Earthquakes? Winter Storm? No Problem for the Redwood Coast Energy Authority Microgrid

Microgrid Knowledge

The microgrid faced one of its first major tests early in the morning Dec. 20, 2022, when a 6.4-magnitude earthquake rocked the region. More than 70,000 customers in Humboldt County lost power.

“It was basically a real-world test of a worst-case scenario,” said Matthew Marshall, executive director of the Redwood Coast Energy Authority, the community choice aggregator that owns the microgrid.

Marshall said the quake hit shortly after the batteries discharged to the grid during the evening peak, so they were at their low point of charge.

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