Stabilizing the electric grid with megawatt-scale storage

On-grid storage is frequently pitched as a way to smooth over the swings in renewable power that accompany changing weather, like a drop in sunlight or increase in the wind. But Imre Gyuk, who heads the US Department of Energy's program for energy storage, used his talk at last week's EmTech meeting to argue that grid storage provides a basic level of reliability to the grid that would be valuable under any circumstances; enabling renewable energy's just a bonus.

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