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.
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AfterFast, Reliable Solar Battery Storage & Backup Across Flower Mound
Solar battery storage in Flower Mound costs between $11,500 and $18,000 for a single Tesla Powerwall 3 or Enphase IQ Battery 5P fully installed, and $22,000 to $34,000 for a two-battery whole-home setup sized for a 3,500 sq ft brick-front home. Most Flower Mound installs we complete are retrofits onto existing rooftop arrays, and we can usually be on site within 48 hours of your call. If your power is out right now, call (877) 550-6892 and a live person picks up, day or night. That’s not a promise we make lightly. Gus Petrakis has been answering his own phone since 2011, and he still does.
Key Takeaways:
- Tree-canopy shade from Flower Mound’s protected oaks means battery sizing has to be done on site, not from satellite imagery.
- A single Powerwall 3 covers essential circuits in most Flower Mound homes; whole-home backup on a 4,000+ sq ft house usually needs two.
- We’re a local, owner-operated shop with a published address and license number. Gus’s name is on the building and the work.
- Free estimates, no trip charge in our own county, and a 90-Day Done Right Promise in writing on every job.
Why Gus’s Solar Is Flower Mound’s Preferred Solar Battery Storage & Backup Company
Flower Mound homeowners tend to do their homework. You’ve probably already looked at a half-dozen battery brands, read the spec sheets, and maybe talked to a door-knocker or two. What you haven’t found is a local shop that will tell you the truth about how your roof and your trees change the battery math. That’s what we do. Gus’s Solar has been installing and servicing battery systems in Flower Mound’s 75022, 75027, and 75028 zip codes long enough to know that a quote built from satellite imagery alone will miss the afternoon shade from a 25-year-old post oak. We bring a SunEye and take physical shade readings before we quote a single dollar. That’s the difference between a battery that dies at 8 p.m. and one that carries your A/C through the night.
Our crews are background-checked, uniformed, and they’re Gus’s own people. Not subcontractors. When you call with a question after the install, you get the same team that climbed your roof. Flower Mound customers also get the 90-Day Done Right Promise in writing: if something isn’t right, one call brings Gus back. No ticket queues, no call centers, no “your case has been escalated.” Just a live person who knows your name and your system.
Our Solar Battery Storage & Backup Services in Flower Mound
Tesla Powerwall Installation
The Tesla Powerwall 3 is the most common battery we install in Flower Mound, and for good reason. It puts out 11.5 kW continuous, which is enough to run a 4-ton A/C unit, most lights, and the refrigerator at the same time. In Flower Mound homes with complex multi-plane roofs and partial afternoon shade, we often pair a Powerwall 3 with a second unit when the homeowner wants whole-home coverage. A single Powerwall runs $11,500 to $14,000 installed; two units typically land in the $22,000 to $26,000 range depending on your panel and wiring. Call (877) 550-6892 and bring us your electric bill. We’ll quote the year-25 output, not the day-one brochure number.
Enphase IQ Battery Installation
Enphase IQ Battery 5P units are modular, so they scale cleanly from a single 5 kWh unit up to a 30 kWh stack. That flexibility matters in Flower Mound because homes with dormer-fragmented arrays on the north side of Cross Timbers Road often have microinverters already in place. Adding Enphase batteries to an existing Enphase array is simpler than mixing brands, and the system talks to itself natively. Expect $9,000 to $12,000 for a single 5P installed, and roughly $6,000 to $7,000 per additional unit. Where the math gets tricky is when the home’s main panel is a builder-grade 200A unit that can’t accept a whole-home backup feed. We check that before quoting, not after you sign.
Whole-Home Backup Power
Whole-home backup in Flower Mound means sizing for summer evenings when the A/C is running full tilt and the oaks have blocked the late sun. For most 3,500 to 5,500 sq ft homes in The Preserve or Wellington, we recommend two Powerwall 3s or a 20 kWh Enphase stack with a smart load management device. Installed cost for a two-battery whole-home system runs $22,000 to $34,000, including the necessary panel work. We’ve done enough Flower Mound installs to know that a system sized for “average” production will leave you dark during a July hail-induced outage. We size for the worst week of the year, not the best month.
Battery Retrofit for Existing Solar
If you already have rooftop solar and want to add storage, we’ll check three things before we talk pricing: your inverter type, your main panel capacity, and your actual production curve with shade included. In Flower Mound, we see 200A panels in master-planned neighborhoods like The Preserve that were never designed for a battery feed. Sometimes the fix is a sub-panel and a load-shedding relay; sometimes you’re looking at a main panel replacement. Either way, you’ll know before you commit. Retrofits typically run $8,500 to $14,000 for a single battery add-on, plus any panel work. No surprises. No signature wanted tonight.
