Free bill analysis - bring a power bill, get the production math for your actual roof, panel brands like Qcells and REC compared side by side
If the pitch starts at your door and ends with "sign tonight for the special," sleep on it. The sun will still be there tomorrow; so will we.
Fast, Reliable Solar Battery Storage & Backup Across Ceres
Solar battery storage in Ceres runs $9,500 to $16,500 installed for a typical single-battery retrofit, and our crew can usually be at your door within 48 hours of your call. If you’re tired of PG&E’s peak rates chewing through your bill every summer evening, or you want backup power for the next time a valley heat wave strains the grid, you want someone who knows Ceres roofs, Ceres panels, and Ceres dust. Gus Petrakis has been putting his own name on solar work since 2011, and that name means more in a town like this than any billboard ever could. Call (877) 550-6892 and get a straight answer.
Why Gus’s Solar Is Ceres’s Preferred Solar Battery Storage & Backup Company
Most of our Ceres customers come to us after a door-knocker quoted them one number and the paperwork showed another. That doesn’t happen here. Gus publishes his address, his license number, and his cell phone. When you call, a live person answers. Not a call center in another state. Not a voicemail that goes cold for three days. That matters when your battery throws a fault code at 9pm and you want to know if your food is safe.
We’ve worked on Ceres homes long enough to know the patterns. The 1980s ranch with an original 100-amp panel that won’t accept a whole-home backup without an upgrade. The 1990s garage where summer heat soak trips the inverter. The composition shingle roof that’s honestly done, and anyone who mounts a battery system without saying so is setting you up for a $4,000 tear-out-and-reinstall later. Our team drives Ceres roads weekly, from Whitmore Avenue down to Service Road, and we quote the work like we’ll see you at the hardware store next week. Because we probably will.
Our Solar Battery Storage & Backup Services in Ceres
Tesla Powerwall Installation
A Tesla Powerwall 3 installed in Ceres typically runs $11,000 to $16,500 before any applicable incentives. We handle the full job: panel compatibility check, load calculations, PG&E interconnection paperwork, and the install itself. If your existing solar was put in before 2020, we’ll check whether your inverter can talk to the Powerwall correctly or if you need additional hardware. We don’t guess at that. We test it.

Enphase IQ Battery Installation
Enphase IQ Battery systems are a strong fit for the smaller ranch homes that dominate Ceres. They modularize cleanly, so you can start with a 5P and add capacity later if your usage changes. Typical installed cost for a single 5P runs $4,500 to $6,500 on top of any needed microinverter or combiner upgrades. For homes east of Mitchell Road where shading is less of a factor but heat is worse, the IQ Battery’s passive cooling design holds up better in unventilated attached garages than some bulkier alternatives.

Whole-Home Backup Power
Whole-home backup in Ceres usually means pairing a FranklinWH aGate with one or two aPower units, or a pair of Tesla Powerwalls. Figure $18,000 to $28,000 depending on your panel configuration and whether we’re backing up central air. On a 1970s home with a 100-amp main panel, plan on a service upgrade running $2,800 to $4,500 before the battery work starts. We’ll tell you that on the first visit, not the third.

