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Fast, Reliable Solar Battery Storage & Backup Across Lake Dallas
Adding a battery to your solar system in Lake Dallas usually costs between $9,500 and $16,800 before federal tax credits, and most installations finish in one to two days. We’re the local crew that shows up when hail season knocks out power off Hundley Drive or when a converted lake cottage’s aging panel can’t handle another breaker. Gus Petrakis put his name on this company in 2011, and a live person answers our phone 24/7. Call (877) 550-6892 for a straight answer about what your home actually needs.
Why Gus’s Solar Is Lake Dallas’s Preferred Solar Battery Storage & Backup Company
Lake Dallas isn’t a cookie-cutter suburb. The streets near the water hold 1950s weekend cabins converted to full-time homes. The newer infill sits on the same platted lots. Both need battery systems sized and wired for how Denton County weather actually behaves. We’ve worked on enough homes off Hundley Drive, along Parkridge, and in the Lakewood Hills area to know which houses need a panel upgrade before a battery ever mounts on the wall.
Gus’s crew arrives in uniform, background-checked, and driving trucks with his name on the door. No subs. No call center three states away. When a battery fault lights up at 2 a.m. during a July thunderstorm, the person who answers the phone works for Gus. That’s the difference a local owner makes. Our Solar Battery Storage & Backup work in Lake Dallas comes with the 90-Day Done Right Promise in writing. If something isn’t right, Gus comes back.
Our Solar Battery Storage & Backup Services in Lake Dallas
Tesla Powerwall Installation
A Tesla Powerwall in Lake Dallas typically runs $11,000 to $15,500 installed for the first unit, with each additional Powerwall adding roughly $8,000 to $9,500. We place the unit on an interior garage wall or an exterior wall that doesn’t face the lake where HOA review gets triggered. For homes on the platted lake-lot streets, we factor in the architectural review process before you spend a dime on permits.

Battery Retrofit for Existing Solar
Plenty of Lake Dallas homes already have solar arrays from years past. Many of those older systems use string inverters that don’t play nice with modern batteries. We retrofit Enphase and FranklinWH storage onto existing arrays, often without touching your HOA-approved panel locations. If your current system came from a company that no longer returns calls, we’ll sort out what’s salvageable and what needs replacing.

Whole-Home Backup Power
Whole-home backup for a 2,000-square-foot lake-era home in Lake Dallas generally lands between $18,000 and $26,000, depending on whether we’re stacking two batteries or pairing one battery with generator support. We calculate the load from your actual panel, not a brochure guess. For homes off Hundley Drive with electric heat and well pumps, the math changes. We walk you through it line by line.

Enphase IQ Battery Installation
The Enphase IQ Battery 5P is a good fit for the smaller rooflines common on converted lake cottages because it’s modular and doesn’t need a massive wall footprint. Installation in Lake Dallas usually runs $9,500 to $13,000. We pair it with microinverters that meet rapid-shutdown requirements, which matters when the array faces the lake and the wiring runs to a rear elevation.

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 Lake Dallas
We stock and service FranklinWH, Enphase, and Panasonic battery systems. That means when a Lake Dallas homeowner needs a replacement part or a diagnostic call, we aren’t waiting on a truck from Houston. FranklinWH’s aPower units hold up well in humid lake air, and we keep common components on hand for faster turnaround. Bring us a bill from your utility, and we’ll match the right battery to your actual usage pattern. Senior and veteran homeowners get a 10% discount that never expires.
Common Solar Battery Storage & Backup Problems We See in Lake Dallas Homes
- Aging 100-amp panels in converted weekend cottages. Many pre-1980 homes off Hundley Drive and near the water still run 100-amp service, which fails the interconnection application. We upgrade the main service to 200 amps before the battery install, so you aren’t stalled for weeks after signing.
- Rear-elevation arrays and HOA review triggers. On lake-facing lots, the best roof plane is often the back of the house. Adding a battery or expanding panels there can pull the architectural-review board into the process. We handle elevation drawings and color-matched conduit so the application moves without surprises.
- Humidity-driven corrosion on racking and MC4 connectors. Proximity to Lake Lewisville means localized moisture that bites aluminum hardware and connectors. We specify marine-grade hardware on every Lake Dallas job, which keeps inverter communication stable and prevents batteries from refusing to charge mid-outage.
- Hail-season outages on older grid infrastructure. Denton County sits in a severe hail corridor with golf-ball events multiple times per decade. When the grid drops, a battery without a proper transfer switch does nothing. We wire backup systems for whole-home or subpanel isolation based on what your house actually needs.
Pricing for Solar Battery Storage & Backup in Lake Dallas, TX
A single battery system in Lake Dallas typically runs $9,500 to $15,500 installed. Add a panel upgrade for an older cabin and you’re looking at another $2,800 to $4,500. Whole-home backup with two batteries and a smart load panel lands between $18,000 and $26,000. These are real numbers based on jobs we’ve done within 75065, not a national average pulled from a database. The federal tax credit covers 30% of battery and installation cost. Call (877) 550-6892 for a free estimate built off your actual bill. Take two weeks. Think about it. The price will be the same.
We Also Serve Cities Near Lake Dallas
Our crews work throughout Denton County, from the lake-lot streets of Lake Dallas to the subdivisions in Corinth, Highland Village, Lewisville, and Flower Mound. If you’re a few minutes down Swisher Road or across the bridge, we’ll be there. Same crew. Same 90-Day Done Right Promise.
Serving Lake Dallas, TX - Our Local Coverage Area
We’re based in the Lake Dallas 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 Lake Dallas
Yes, in many Lake Dallas communities a Powerwall mounted on a lake-facing exterior wall triggers architectural-review requirements, because that surface is treated as a visible rear or side elevation under HOA rules. We prepare elevation drawings and color-matched conduit before submission, which keeps the review moving and prevents a violation notice later. Call (877) 550-6892 and we’ll check your specific HOA’s guidelines.
Usually not without upgrading the main service to 200 amps first. The public utility’s interconnection application rejects most 100-amp panels on homes of that era, so the battery install stalls until the panel is brought up to code. We fold that upgrade into the same job so it happens once, in the right order.
You don’t need a big roof to get whole-home backup. The battery handles the backup, not the panels. A small array that covers daytime loads plus one or two Enphase or FranklinWH batteries can carry the critical circuits overnight. We size the system from your actual bill and panel schedule, not roof square footage alone.
It attacks the connectors and racking faster than it attacks the battery itself. Homes within a few blocks of Lake Lewisville see accelerated corrosion on aluminum racking and MC4 connectors, which degrades inverter communication and can stop a battery from charging during an outage. We use marine-grade hardware on every Lake Dallas install for that exact reason.
Yes, in most cases. A battery retrofit that keeps your existing panel placement unchanged usually avoids a new architectural-review filing entirely. The battery mounts at ground level or interior garage wall, and we run conduit along existing paths. If your current inverter won’t talk to modern batteries, we swap that rather than touching the array itself.
Call Gus’s Solar for Battery Backup in Lake Dallas
You’ll get a real person on the phone, a quote built from your actual utility bill, and a written 90-Day Done Right Promise on every job. No signature demanded tonight. Gus Petrakis has been doing this since 2011, and his name is on the truck. Call (877) 550-6892 for a free estimate.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Lake Dallas and Denton County since 2011.






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