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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 Colleyville
Solar battery storage and backup in Colleyville typically costs $14,500-$23,000 for a single Tesla Powerwall or Enphase IQ Battery installed with a Gateway and transfer switch, and $28,000-$46,000 for two-battery whole-home setups. Most Colleyville homes we serve take 2 to 4 days to install once permits clear, with much of that time spent matching battery output to the large HVAC loads common in 4,000-6,000 sq ft custom builds. If your power went out in the middle of a July heat wave and you’re tired of draining the pool pump or resetting the irrigation controller, call Gus Petrakis and his crew at (877) 550-6892. We know Colleyville’s homes, its grid, and its inspectors. We’re not a call center. Gus answers the phone.
Key Takeaways
- Battery-only installs run $14,500-$23,000 in Colleyville; whole-home backup for large custom homes typically lands $28,000-$46,000.
- Colleyville sits on DFW Airport’s east boundary: FAA glare-advisory guidance applies to panel tilt and orientation, even on battery retrofits that add panels.
- HOA rules under Texas Property Code §202.010 can force non-street-facing array placement, cutting winter production enough to leave a battery undercharged.
- Gus Petrakis quotes year-25 output, not day-one brochure numbers. Bring a bill, he’ll bring you the math.
Why Gus’s Solar Is Colleyville’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis founded Gus’s Solar in 2011 and put his name on the building. That matters in Colleyville, where the average custom home represents a serious investment and the owner wants to know who’s walking the roof before the crew arrives. Every job is done by Gus’s own crew: background-checked, uniformed, and accountable to one person. Not a subcontractor three counties over. Not a rotating cast of installers. Gus’s team handles Solar Battery Storage & Backup from the first load calculation to the final Oncor interconnection sign-off.
Colleyville homeowners tend to ask pointed questions. They’ve usually done their homework, and a lot of them have already sat through a high-pressure pitch from a door-knocker promising free panels and overnight savings. We don’t do that. If a salesman needs an answer tonight, the answer is no. Gus tells every customer the same thing: take two weeks, think about it, the price will stay the same. The 90-Day Done Right Promise is on paper for every solar job. If something isn’t right, Gus comes back.
Response time to Colleyville is same-day for service calls within the county, and a live person picks up the phone 24/7. No voicemail tree, no ticketing portal. When a battery inverter throws a fault at midnight, you call, a person answers, and Gus makes the call on who comes out.
Our Solar Battery Storage & Backup Services in Colleyville
Tesla Powerwall Installation in Colleyville
A Tesla Powerwall 3 installed in Colleyville runs $15,500-$19,000 for a single unit with Gateway and backup switch, depending on main panel condition and whether we’re stacking onto an existing solar system or installing fresh. The Powerwall 3’s 11.5 kW continuous output matters a lot in Colleyville, where dual 4-ton and 5-ton AC units are the norm. One Powerwall can start and run a single 4-ton unit with a soft start, but running two simultaneously needs a second battery or careful load management. We don’t guess at this. We pull your actual utility bill and size the battery to your real usage, not a brochure estimate. For the Montclair Park retrofit we did on an 18 kW SunPower system, the math came down to two AC units, a pool pump, and a 200-amp main panel. One Powerwall 3 handled it in self-consumption mode when paired with the existing inverter’s CTs.

Enphase IQ Battery Installation in Colleyville
Enphase IQ Battery 5P installations in Colleyville typically run $13,000-$17,000 for the first unit and $9,000-$11,000 for each additional, including the System Controller. Enphase’s modular design works well on Colleyville’s custom homes where roof space is fragmented by dormers and turrets, because the batteries mount on the wall or in the garage and pair cleanly with existing Enphase microinverters. If your home has an older Enphase system, we can often add IQ batteries without replacing the existing microinverters, which saves real money on a retrofit. The IQ Battery’s 3.84 kW continuous output per unit means most Colleyville homes need two or three units to cover a single AC compressor. We’ll tell you that upfront, not after you’ve signed.

Whole-Home Backup Power in Colleyville
Whole-home backup for a Colleyville custom home, which we define as backing up two HVAC systems plus refrigeration, lighting, and well or irrigation controllers, runs $28,000-$46,000 depending on total load and whether the home has dual 200-amp panels. Colleyville’s housing stock complicates this: many homes built between the mid-1980s and early 2000s have dual 200-amp panels with pool and spa subpanels. If the battery-ready panel derating gets overlooked during design, breakers trip the moment the backup kicks in. We check this during the site visit, not after the outage. Whole-home backup on a 5,000 sq ft house with a tile roof and two five-ton ACs is a different job than a 1,800 sq ft Bedford ranch. We treat them differently.

Battery Retrofit for Existing Solar in Colleyville
Adding battery storage to an existing solar system in Colleyville costs $14,000-$21,000 for a single-battery retrofit, depending on inverter compatibility and whether your existing system predates the 2017 rapid shutdown code. Many Colleyville systems were installed between 2015 and 2019 on SunPower or older SolarEdge hardware. Some inverters can pair directly with AC-coupled batteries; others need a new hybrid inverter. We handle the whole thing: panel derating if needed, Oncor interconnection updates, and reprogramming the system so the battery actually charges and discharges the way your bill dictates. The Montclair Park job is a good example. Existing SunPower system, new Powerwall 3, Oncor upgrade, and self-consumption mode set so the homeowner stopped selling back at avoided-cost rates during peak afternoon production.

