When the Grid Goes Down,
Your Home Doesn't

This isn't about keeping the TV on during a storm. It's about the systems your family can't live without.

Air conditioning. In a summer heat wave, losing AC turns your home into a danger zone within hours. Children, elderly family members, and pets are at immediate risk. Battery backup keeps your cooling system running — not on a generator timer, but continuously, powered by sunlight.

Medical equipment. CPAP machines, oxygen concentrators, insulin refrigeration, nebulizers — these aren't optional. If someone in your household depends on powered medical equipment, a grid outage is a life-threatening event. Battery backup eliminates that risk entirely.

Security and communication. When the grid goes down, alarm systems, cameras, door locks, Wi-Fi, and cell phone chargers all go with it. Your family loses both protection and the ability to call for help. A battery keeps every one of those systems live.

Food and water. A full refrigerator and freezer represent hundreds of dollars in groceries — and potentially the only food your family has access to during an extended outage. Battery backup keeps them running for up to two weeks with the right setup.

America's power grid is decades old and wasn't built for what it's facing today. Record heat waves, severe storms, and aging infrastructure are pushing it past the breaking point. When a major outage hits, utility crews are overwhelmed, emergency services are stretched thin, and the timeline for restoration is measured in days — sometimes weeks.

Losing power during a heat wave isn't an inconvenience. It's a medical emergency. Indoor temperatures can exceed 100°F within hours. CPAP machines stop. Refrigerated medications spoil. Security systems go dark. Your family is on their own.

The people who get through these situations without crisis aren't lucky. They're prepared.

During normal operation, your solar panels produce electricity. What your home doesn't use charges the battery. What the battery can't hold goes back to the grid for a credit on your bill. You're saving money every day — and building a reserve for when it matters most.

When the grid fails, the system isolates your home from the utility within milliseconds. The battery takes over as your home's power source. If it's daytime, your solar panels keep producing and recharging the battery while your home runs on stored energy. The cycle repeats every morning.

This is the fundamental difference between a battery and a generator. A generator burns through a finite fuel supply and then it's done. A solar + battery system renews itself every sunrise. In the right conditions, that means your home can stay powered and protected for up to two weeks — completely independent of the grid, the gas station, and anyone else.

There's no single fixed number — it depends on your battery's size, how much you're running, and whether panels are recharging it in daylight. A right-sized system typically covers essentials (refrigeration, Wi-Fi, phones, and some air conditioning) for the length of most outages, and stretches across multiple days when usage is managed. Unlike a generator's fuel tank, it resets every morning the sun comes up.

Southern Nevada adds its own version of this pressure. Nationally, major weather-related power outages rose 67% from 2000–2023, with the most recent decade tracked seeing roughly twice the outages of the first decade (Climate Central). Locally, NV Energy's grid carries extra summer strain from extreme AC demand across a fast-growing customer base — the specific data on that risk is in our NV Energy blackout-risk breakdown.

There's also a money reason to run your battery on your own power instead of exporting it: NV Energy credits new solar exports at a flat 75% of retail under its tiered net metering structure (a 20-year rate lock once you sign up). A battery lets you use your own stored power at full value instead of selling it back at a discount — on top of whatever it's doing for you during an outage. Full mechanics on how NV Energy net metering works.

One more thing worth knowing before you assume solar alone has you covered: grid-tied solar panels are required to shut off during an outage if you don't have a battery — a safety rule, not a defect. The battery is what turns "the power's out" into "the power's out for everyone else."

There's a growing number of homeowners who've made a simple decision: they're not going to depend on a centralized grid for something as fundamental as electricity. They're not waiting for a crisis to act. They're getting ready now.

If you've ever lost power for more than a few hours, you know the feeling. The food in the fridge. The temperature in the house. The kids asking when it's coming back. The uncertainty. Battery backup eliminates that anxiety permanently.

If someone in your household depends on medical equipment, an outage isn't a nuisance — it's a threat. CPAP, oxygen, powered medication storage — these are non-negotiable. Battery backup makes them bulletproof.

If you believe your family's safety is your responsibility, not the utility's, solar + battery backup is the most practical step you can take. It doesn't require lifestyle changes, off-grid plumbing, or a bunker. It's a system that sits on your wall, charges from your roof, and keeps your family safe when the grid can't.

The best time to prepare was before the last outage. The second best time is now.

How long will a home battery power my house during an outage?

It depends on your battery size, how much power you're using, and whether the sun is out to recharge it. A right-sized solar + battery system typically covers essentials — refrigeration, Wi-Fi, phones, some air conditioning — for the length of most outages, and can stretch across multiple days when usage is managed and panels recharge it each morning. Unlike a generator, it doesn't run out of fuel; it resets with the sunrise.

Is solar battery backup better than a generator?

For most Las Vegas and Henderson homeowners, yes for day-to-day practicality: a battery is silent, starts automatically, needs no fuel runs, and recharges itself from sunlight. A generator can supply more continuous power for longer if you keep it fueled, but it's loud, needs manual startup, and carries a carbon monoxide risk a battery doesn't.

Does solar still work during a power outage without a battery?

No. Grid-tied solar without a battery is required to shut off during an outage — an anti-islanding safety rule (IEEE 1547, incorporated into NV Energy's own interconnection tariff) that protects utility line workers from backfeeding power onto lines they think are dead. A battery is what lets your home keep running when the grid goes down. See the full breakdown on our solar-during-outages FAQ page.

How much does solar battery backup cost?

It varies by system and installer, which is why Solar Resource USA runs the comparison rather than quoting a flat number. Every SRU customer can add a Tesla Powerwall 3 with approximately $5,200 in savings vs. typical retail — the most competitive Powerwall 3 pricing in Nevada and Arizona — available whether you pay at signing or wrap it into your subscription plan's monthly payment.

Can I get battery backup at no cost through the Advertising Home Program?

A select number of homes in SRU's active service area may qualify for the Advertising Home Program: Tesla Powerwall 3 access at SRU's negotiated pricing — about $5,200 in savings vs. typical retail — in exchange for hosting one small yard sign for a year. It's entirely passive with no obligation to talk to neighbors; your specialist confirms eligibility when reviewing your report.

How real is the power outage risk in Las Vegas and Henderson?

Nationally, major weather-related power outages rose 67% from 2000–2023, with the most recent decade tracked seeing roughly twice the outages of the first (Climate Central). Southern Nevada adds its own pressure: summer grid strain from extreme AC demand and a fast-growing customer base. See our NV Energy blackout-risk page and Las Vegas grid reliability and power outage guide for the Nevada-specific data.