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Fast, Reliable Solar Battery Storage & Backup Across Winton
A whole-home battery backup in Winton typically runs $13,500 to $21,000 installed, with most retrofits to existing solar landing between $9,000 and $16,000. We’re out here regularly sizing systems for manufactured homes, where mounting is the real challenge most installers never think about. That’s exactly why Winton homeowners call us instead of a crew from two counties over. Call (877) 550-6892 with your last three months of PG&E bills and we’ll give you a straight answer on what backup power will actually cost here.
Why Gus’s Solar Is Winton’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis founded Gus’s Solar in 2011 and put his own name on the trucks, the building, and every estimate that leaves his desk. That matters in a town like Winton, where word travels fast through the farmworker community and anyone who overpromises learns quickly that reputation is the only currency that holds. Our Solar Battery Storage & Backup team has spent years working the 95388 ZIP, and we know from experience that most Winton jobs are not standard. They are manufactured homes, older mobile homes, and modest ranch-style houses that need a different approach than what works in Merced or Atwater.
Our response time to Winton is same-day in most cases, and a live person answers our phone 24 hours a day. That means when a winter storm takes out power on Santa Fe Drive or a summer brownout rolls through, you are not leaving a voicemail. You are talking to someone who can actually do something about it.
The 90-Day Done Right Promise applies in writing to every battery job we do in Winton. If something is not right, Gus comes back and makes it right. No argument, no ticket queue, no national call center. Just a guy whose name is on the work.
Our Solar Battery Storage & Backup Services in Winton
Tesla Powerwall Installation
A Tesla Powerwall 3 in Winton runs $13,500 to $17,500 installed before incentives, depending on whether you are pairing it with new solar or retrofitting an existing array. On Winton’s manufactured homes, we almost never mount Powerwalls on exterior lightweight walls without first checking the framing. Wall-mounting on an unbraced 1970s mobile home wall is a recipe for sagging, vibration issues, and eventual failure. We do load calculations on every job, and sometimes that means a ground-mount stand or an interior reinforced partition instead. We would rather tell you the truth than sell you a mounting failure.

Enphase IQ Battery Installation
The Enphase IQ Battery 5P is the most common battery we install in Winton, largely because its modular weight and smaller footprint work better on manufactured and mobile home structures. A single 5P unit runs $6,500 to $9,000 installed; a pair runs $11,000 to $14,000. We recently upgraded a 1980s HUD-code single-wide near Winton Elementary with an IQ Battery 5P wall-mounted on a reinforced interior partition, paired to an existing 4 kW solar array. The county permit process took two extra weeks because all paperwork ran through Merced County Building, not a city office, and the homeowner needed a full SASH income-qualification review before signing. In the end, we made sure the rapid shutdown wiring met county fire code and left the homeowner with whole-home backup for the frequent tule fog outages.

Whole-Home Backup Power
Whole-home backup for a typical Winton manufactured home needs 10 to 13.5 kWh of storage, which usually means two Enphase IQ Battery 5P units or one Tesla Powerwall 3. You would expect to pay $14,000 to $21,000 for a properly engineered system with automatic transfer. The thing to understand about Winton specifically: your backup has to be sized for tule fog season, not just summer. When December fog suppresses solar production for a week straight, a system sized on summer numbers runs dry by the third day. We size for the worst week of the year, not the best, and we will show you that math on your own bill.

Battery Retrofit for Existing Solar
Most Winton homes with existing solar are running older string inverter systems that were never designed for battery integration. Retrofitting one of these systems to add backup typically costs $9,000 to $16,000, depending on whether you need an inverter swap, a critical loads panel, or both. On manufactured homes, we often run into lightweight roof trusses that were never rated for the additional load of more panels, so the battery retrofit path is usually the better investment than adding modules. It is also the single best way to make an existing solar system useful during the grid outages that hit this part of Merced County more often than people realize.

