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AfterFast, Reliable Solar Battery Storage & Backup Across McKinney
Solar battery storage in McKinney runs between $9,500 and $18,500 installed for most homes, before any federal tax credit. The two most common systems we install here are the Tesla Powerwall 3 and Enphase IQ Battery 5P, and we can typically have a crew out to 75069, 75070, or 75071 within 48 hours for a site assessment. If you’re tired of watching your AC pull grid power at 4 p.m. while your panels sit idle, call Gus’s Solar at (877) 550-6892. We’ll bring real numbers off your actual bill, not a brochure.
Why Gus’s Solar Is McKinney’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis has been running this shop since 2011, and his name goes on every truck that rolls into McKinney. We’re not a door-knocking crew that parachutes in for a season and disappears. We answer the phone when you call, and if something’s not right 90 days after install, our Solar Battery Storage & Backup team comes back. That’s the 90-Day Done Right Promise, and it’s in writing.
McKinney homeowners call us because the local solar landscape here is genuinely different. Stonebridge Ranch, Craig Ranch, Painted Tree – these are HOA-governed communities with real teeth. We’ve sat through enough Architectural Review Board submissions to know exactly what those committees reject and what they rubber-stamp. That local knowledge is the difference between a smooth install and a mid-project redesign that costs you another $2,000. If a salesman needs an answer tonight, the answer is no. If you want someone who knows McKinney’s rules and show up when they say they will, that’s us.
Our Solar Battery Storage & Backup Services in McKinney
Tesla Powerwall Installation
A Tesla Powerwall 3 install in McKinney typically lands between $12,000 and $16,500 for a single unit, including gateway hardware and labor. The Powerwall 3 integrates the inverter directly into the battery, which cuts install complexity and is well-suited to McKinney’s large 3,000-plus-square-foot brick-and-stone homes where you’re running two AC units simultaneously in July. We mount most units on garage walls in McKinney, which keeps them out of the 100°F attic heat and out of HOA sightlines.
Enphase IQ Battery Installation
Enphase IQ Battery 5P systems in McKinney generally run $9,500 to $14,000 for a single 5 kWh unit, and more homes here are pairing two or three for whole-home coverage. The modular design works well for McKinney’s east-west split arrays, which we see constantly in Stonebridge Ranch where HOA rules push panels off the street-facing roof plane. If your existing system has Enphase microinverters, adding an IQ Battery keeps everything under one monitoring app.
Whole-Home Backup Power
Whole-home backup in McKinney means sizing for summer realities: a 4-ton AC unit pulls roughly 4,000 to 5,000 watts on startup, and you’ll want a battery system that can carry that plus your refrigerator, lights, and well pump if you’re on the rural fringes toward Princeton. Expect $16,000 to $28,000 for a properly sized multi-battery setup that actually covers your air conditioning, not just a few circuits. We build these systems off your 12-month usage history, not a generic formula.
Battery Retrofit for Existing Solar
Retrofitting a battery to an existing McKinney solar system usually costs $11,000 to $15,000 depending on whether your inverter needs replacing. Homes in the older 75069 core near downtown frequently have string inverters from the 2010s that won’t pair cleanly with modern batteries, so we factor that replacement into the quote up front. If you bought your house with panels already on the roof, we’ll tell you honestly whether the payoff pencils out before you spend a dime.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
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 McKinney
We install and service FranklinWH, Tesla, and Enphase battery systems across McKinney, and we keep common replacement parts and breakers for these brands stocked so a trip to McKinney doesn’t turn into a two-week parts wait. If you’ve got a SolarEdge inverter feeding an older battery, we service those too, though we’ll be straight with you about when repair money is better spent on new equipment. Bring me a bill, I’ll bring you the math.
Common Solar Battery Storage & Backup Problems We See in McKinney Homes
- Thermal derating in unconditioned garages. McKinney summers regularly push past 100°F, and a battery sitting in a garage that hits 110°F will throttle its output. You lose usable kilowatt-hours exactly when your AC needs them most. We recommend garage ventilation or a shaded exterior wall placement where HOAs allow it.
- HOA-forced east-west arrays undersizing the battery. In Stonebridge Ranch and Craig Ranch, street-visibility rules often eliminate the true south roof plane. The original installer sizes the battery off a production estimate that assumed south-facing output, and the system never delivers. We re-run production modeling with the actual azimuth before quoting a retrofit.
- Post-hail roof replacement disrupting battery wiring. After a Collin County hailstorm, roofers pull panels and racking, then reinstall without re-commissioning the rapid shutdown or checking microinverter communication. The battery looks fine on the wall but refuses to discharge during the next outage. We see this at least a dozen times a year in McKinney’s hip-and-valley rooflines.
