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AfterFast, Reliable Solar Battery Storage & Backup Across Lewisville
If you live in Lewisville and you’re tired of watching the meter spin during Oncor’s summer peak pricing, a solar battery is the fix. Solar Battery Storage & Backup lets you store the power your panels make all day and use it after dark, when grid rates climb and when the next thunderstorm knocks out the feeders. Gus’s Solar has been installing Tesla Powerwalls, Enphase IQ Batteries, and FranklinWH systems across 75057, 75067, 75077, and 75029 for years. Call (877) 550-6892 and a live person answers, 24/7.
Why Gus’s Solar Is Lewisville’s Preferred Solar Battery Storage & Backup Company
You’ve probably noticed the door-knockers working Lewisville’s older streets off Main and Mill. They quote a battery in ten minutes and vanish. Gus Petrakis runs a different shop. He has had his name on the building since 2011, and that name goes on every quote, every permit application, and every panel we swap in this city. When a Lewisville homeowner calls to ask why their battery isn’t charging, Gus’s crew shows up with the answer, not a ticket number.
We know the houses here. The 1970s brick-veneer ranches off Valley Ridge Blvd. The 1990s two-stories in the 75077 ZIP. The acreage properties east of 35E where a detached workshop and a well pump each pull their own circuit. That local knowledge changes the job. It means we check the service panel before we quote a battery. It means we know which Oncor retail electric providers actually credit battery exports. It means no surprises at permit time.
Lewisville homeowners want a name they can verify. Gus Petrakis publishes his address, his license number, and his phone. You call, he answers. That is the whole business model.
Our Solar Battery Storage & Backup Services in Lewisville
Tesla Powerwall Installation
A Tesla Powerwall 3 installed in Lewisville runs from roughly $13,500 to $16,500 before any local rebates or federal tax credit. That price assumes a straightforward main-panel tie-in. In the 75057 core, we regularly add a 200-amp panel upgrade to that figure because so many homes still run original 100-amp service built when the Beatles were still together. We map every load before we quote so the number you see is the number you pay.
Enphase IQ Battery Installation
The Enphase IQ Battery 5P is a smart fit for Lewisville’s midsize ranch homes: it is modular, so you can start with 5 kWh and add a second unit later when your needs change. Typical installed cost here runs $9,000 to $12,500 per unit. For an existing Enphase microinverter array, the pairing is nearly plug-and-play with the System Controller 3G. We have installed these on everything from 1970s single-stories in 75057 to 2000s tracts in 75077.
Whole-Home Backup Power
Whole-home backup in Lewisville means the well pump keeps pulling, the HVAC keeps cycling during a July heat advisory, and the detached workshop still has lights when Oncor’s feeders trip. A two-battery system sized to cover a typical 2,400-square-foot Lewisville home runs $22,000 to $31,000 installed, including a sub-panel and automatic transfer switch. We design the backup circuit map from the main service entrance, not from a guess. That matters on acreage properties where the workshop sits on a sub-panel 60 feet from the house.
Battery Retrofit for Existing Solar
Most Lewisville solar arrays we see were installed between 2016 and 2021, before batteries were common. Retrofitting a battery onto an existing SolarEdge or Enphase system is the single most requested job we do in 75067 and 75057. A single-battery retrofit typically runs $10,500 to $14,000 depending on inverter compatibility and whether a panel upgrade is needed. We inspect the existing inverter model, confirm firmware, and map the backup loads before we quote a dollar. No re-quotes later.
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 Lewisville
We install and service Tesla Powerwall, Enphase, FranklinWH, and Panasonic battery systems in Lewisville. That is not a brochure list. It means our trucks carry the breakers, transfer switches, and commissioning equipment for these brands, so we are not waiting on a distributor when your system throws a fault code on a Friday afternoon. If you already have a Canadian Solar or JinkoSolar array pushing power to the grid during peak sun, we can pair it with the right battery and make that stored energy actually count against your bill.
