first published week of:   04/10/2023

Utility-Scale Energy Storage: Technologies and Challenges for an Evolving Grid

by U.S. Government Accountability Office

Technologies to store energy at the utility-scale could help improve grid reliability, reduce costs, and promote the increased adoption of variable renewable energy sources such as solar and wind.

The U.S. electricity grid was designed to generate electricity and deliver it almost immediately to customers—very little is stored.

• Adding more energy storage could have benefits, like helping utilities
• Meet demand during supply disruptions
• Recover faster after outages
• Support renewable energy by storing power when natural sources—like wind and sunlight—are abundant and releasing it when they are not

But it can be hard to put storage technologies on a grid that wasn't designed for this use. Also, putting storage on the grid means navigating varied state rules and regulations. We offer policy options to address these and other challenges.

 Read full story at U.S. Government Accountability Office …

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