What it is
Power outage backup power means having a second source of electricity ready when the grid goes down. It can be small, like a battery that keeps a few lights and a phone charger running, or large enough to run a refrigerator, well pump, heating and cooling equipment, and more.
Common sources include portable or standby generators that burn fuel, and home batteries that store electricity for later use. Batteries can be recharged by the grid, by solar panels, or both, depending on how the system is designed.
One point surprises many homeowners: a standard grid-tied solar system typically shuts off during an outage as a safety measure for utility workers. Keeping the lights on generally requires storage, a backup-capable inverter, or another purpose-built design.
How it’s traditionally been approached
For many years, the usual answer to outages was a fuel-powered generator. Portable units are plugged in or connected through a properly installed transfer arrangement, while standby units are permanently installed and start automatically.
Others rely on simpler preparations: flashlights, stored water, camp stoves, power banks, and a plan for food in the refrigerator. These steps cost little and still matter, even for homes with more advanced systems.
More recently, homeowners have added solar panels with batteries so backup power can run quietly without refueling. Each approach has trade-offs in fuel storage, noise, maintenance, runtime, and upfront cost, and none is right for everyone.
How the right solar installer may help
The right solar installer may help you sort out what you actually need to power. A visit often starts with questions about your home, your electrical panel, your roof, and which loads matter most during an outage, such as refrigeration, medical devices, internet, or well water.
You can ask how the system would behave in an outage, whether it can run critical loads only or the whole home, how long it might run, and how it recharges. Ask who handles permits and utility interconnection, and what warranties and maintenance apply.
Ask for everything in a written quote, including equipment, scope of work, and financing terms. Costs, performance, and incentives vary by home, location, utility, and equipment, so confirm details with your state energy office, your utility, and the IRS or a tax professional before you sign. Installation involves high-voltage electricity and roof work, so it should be done by licensed, insured professionals following local codes.
The bigger picture
Outages can bring real stress, especially if someone in the home relies on medical equipment, works remotely, or has young children or elderly relatives. Knowing there is a plan can bring peace of mind and a stronger sense of self-reliance.
It also helps to weigh backup power as part of the bigger financial picture. A thoughtful decision balances comfort, budget, and long-term goals, and resources like Providers.plus can help you think through the wider picture. No single approach is right for every household.
Keep in mind
- This page is educational only and is not financial, tax, legal, or engineering advice.
- Grid-tied solar alone usually will not power your home during an outage; ask about storage and backup design.
- Beware of high-pressure sales and door-to-door pitches, and read every page of any contract, whether it is cash, a loan, a lease, or a power purchase agreement.
- Incentives and utility programs change often, so verify what is currently available before committing.
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Talk to a solar pro →Frequently asked questions
What is power outage backup power?
Power outage backup power is a source of electricity that keeps part or all of your home running when the grid fails. It may be a generator, a battery system, or solar panels paired with storage. The right choice depends on what you need to keep running and for how long.
Will my solar panels work during a power outage?
Not always. Standard grid-tied solar systems typically shut down during an outage for safety. To keep power flowing, a system generally needs battery storage or a backup-capable design, so ask a licensed installer how yours would work.
Is a generator or a solar battery better for backup power?
Neither is better for everyone. Generators run on stored fuel and need refueling and maintenance, while batteries are quiet and can recharge from solar but have limited stored energy. Many households compare both based on needs, budget, and preparedness goals.
How long can a home battery power my house in an outage?
It depends on battery size, what you connect to it, and how much sun is available to recharge it. Runtime varies widely by home and equipment, so ask for a written estimate based on your actual loads.
Can I install backup power myself?
Backup systems involve high-voltage electricity and must follow local codes, permits, and utility rules, so they should be installed by licensed, insured professionals. Never attempt DIY wiring on your home's electrical system.
Are there incentives for solar panel installation with backup batteries?
Federal, state, and utility programs have changed and may keep changing, so do not assume any are available. Confirm current details with the IRS or a tax professional, your state energy office, and your utility before signing anything.
Educational resource. 2A Solar shares general information and connects people with independent solar installers. It is not professional advice. Talk with a qualified professional about your own situation.