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Can virtual power plants relieve hot spots on neighborhood power grids?

PG&E, Sunrun, and Span are testing how rooftop solar, batteries, and other resources can ease stressed-out local grid circuits as a way to avoid expensive upgrades.
Now, utilities are exploring another way to leverage VPPs: Strategically concentrating the systems in certain areas could let the companies defer expensive upgrades to nearby poles, wires, and other infrastructure. But first, utilities need to be 100% sure they can count on customer-owned assets without risking the grid’s reliability.

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