German solar battery firm sonnen sees bigger role backing up grid
By Vera Eckert FRANKFURT (Reuters) – Germany’s sonnen, which provides storage batteries for rooftop solar systems, has connected 25,000 homes to the grid, amassing 250 megawatt hours (MWh) of capacity to help power networks manage supply and demand, it said on Wednesday. Although 250 MWh is a tiny fraction of power demand in Western countries, …
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