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 Flower Mound
We work with FranklinWH, Tesla, and Enphase battery systems, and we service what we sell. That’s not true of every installer in Flower Mound. Some will install a battery, hand you a manual, and hope you never call back. We stock common parts locally and keep spare Tesla and Enphase components in our DFW shop so we don’t have to wait on a distributor when your system throws a fault. If your FranklinWH aGate or Powerwall needs attention, we’re the crew that shows up. Same team that installed it.
Common Solar Battery Storage & Backup Problems We See in Flower Mound Homes
- Undersized 200A main panels. Builders in The Preserve and similar master-planned neighborhoods cut corners on the main panel. A whole-home battery feed often requires a panel upgrade, and we see this weekly. We check panel capacity on the first site visit and factor it into the quote.
- Tree-shaded production gaps. Flower Mound’s protected post oaks and bur oaks shade roofs well into the afternoon. A battery sized from satellite imagery will underperform because the software doesn’t see canopy closure over the last 5-10 years. We use a SunEye and take physical readings before quoting.
- Split-array battery charging sag. Dormers and complex multi-plane rooflines force microinverters to work at suboptimal azimuths. In winter, battery charge rates can fall below spec because the array is fragmented across three planes. We account for this in our sizing.
- Hail-damaged panels feeding the battery. Flower Mound sits in the North Texas hail corridor, and 1-2 inch stones are common. Impact-rated panels (Class 4 / IEC 61215) matter here, but so does post-hail inspection. A cracked panel steadily degrades battery charging, and you might not notice until the first outage.
Pricing for Solar Battery Storage & Backup in Flower Mound, TX
Here’s what we actually charge in Flower Mound. A single Tesla Powerwall 3 install runs $11,500 to $14,000. A single Enphase IQ Battery 5P runs $9,000 to $12,000. Whole-home backup with two batteries runs $22,000 to $34,000. If you’re adding storage to an existing system, budget $8,500 to $14,000 for the battery plus any panel work. What changes the price? Your main panel, your inverter type, the distance from the battery to your service entrance, and whether we need to split the backup loads. We quote off your actual electric bill and our physical shade readings. That means the number we hand you is the number you pay. Bring us a bill, we’ll bring you the math. Estimates are free, and there’s no trip charge inside our own county.
We also run a Senior and Veteran discount of 10% that never expires, and $40 off any repair over $200. If you’ve already got a written estimate from another company, bring it in for a free second opinion. Take two weeks. Think about it. The price will be the same.
We Also Serve Cities Near Flower Mound
If you’re in Highland Village, Lantana, Corinth, or Lake Dallas, you’re inside our regular service area. We coordinate scheduling from our Dallas-Fort Worth office and our crews serve Flower Mound locally. So whether you need Solar Battery Storage & Backup across north Denton County or you’re researching Flower Mound battery installs specifically, the same team does the work. Call (877) 550-6892 and ask for Gus.
Serving Flower Mound, TX - Our Local Coverage Area
We’re based in the Flower Mound 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 Flower Mound
Flower Mound’s Urban Forest Management Plan and tree preservation ordinances protect mature post oaks, Eastern red cedars, and bur oaks, which means you can’t simply trim or remove canopy trees to improve solar exposure. Our battery sizing accounts for the shade those trees cast from early afternoon onward. A battery sized for Grapevine’s open rooftops won’t keep your Flower Mound home running past 8 p.m. in July. We run physical shade readings with a SunEye before we quote because satellite imagery consistently undercounts canopy closure in neighborhoods like Wellington and Chinn Chapel. Call (877) 550-6892 for a shade-adjusted quote.
A single Powerwall 3 puts out 11.5 kW continuous, which covers essential circuits in a 4,000 sq ft home but won’t run every A/C zone, the pool pump, and the dryer at once. For whole-home backup in Flower Mound’s summer heat, we recommend two Powerwall 3s or a 20 kWh Enphase stack with load management. The hail storm is usually the reason the outage is happening in the first place, so the battery has to handle the A/C load through the night. We size for that exact scenario, not for a mild March evening.
It depends on your panel. Many Wellington homes have builder-grade 200A main panels that can’t accept a whole-home backup feed without derating or replacement. In some cases, we can install a sub-panel with load-shedding relays and avoid the full panel swap. In others, the panel has to be replaced, which adds $3,500 to $6,000. We’ll tell you which situation you’re in during the first site visit. No surprises after you sign.
Yes. Oncor’s net metering rates and time-of-use structures apply across Flower Mound’s service area, but Lewisville’s tree canopy is thinner, so solar production curves look different. A battery in Flower Mound spends more of its charge window compensating for late-afternoon shade, which shifts the payback math. We run your actual bill through the time-of-use schedule and show you the year-25 numbers before you spend anything. Free estimate. No pressure.
Because satellite roof tools undercount shading in Chinn Chapel. The subdivision’s 25-year-old canopy oaks have closed over lots that looked open in the last imagery pass. A quote built from software alone will overestimate production, undersize the battery, and leave you dark on the hottest night of the year. We schedule a physical site visit before we quote. It costs you nothing.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Flower Mound with straight answers and honest battery sizing since 2011.