Two Tesla Powerwall 3 home batteries installed in a residential garage

Backup power

When the grid fails, your house doesn't.

Oregon outages don't ask permission. Ice storms, windstorms, and wildfire-season shutoffs all take the grid down without much warning. And if you have solar without storage, every kilowatt-hour you make but don't use leaves the house the moment it's produced. A battery solves both: backup power when the grid fails, and your own production on tap when the sun isn't out.

A home battery switches over automatically when the power goes out. No cords, no fuel cans, no trip to the breaker panel in the dark. The refrigerator, the furnace fan, the lights, the internet: the circuits you choose stay on.

How long it carries you depends on the capacity you install and what you're running, which is exactly what we size for during a free site evaluation.

Size a battery for your home

Battery + solar

Solar fills it by day. You spend it by night.

Paired with a solar system, a battery stores your afternoon surplus and serves it back in the evening, so more of what your roof makes gets used inside your own walls. Oregon's 1:1 net metering still credits whatever you send to the grid. The battery just gives you a second place for that energy to go.

How the credits and incentives stack up is covered in our guide to Oregon solar incentives.

How our solar installs work

Rooftop solar panels that can charge a home battery in Oregon

Equipment & sizing

What goes on the wall, and who stands behind it.

Battery brands

We install battery brands offered, chosen for fit with your home and your solar equipment, not for sales quotas.

Capacity sizing

Sized to what you actually need backed up, whether that's essential circuits only or the whole house. No oversold capacity you'll never use.

Warranty

Batteries we install are covered by a manufacturer warranty of battery warranty terms, plus our workmanship warranty of workmanship warranty years.

The plan

Adding a battery takes three steps. We handle the hard two.

From first call to switch-over, most projects finish in about eight weeks.

Free evaluation

We look at your panel, your usage, and what you need to stay on, then size a battery to match.

Design & permits

Electrical design, permitting, utility paperwork, and incentive applications, all done for you.

Install & power on

Most installs take 1–2 days. We test the switch-over before we leave.

★★★★★

"We had a fantastic experience working with Sunward to install panels and a whole home battery system. We settled on the right system for our needs, then they handled the logistics of permitting and rebates while keeping us in the loop. The crew that did the physical install were quick, careful, and obviously competent. Later when a lineman was a bit lost installing the bidirectional breaker I was able to quickly get Sunward on the phone and they walked him through the system."

Zach Brown Google review · July 2024 · panels + whole-home battery

Common questions

What homeowners ask us about batteries.

It depends on the capacity you install and what you're running. A refrigerator and lights draw far less than an electric furnace. For the systems we install, typical backup runtimes are typical backup durations by battery size. We size for your real loads during the evaluation, not a brochure scenario.

Usually, yes. We check your inverter setup and electrical panel first. Some systems pair directly, others need an adapter or a panel upgrade. If someone else installed your solar, we can still evaluate it and give you a straight answer.

Cost tracks capacity, which comes down to how many kilowatt-hours you want on hand and whether you're backing up essential circuits or the whole house. A free site evaluation gets you a real number, and we'll walk you through how Energy Trust rebates and other Oregon incentives apply to your project.

No. A battery can charge from the grid and stand alone as backup power. We'll tell you plainly whether one fits your situation.

See all frequently asked questions →

Free tool

What could solar do to your bill?

Drop in your average monthly power bill and see your estimated system size, your new bill, your Energy Trust rebate, and your long-term savings, in about ten seconds.

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Free site evaluation

Find out what it takes to keep your home on.

A 30-minute visit. A battery sized to your real loads. A straight answer on whether storage pencils out for your home, even if that answer is "not yet."

Schedule my evaluation Call 971-339-0123