San Diego solar guides and comparisonsReviewed July 2026
Batteries

Do Solar Panels Work During a Power Outage?

Why ordinary grid-tied solar shuts down and what backup equipment changes.

Reviewed July 2026

Most standard grid-tied systems shut down during an outage to protect utility workers and equipment. Backup operation requires compatible islanding equipment and commonly a battery.

Ask for a circuit-level plan

  • Which circuits remain powered?
  • Can the system start large motors or HVAC?
  • Can solar recharge the battery while the grid is down?
  • What happens when the battery reaches reserve?

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Rules, rates, products and programs change. Verify current information with the linked official source and the final written contract.

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