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Solar & Blackouts · Mythbuster

Does solar work in a blackout?

Most grid-tied solar shuts off when the grid does. A home battery is what changes that.

  • $0 upfront for qualified homes
  • Solar + battery
  • Monitored, maintained & insured

The short answer

By the VPP Home Energy team · Last updated July 17, 2026

No — for most standard rooftop systems, the answer is no, and that is by design, not a defect. Most grid-tied solar installations without a battery automatically shut off during a utility power outage, so the panels alone will not keep a home powered when the grid goes down. Adding a home battery is what changes that: it lets essential circuits keep running during an outage. Exactly which circuits, and for how long, is specific to each home and confirmed by a specialist — not promised in advance.

This page walks through the myth carefully: why grid-tied solar shuts off in the first place, what a battery actually changes, and what a solar-and-battery Virtual Power Agreement includes for qualified Texas homes. It sticks to honest, hedged language — no runtime guarantees, no whole-house promises — because the details that matter depend on your home and are confirmed in writing by a specialist before you decide anything.

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No upfront cost. No obligation. If it’s not a fit, we’ll tell you honestly.

The myth

Does solar keep the lights on during a blackout?

No. Most standard grid-tied solar installations without a battery automatically shut off during a utility power outage. This is standard safety behavior that prevents solar equipment from sending power back into the grid while utility crews may be working on downed lines. Solar panels alone therefore do not keep a home powered when the grid goes down.

Why do grid-tied solar systems shut off in an outage?

The shutoff protects line workers. Without isolation, a solar array could backfeed the utility lines and create a hazard. This automatic disconnect, often called anti-islanding protection, is built into typical grid-tied equipment and is widely known industry practice.

What changes it

Can a home battery change that outcome?

Yes. Adding a battery allows essential circuits to keep running during an outage. The battery stores energy from the solar array (and can charge when the sun is available) so selected loads can stay on even while the utility is down. Exactly which circuits are covered and how long they can run is homeowner-specific; a specialist confirms those details rather than any generic promise of runtime or whole-house coverage.

Grid-tied solar alone

Without a battery:

  • Shuts off automatically during an outage
  • Anti-islanding protects utility line workers
  • Panels alone don’t power the home when the grid is down

Solar plus a battery

With storage added:

  • Essential circuits can keep running during an outage
  • The battery stores solar energy and charges when the sun is out
  • Which circuits and how long is confirmed by a specialist
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No upfront cost. No obligation. The check takes about 2 minutes.

The program

What does the solar-and-battery Virtual Power Agreement include?

The program is a solar-and-battery Virtual Power Agreement (VPA) with up to 60 kWh of battery storage, zero dollars upfront for qualified homes. The provider covers maintenance, monitoring, and insurance, and homeowners keep their retail electricity provider. Backup capacity, circuit coverage, and system sizing remain specific to each home and are confirmed by a specialist in a free consult via the provider’s Electricity Facts Label.

  • Solar and battery together

    A Virtual Power Agreement with rooftop solar plus battery storage up to 60 kWh.

  • $0 upfront for qualified homes

    No initial homeowner payment; the provider maintains, monitors, and insures the system.

  • You keep your retail provider

    The agreement does not require switching your retail electricity provider in deregulated Texas.

Check my eligibility

No upfront cost. No obligation.

Eligibility

Who is eligible for the program?

Serviceability requires a deregulated Texas utility. Homes on electric co-ops or regulated utilities are excluded. A specialist confirms whether your exact address qualifies.

How do I learn what backup would look like for my home?

A specialist can walk through what backup would look like for your specific home. That consult is the place where homeowner-specific details — capacity, circuits, and sizing — are confirmed via the Electricity Facts Label rather than guessed in advance.

Check my eligibility

No upfront cost. No obligation. The check takes about 2 minutes.

Check eligibility

See if your Texas home qualifies

Program fit depends on your home and utility, so a quick check gives you a real answer — not a generic one.

Your details are only used to check your home’s eligibility and to follow up with you. If it’s not a fit, we’ll tell you honestly.

A battery program specialist may follow up by phone or email about your request. No obligation. See our Privacy Notice and Terms.

Preliminary fit check only; not a final eligibility decision. Program terms vary by home, provider, and program path.

How it works

How does the program work?

Three steps: check your eligibility, talk to a specialist, and get set up at $0 upfront if your home qualifies.

  1. Check your eligibility.

    Answer a few quick questions about your Texas home and utility.

  2. Talk to a specialist.

    A specialist reviews your home and the exact terms in plain language — everything in writing before you decide.

  3. Get set up at $0 upfront.

    If your home qualifies, the provider installs and handles maintenance, monitoring, and insurance.

Check my eligibility

No upfront cost. No obligation. If it’s not a fit, we’ll tell you honestly.

About these facts

Where do these facts come from?

This page sticks to standard industry practice and the program’s approved facts. It is not a rate quote, a savings guarantee, or a backup-runtime promise.

The automatic shutoff of grid-tied solar during an outage — and the anti-islanding safety behavior behind it — is standard, widely known industry practice for grid-tied systems, meant to protect utility line workers. The program details on this page (a solar-and-battery Virtual Power Agreement, battery storage up to 60 kWh, $0 upfront for qualified homes, provider-covered maintenance, monitoring, and insurance, deregulated-Texas eligibility) reflect the program’s current Texas terms. Backup capacity, circuit coverage, and system sizing are homeowner-specific and are confirmed by a specialist via the provider’s Electricity Facts Label — not promised in advance.

Last updated July 17, 2026. Program eligibility and terms are confirmed by a specialist for your specific home; this page is not a final eligibility decision.

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