Already Have Solar? Add a Battery and Stop Sending Power Back for Pennies.
In Arizona, the power your panels export earns a low — and shrinking — export rate (net billing), far less than you pay to buy it back. And on demand-rate plans, your peak draw drives the bill. A battery lets you store cheap off-peak and daytime solar energy, use the power you make to knock down your expensive on-peak power and shave that demand peak — and keep the lights on when the grid goes down. Free, sized-to-your-system quote back in one business day.
Get My Free Battery Quote
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Free, no-pressure quote · exact price + payback in writing before you commit a dollar · installed by SouthFace, Arizona since 2008 · ROC #249187.
📞 Call Us — 480-405-6105Two reasons people add a battery — and they’re sized differently
Most companies only talk backup. We start with what actually pays for the battery.
Cut your bill with peak shaving
Your solar panels make energy (kilowatt-hours). The expensive part of your bill is power — the demand charge is a charge on the highest power you pull from the grid in any 15 minutes, plus a premium price on every on-peak kilowatt. A battery stores cheap off-peak and daytime solar energy, then discharges it to flatten those expensive on-peak power spikes. That’s peak shaving, and it’s the economic engine — it’s what actually pays the battery back.
Keep the lights on: backup power
When the grid goes down, a properly configured battery keeps your essentials — or your whole home — running. It’s the peace-of-mind reason most people start here. We size the backup reserve to what matters to you.
The sizing truth: Here’s the honest part most installers skip: to do BOTH well, the battery has to be sized large enough to shave your peak AND hold a backup reserve. Some homeowners only want bill savings. Some only want backup. Many want both. The right size depends on your goal and how we configure it — so the first thing we ask is: what are you trying to accomplish? Tell us your goal and we’ll size it right.
How it works
Free quote, sized to your system.
Tell us your goal — lower your bill, backup, or both. We look at your system and your utility’s rate plan and quote a battery sized for it, with current Arizona incentives applied.
We handle the paperwork.
Permitting, utility interconnection, incentive forms, AC/DC coupling to your existing solar — we take care of all of it. You don’t chase anything.
Install & activate.
Our own crew installs it — no subcontractors — and sets it up the way you chose. Then it just works.
Arizona homeowners trust SouthFace
500+ Arizona installs & counting — and we service and keep an eye on the systems we put in, including the batteries other shops won’t touch.
Common questions
It depends on your goal and how big a system you need — peak-shaving only, backup only, or both size differently. We quote it sized to your system with current incentives applied, and you get the exact price and payback in writing before you commit.
Yes. We add batteries to existing solar — any brand — and handle the AC or DC coupling for you. If your original installer is gone, we’ve got you.
There’s a federal tax credit on battery storage, and we apply any current Arizona/utility incentives to your quote. We’ll walk you through the financing and the paperwork.
It can — or just your essentials. That’s a sizing choice we make with you based on your goal and budget.
Stop exporting your power for pennies. Get a battery sized to your goal.
Get My Free Battery Quote →or call us at 480-405-6105 · Free, no-pressure · exact price + payback in writing first · installed by SouthFace since 2008.