Common Solar Battery Storage & Backup Problems We See in Lewisville Homes
- 100-amp legacy panels stalling the whole job. In the 75057 core, most homes still carry the original 100-amp panel from the Carter or Reagan era. A battery system legally requires 200-amp service before Oncor will process interconnection. That is a $2,000 to $3,500 line item no national sales call will mention.
- Federal Pacific Stab-Lok and Zinsco panels hiding behind the meter. These are fire-hazard brands, discontinued decades ago but still live in older Lewisville homes. If our electrician spots one during the site survey, the panel replacement is mandatory, not optional. We disclose it on day one, not at the permit office.
- Batteries sized for the house but not the outbuildings. Lewisville acreage properties often have a detached workshop, a well pump, or both on a sub-panel. If the backup circuit is not physically separated at the main service entrance, those loads go dark during an outage. We map the sub-panel before we design the backup.
- Wrong retail electric provider eating the bill credit. Lewisville sits in Oncor’s deregulated territory. Choose the wrong REP and your battery’s exported power earns almost nothing on the true-up. We walk every customer through picking a solar-buyback-friendly plan so the math actually works.
Pricing for Solar Battery Storage & Backup in Lewisville, TX
A single battery install in Lewisville runs $10,500 to $16,500 depending on brand and whether your panel needs an upgrade. A two-battery whole-home system runs $22,000 to $31,000. The biggest swing factor here is not the battery. It is what we find behind your meter. A 1982 ranch off Valley Ridge with a Federal Pacific panel will cost roughly $2,800 more than a 2005 tract home in 75077 with 200-amp service already in place. We tell you that before you sign anything. Bring us your Oncor bill, we will build the math off your actual usage and export rates. 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 Lewisville
Our crews run batteries in Lewisville and the towns around it: Highland Village, Lake Dallas, Flower Mound, and Coppell. Same owner, same crew, same 90-Day Done Right Promise on every job. Call and ask for Gus.
Serving Lewisville, TX - Our Local Coverage Area
We’re based in the Lewisville 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 Lewisville
Yes, in most 75057 homes built before the mid-1990s, the existing 100-amp panel must be upgraded to 200-amp service before Oncor will approve battery interconnection. Expect $2,000 to $3,500 added to the job depending on how much rewiring and meter-base work is needed. Call (877) 550-6892 and we will check your panel during a free site survey before you commit to anything.
In Lewisville’s deregulated Oncor territory, no single provider is universally “best,” but solar-buyback-friendly REPs like certain green-energy providers and some co-op-affiliated retailers offer true 1-to-1 export credit at specific times. The wrong REP will pay you almost nothing and wreck your payback math. We walk every Lewisville customer through current provider options during the design phase.
Yes, but only if the backup circuit is physically separated at the main service entrance. A workshop fed from a sub-panel will lose power during an outage unless we install a second transfer switch or a main-panel load center designed for whole-feed backup. We map every sub-panel before we quote, so you know exactly what stays powered. Call (877) 550-6892 to schedule a site visit.
Hail does not damage lithium iron phosphate batteries directly since they live indoors or in a protected outdoor housing, but hail frequently destroys solar panels and roof decking, and a battery installed before a re-roof means paying twice for panel removal and reinstallation. In Lewisville, we often time battery installs to coordinate with insurance-covered re-roofs after hailstorms so you only pay for the panel lift once.
The feature that matters most is the storm watch mode that pre-charges the battery before severe weather, since Lewisville sits in a high-thunderstorm corridor with frequent feeder outages. Also important: the powerwall’s surge capacity to start older HVAC compressors and well pumps. For 1980s ranches with single-pane windows and modest energy loads, one Powerwall 3 is usually sufficient for critical circuits.
Call Gus’s Solar for Battery Storage in Lewisville
You want a battery that works when the power goes out and a number that does not change when the permit gets pulled. That is what we deliver in Lewisville. Call (877) 550-6892 and ask for Gus. Bring us a bill, we will bring you the math. The estimate is free, and a live person answers 24 hours a day. If a salesman needs an answer tonight, the answer is no. Take your two weeks.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Lewisville and the surrounding communities with straight answers and honest numbers since 2011.