Time-of-Use & NEM 3.0 Optimization
Under PG&E’s current net metering rules, exported solar from a Winton roof is worth a fraction of what it once was. That makes a battery not just backup insurance, but the financial engine of a solar system. If you are on a time-of-use rate, your battery can store midday production and discharge during the 5 to 9 pm peak window, when PG&E charges the most. We help Winton homeowners program their Enphase or Tesla systems to do exactly that automatically. For many of our customers, that is the difference between a solar system that pays for itself in 9 years and one that pays for itself in 14.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Winton
We install and service Tesla, Enphase, SolarEdge, SunPower, FranklinWH, and Panasonic battery systems in Winton, and we keep most common replacement parts in stock locally so you are not waiting on a slow freight order. FranklinWH has become a quiet favorite in this area because its aGate architecture tolerates the frequent voltage swings we see on older rural distribution lines. If you already own a battery system from any major brand, we can service it, expand it, or replace it. We will not tell you to rip out a working system just to sell you a new one.
Common Solar Battery Storage & Backup Problems We See in Winton Homes
- Powerwalls sagging on unbraced manufactured home walls. Lightweight 2×3 and 2×4 framing in older mobile homes simply is not rated for a 250-pound wall-mounted battery. We reinforce the wall or move the unit to a ground or interior mount. National installers skip this step regularly, and the result is visible within months.
- Underperforming backup reserves from tule fog. Winton sits on the San Joaquin Valley floor, and dense fog from December through February can suppress solar production for weeks at a time. If your battery was sized on summer output, your backup reserve drains faster than expected during exactly the season when outages are most likely. We size for the fog, not the brochure.
- Agricultural dust choking panel output and slowing battery recharge. Surrounding dairy farms, almond orchards, and row-crop operations generate constant dust that soils panels faster than in nearby urban Merced. That dust cuts recharge rates, which quietly drains backup capacity. We set panel tilt angles and cleaning schedules specifically for Winton’s conditions.
- Failed rapid shutdown compliance on retrofit jobs. Merced County fire code requires rapid shutdown tests on every battery retrofit. Out-of-area installers who normally work in city jurisdictions miss this inspection item, fail, and leave the homeowner with an unapproved system. We know the county’s process and we get it right the first time.
Pricing for Solar Battery Storage & Backup in Winton, CA
Here are the numbers we quote in Winton. A single Enphase IQ Battery 5P retrofit runs $6,500 to $9,000. A Tesla Powerwall 3 with installation runs $13,500 to $17,500. Whole-home backup with two batteries runs $14,000 to $21,000. Retrofits to older string-inverter systems add $1,500 to $4,000 depending on equipment needed. The variables in Winton are almost always structural: what your walls can hold, whether you need a ground-mount stand, and how much backup capacity your fog-season production can actually support. Bring us a bill and we will bring you the math. Call (877) 550-6892 for a free estimate. Take two weeks to think about it. The price will be the same.
We Also Serve Cities Near Winton
Our Winton crew regularly works in Atwater, Livingston, Delhi, and Merced, and the same pricing and same-day response applies across the county. If you live just outside the 95388 ZIP, call and ask. We will give you an honest answer about timelines and service areas before you spend a dollar.
Serving Winton, CA - Our Local Coverage Area
We’re based in the Winton 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 Winton
Because Winton is unincorporated, every solar and battery permit runs through the Merced County Building Department rather than a city office, and that process typically adds one to three weeks compared to working inside Merced or Atwater city limits. We handle the full permit package in-house and budget for the county’s slower inspection scheduling from day one. Out-of-area contractors routinely get this wrong and leave homeowners waiting weeks longer than promised. Call (877) 550-6892 and ask us for a realistic timeline for your specific property.
Usually no, not directly on an exterior wall without reinforcement. Older HUD-code mobile homes use lightweight 2×3 or 2×4 framing that was never designed to carry a 250-pound battery. We perform a structural assessment on every Winton manufactured home before quoting a Powerwall, and in most cases we recommend either an interior reinforced partition mount or a ground-mount stand instead. The cost difference is modest, and it keeps the wall from sagging within a year. For an exact answer on your home, call us for a free structural review.
Yes, and this is the single most important sizing factor for backup power in Winton. Dense tule fog from December through February can cut solar production by 60 to 80 percent for weeks at a time, which means a system sized on summer output may not fully recharge your battery for days. We size battery capacity and solar input for the worst fog week of a typical year, not the best summer day. If an installer quotes you a system without asking about fog-season production, that is a red flag. For a fog-season sizing review of your specific array, call (877) 550-6892.
Yes. Winton is a low-income, largely farmworker community, and many households qualify for California’s SASH and DAC-SASH incentive programs that cover a significant portion of solar and battery costs. Most neighboring cities’ installers rarely touch these programs because the paperwork is slow and the margins are thin. We process SASH and DAC-SASH applications for Winton customers every month, and we will walk you through income verification, the county permit path, and what your final out-of-pocket number actually looks like. Call (877) 550-6892 for a free eligibility check.
In Winton, we recommend cleaning panels every four to six weeks during the dry season from May through October. Agricultural dust from surrounding dairies, almond orchards, and row-crop operations accumulates on panels significantly faster here than in nearby urban Merced, and a dirty array can cut production by 15 to 25 percent. That in turn slows battery recharge and drains your backup reserve. We offer panel cleaning as a standalone service, and many of our battery customers schedule it quarterly. For a quote on a cleaning schedule that matches your property’s dust exposure, call (877) 550-6892.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Winton with local roots, on-time work, community-first pricing, accountable warranties, and a loyal customer base since 2011.
Ready for straight answers on battery backup in Winton? Call (877) 550-6892. A live person answers, 24 hours a day. No high-pressure closing, no signature wanted tonight. Just real numbers from someone whose name is on the work.






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