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 Colleyville
We install and service Tesla, Enphase, SolarEdge, SunPower, FranklinWH, and Panasonic battery systems across Colleyville. We also keep common Enphase and Tesla components on hand so a warranty claim or inverter fault doesn’t leave you waiting on a freight shipment from California. Every install works with the equipment you choose, but when a Colleyville homeowner asks what we’d put on our own house, we lean Tesla Powerwall for whole-home load support and Enphase IQ for modular retrofits on existing microinverter arrays. We don’t push Qcells, REC, or SunPower panels for the sake of a brand deal. We quote the right equipment for your roof and your utility bill, and we quote the year-25 output, not the day-one brochure number.
Common Solar Battery Storage & Backup Problems We See in Colleyville Homes
- Battery-ready panel derating gets skipped on custom homes with dual 200-amp panels and pool/spa subpanels. When the grid drops, the backup circuit overloads and the breaker trips, taking the garage door opener and the irrigation controller offline with it. We see this on about a third of Colleyville battery retrofits we’re called to fix.
- Installers miss the FAA glare-advisory angle entirely. Colleyville sits directly along DFW International Airport’s eastern boundary. A poorly tilted array reflects into departure corridors, triggering a city permit hold that stalls battery commissioning for weeks. We file the glare-advisory paperwork as part of the design, not as an afterthought.
- HOA-mandated non-street-facing array placement cuts winter production by 15-20%. Under Texas Property Code §202.010, Colleyville HOAs can’t ban panels, but they can require them on non-street-facing slopes. On a north-facing or east-west ridge home, that means the battery never reaches full charge from November through February. We flag this before you sign so your production estimate isn’t inflated.
- Older solar systems predating the 2017 rapid shutdown code need inverter upgrades before a battery can be added. The existing inverter may not support AC-coupling, and Oncor won’t approve the interconnection until the entire system meets current code. We price this openly during the estimate, not as a surprise change order.
Pricing for Solar Battery Storage & Backup in Colleyville, TX
Here’s what Colleyville homeowners actually pay, based on the jobs we’ve quoted and installed in 76034 over the past two years. A single-battery retrofit with no panel major work lands between $14,000 and $19,000. Whole-home backup for a custom home with two HVAC systems starts around $28,000 and tops out near $46,000 when dual 200-amp panels and a generator-ready transfer switch are involved. What moves the price in Colleyville specifically: tile roof penetrations and tile hooks, which add 10-15% in labor versus composition shingle; HOA compliance documentation; FAA glare-advisory filings when panels are part of the job; and Oncor interconnection fees for battery export. The price we quote is the price you pay. No signature wanted tonight. Call (877) 550-6892 for a free estimate, and bring your utility bill. Gus will show you the math off your actual usage, not a brochure.
Gus’s Solar offers a free second opinion on any written estimate, a senior and veteran 10% discount that never expires, and no trip charge inside our own county. These are standing offers, not seasonal promos.
We Also Serve Cities Near Colleyville
While this page focuses on Colleyville, Gus’s crew regularly works in Bedford, Hurst, Southlake, and Euless. If you’re in one of those cities and need battery storage or backup, the same crew, the same pricing, and the same 90-Day Done Right Promise apply. Call (877) 550-6892 and we’ll get you on the schedule.
Serving Colleyville, TX - Our Local Coverage Area
We’re based in the Colleyville 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 Colleyville
No. The FAA glare-advisory consideration applies to solar panel orientation and tilt, not to battery units mounted on a wall or in a garage. If you’re adding a battery to an existing system and the panels aren’t being repositioned or expanded, the glare-advisory angle doesn’t change your permit path. If the retrofit adds panels, it applies. Call (877) 550-6892 and we’ll tell you which category your job falls into before we quote.
A single Tesla Powerwall 3 can start and run one 4-ton AC unit with a soft start installed, but it will not run two large units simultaneously. Most Colleyville custom homes with dual 4-ton or 5-ton ACs need two Powerwalls or a single battery with aggressive load shedding. We size the battery to your actual compressor LRA and your bill, and we’ll show you the load calculations.
Under Texas Property Code §202.010, HOAs cannot ban solar panels, and most battery enclosures are treated as part of the solar system. However, some Colleyville HOAs require batteries to be installed inside the garage or behind a screen wall if visible from the street. Gus’s crew has worked with most of the major Colleyville associations and knows which ones require what. We handle the HOA paperwork as part of the job.
Yes, and that’s the point of having a battery. If Oncor shifts export rates toward avoided-cost pricing, a battery in self-consumption mode saves you money by storing afternoon production and powering your house through the evening peak instead of selling back cheap. Your payback period may actually shorten as export rates decline. We model this in the quote off your actual bill so you see the year-25 number, not a day-one sales pitch.
If the existing inverter doesn’t support AC-coupling or doesn’t meet current rapid shutdown requirements, Oncor will not approve the battery interconnection until the system is brought up to code. That usually means an inverter replacement or a hybrid inverter that handles both the existing array and the new battery. We’ll tell you during the estimate whether your system is grandfathered or needs the upgrade. No surprises after the contract.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Colleyville since 2011.






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