The Tennessee Valley Authority plans to add ample storage to its grid by the end of the decade.

The public utility announced that it was targeting up to 1.5 gigawatts of battery storage — the equivalent of one its largest gas plants under construction, like the Kingston project — by the end of 2029.

“We’re trying to drive a sense of urgency with these assets,” TVA’s chief business officer Jeremy Fisher said during a board meeting Thursday.

TVA has been expanding its system this decade, mostly with new gas plants.

Battery storage can strengthen grids, whether systems are dominated by fuels or have high renewable penetration like in California and Texas.

The U.S. Department of Energy’s National Renewable Energy Lab has described energy storage as “crucial” to developing a resilient, low

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