- Main panel limitations in pre-1970s homes. The historic core near downtown McKinney in 75069 has beautiful old homes with 100-amp or 125-amp main panels. These won’t pass interconnection for a battery without an upgrade, which adds $3,000 to $5,000 to the project. We flag this on the first site visit, not after the paperwork is signed.
Pricing for Solar Battery Storage & Backup in McKinney, TX
Here’s what you can expect to pay in McKinney for battery work, based on jobs we’ve completed in 75070 and 75071 over the last two years:
| Service | Typical Range in McKinney |
|---|---|
| Tesla Powerwall 3 (single unit, garage-mounted) | $12,000 - $16,500 |
| Enphase IQ Battery 5P (single unit) | $9,500 - $14,000 |
| Whole-home backup (2-3 batteries, AC coverage) | $16,000 - $28,000 |
| Battery retrofit for existing solar | $11,000 - $15,000 |
| Main panel upgrade (required in many 75069 homes) | $3,000 - $5,000 |
What moves the number: your HOA’s street-visibility rules and which roof plane your array sits on, the age of your main panel, whether your inverter is compatible with a DC-coupled battery, and the size of your summer AC load. We quote the year-25 output, not the day-one brochure number. Estimates are free, and if you bring in a written competitor quote, we’ll give you a free second opinion too.
We Also Serve Cities Near McKinney
In addition to our Solar Battery Storage & Backup in McKinney work, we regularly send crews to Fairview, Melissa, Allen, and Princeton. Same team, same 90-Day Done Right Promise, same owner’s name on the work. We also keep a Dallas-Fort Worth scheduling office that coordinates all McKinney-area dispatch, so you’re never waiting on a crew that’s three counties away when a battery fault trips at 9 p.m.
Serving McKinney, TX - Our Local Coverage Area
We’re based in the McKinney 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 McKinney
No. Texas Property Code §202.010 protects your right to install solar energy devices, and a battery mounted inside your garage is not visible from the street, so your HOA has no enforcement lever on it. Where your HOA absolutely can push back is on panel placement and any outdoor battery enclosure or conduit run that’s visible from the front curb. We design around ARB rules from day one so your submittal sails through. Call (877) 550-6892 and we’ll walk you through what your specific HOA’s rules mean for your project.
Most of the time, yes. After a roof replacement, the microinverters and rapid shutdown devices on your roof need re-commissioning and re-pairing with the gateway, or your battery will sit charged but never discharge when the grid goes down. We re-commission Enphase systems in McKinney for $280 to $450 depending on array size. Don’t find out the hard way during the next outage. Call us for a free assessment.
Yes, if it’s sized properly. A 4-ton AC unit in a McKinney home pulls roughly 4,000 to 5,000 watts on startup, and a single 13.5 kWh Powerwall can carry that for 2 to 3 hours plus your refrigerators and lights. To cover a full afternoon and evening outage in August, you’ll realistically need two to three batteries. We size the system off your actual July and August usage from your utility bill, so you’re not guessing in the dark.
This is the single most common constraint we solve in McKinney’s 75070 cul-de-sac lots. If your HOA prohibits street-visible panels, we shift the array to east-west planes or a rear ground mount, then size the battery larger to compensate for the lost southern production. Yes, net metering still works – Texas has no statewide net metering mandate, but your retail electric provider’s buyback plan applies regardless of array azimuth. We’ll model the real production numbers off that east-west layout before you sign anything.
McKinney sits in the Oncor delivery area with dozens of retail electric providers offering different buyback structures. If your plan pays wholesale for your excess solar ($0.03 to $0.05 per kWh), you want your battery set to self-consumption mode so you use your own power instead of selling it cheap. If you’re on a time-of-use plan with high evening rates, you want the battery to charge from solar midday and discharge during peak hours. We configure the battery for your specific plan and re-check it when your contract renews. Call (877) 550-6892 for an exact quote on what your bill would look like with battery storage.
Get an Honest Battery Storage Assessment in McKinney
Here’s the deal: take two weeks. Think about it. The price will be the same. When you’re ready to know exactly what battery storage would cost for your McKinney home and whether it pays off, call Gus’s Solar at (877) 550-6892. We’ll bring the year-25 math off your actual bill, no signature wanted tonight. Gus Petrakis founded this company in 2011 on one principle: quote honestly, install cleanly, and be the one who picks up the phone when it rings. L.O.C.A.L. values – Local roots, On time, Community first, Accountable, Loyal. That’s how we’ve run every McKinney job since day one.
Written by Gus Petrakis, Owner at Gus’s Solar, serving McKinney, Fairview, Melissa, Allen, and Princeton.