Battery Retrofit for Existing Solar
Battery retrofits are the most common Solar Battery Storage & Backup job we do in Ceres. Your panels already exist. The question is whether they’re still producing what the original installer promised, and whether your inverter will play nice with modern battery controls. We see a lot of 2010-era string inverters that need replacement before a battery makes sense. That’s part of the quote, not a surprise add-on.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Ceres
We install and service Tesla, Enphase, and FranklinWH battery systems across Ceres. If you already have a SolarEdge inverter on your roof, we’ll work with that too, though we’ll be honest about whether it’s the right long-term foundation for storage. Parts availability matters more an hour from a distribution hub than it does in Modesto, so we stock common components for the brands we install most. That means a Tuesday fault isn’t a two-week parts wait.
Common Solar Battery Storage & Backup Problems We See in Ceres Homes
- Heat-soak inverter shutdowns: That 1990s attached garage hitting 110°F in July causes inverters to throttle or trip. When the inverter trips rapid shutdown, your battery sits stranded and useless. We relocate, ventilate, or replace the inverter as part of the install.
- Undersized backfeed breakers in 1970s panels: Original split-bus and 100-amp panels frequently reject whole-home backup systems until upgraded. We identify this in the estimate and include the upgrade cost, because a battery that can’t pass inspection helps nobody.
- Roof decking rot under composition shingles: On Ceres ranch homes of this era, it’s common enough that we check attic sheathing before quoting any retrofit that touches the existing solar array. Finding dry rot after a battery is installed means a re-roof interrupts everything, and that’s a cost no homeowner should absorb twice.
- Almond dust cutting panel input to the battery: A battery charges off your panels. If those panels are losing 15-20% to dust film by August, your battery charge window shrinks with it. We size storage honestly against soiled-panel production, not the clean-panel number the original install promised.
Pricing for Solar Battery Storage & Backup in Ceres, CA
A battery retrofit on an existing Ceres solar array runs $9,500 to $16,500 for a single-battery system, depending on battery brand and whether we’re replacing the inverter at the same time. Whole-home backup runs $18,000 to $28,000, including any panel upgrades. Panel upgrades alone run $2,800 to $4,500 for the 100-amp to 200-amp conversions most Ceres homes need. Every quote is built off your actual utility bill and actual panel production data, not a brochure. Bring me a bill, I’ll bring you the math. Take two weeks and think about it. The price will be the same when you’re ready. Call (877) 550-6892 for a free estimate.
We Also Serve Cities Near Ceres
Beyond Ceres, our crews work regularly in Keyes, Bret Harte, Hughson, and Modesto. Different towns, different soils, different roof ages, same standard: the owner’s name is on the truck and the price is the price. If you’re a few miles outside Ceres, call us anyway. We’ll send someone out from our Central Valley office and tell you the truth about your system.
Serving Ceres, CA - Our Local Coverage Area
We’re based in the Ceres area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Solar Battery Storage & Backup in Ceres
Almond-harvest dust and dairy particulate can cut panel output entering your battery by 15-20% by late summer in Ceres, which means a battery sized clean in spring under-charges by August unless we account for it up front. That’s why our proposals reset panel production estimates using local soiling data, not manufacturer spec sheets. If your system came from an out-of-town installer who never mentioned dust, call (877) 550-6892 and we’ll run the real numbers for free.
No, but tule fog from December through February measurably suppresses daytime solar production in Ceres, so your battery will spend more winter nights drawing from the grid than it does in summer. We model this honestly in PVWatts-adjusted estimates. A battery doesn’t stop working in fog. It just charges slower, and you should know that before you buy.
Yes, provided your roof decking is sound and your existing solar array doesn’t need to be lifted for re-roofing any time soon. On Ceres homes from the 1970s through the 1990s, we inspect the attic sheathing and roof condition before quoting any battery work that touches the existing array. If the roof is at end of life, re-roofing first is cheaper than battery first, then re-roof, then reinstall. Call (877) 550-6892 and we’ll inspect it and tell you which order makes sense for your house.
NEM 3.0’s export rates are lower across the board, but Ceres homeowners tend to have smaller roof footprints limited by 1970s-1990s single-story ranch designs, so they export less surplus generation to begin with. Combine that with PG&E’s high residential rates and a working-class, fixed-income homeowner base, and the payback math tightens quickly. A properly sized battery with Time-of-Use optimization recovers more value by shifting your own generation to evening peaks instead of selling it back cheap. That’s the whole game now.
Yes. If your panels lose 15-20% production to almond and dairy dust by late summer, your annual generation drops, and your PG&E true-up balance owes more than the original proposal predicted. That’s why we include annual cleaning as a real maintenance line item for Ceres systems, not an upsell. Systems without a maintenance agreement lose production in exactly this pattern. Call (877) 550-6892 and ask about cleaning schedules tied to your actual array orientation and dust exposure.
Call Gus’s Solar for Solar Battery Storage & Backup in Ceres, CA
If you live in Ceres, 95307, and you’re done with the high-pressure pitch, call (877) 550-6892. A live person answers. We’ll send a background-checked crew in a truck with Gus’s name on it, quote you real year-25 numbers off your actual bill, and tell you honestly whether a battery makes sense for your house on your street. No signature wanted tonight. No sub-contracted labor. Just the owner, his crew, and a price that won’t change.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Ceres and the Central Valley since 2011.






Before
After
Before
After
Before
After