Solar + Battery for Hurricane Outages: What Keeps Running, What Doesn't, What It Costs

The most common solar misconception in Florida: 'When the grid goes down after a hurricane, at least I'll have power.' Standard grid-tied solar shuts OFF in an outage — by design, so panels don't back-feed lines workers are repairing. If outage resilience is part of why you want solar, you're really shopping for solar plus battery.

What battery backup actually runs

• ▸Essentials tier (one battery, ~10-14 kWh): refrigerator, internet/phones, lights, fans, medical devices — the difference between camping in your house and living in it. Recharged daily by the panels, this can run indefinitely through a multi-day outage.
• ▸Comfort tier (two or more batteries): adds a mini-split or window unit for one cool room, well pumps, garage door — the realistic sweet spot for hurricane country.
• ▸Whole-home with central AC: possible, but central AC is a battery-devouring load — this tier means serious battery capacity and cost. Most families are better served cooling one room and protecting the fridge.

Battery vs generator, honestly

A portable generator is far cheaper upfront and runs anything you can fuel — but fuel is exactly the problem in a real hurricane aftermath (gas lines, storage limits, nightly refills, carbon monoxide risk). Batteries are silent, automatic, fuel-free, and work every day of the year shaving peak rates — but cost meaningfully more. Plenty of prepared households run both: battery for continuity, generator for extended-outage muscle.

The numbers, ballpark

Adding battery storage typically runs $10,000-$20,000+ installed depending on capacity and equipment, on top of the solar system. Florida's sales-tax exemption applies to solar equipment, and batteries charged by your panels ride the same economics. Whether it pencils depends on your outage tolerance, medical needs, and how much a week of Airbnb-and-spoiled-groceries costs your family every few years.

Our satellite solar estimator sizes the panel side in a minute; the battery conversation is a design question we cover at the free assessment — including honest talk about what tier your goals actually need.