropower.

What resources are available for energy storage?

The following resources provide information on a broad range of storage technologies. General Battery Storage, ARPA-E’s Duration Addition to electricitY Storage (DAYS), HydroWIRES (Water Innovation for a Resilient Electricity System) Initiative