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AfterFast, Reliable Solar Battery Storage & Backup Across Windcrest
Solar battery storage in Windcrest typically runs $11,500-$18,500 for a Tesla Powerwall or Enphase IQ Battery system with full installation, and most jobs take one to two days once the permit clears. Gus’s Solar has been putting batteries on Windcrest homes long enough to know the two things that trip up every out-of-town installer: the permit comes from Windcrest City Hall, not San Antonio, and the original 100-amp panels on those 1950s ranch homes almost always need an upgrade first. We price both line items upfront so you won’t get a surprise change order mid-job. Call (877) 550-6892 and we’ll walk your actual CPS Energy bill line by line.
Here’s what matters for Windcrest: you’re in a city that runs its own building department inside a county served by CPS Energy. That means two agencies, two application processes, and a scheduling dance that national installers routinely botch. We don’t. Gus Petrakis has been doing this since 2011 and his crew knows the Windcrest permit office by name.
Why Gus’s Solar Is Windcrest’s Preferred Solar Battery Storage & Backup Company
We’re the local alternative to the door-knockers. No crew in a rental van from three states away. No subcontractor who’s never pulled a Windcrest permit. Gus’s own uniformed, background-checked technicians do the work, and Gus publishes his name, address, and license number on every quote. If something’s not right, one call brings him back. That’s the 90-Day Done Right Promise, in writing, on every battery job.
Windcrest homeowners have dealt with us for years, and the pattern we hear most is relief: someone actually answered the phone, actually showed up, actually knew that a battery interconnect here goes through CPS while the permit goes through City Hall. A live person answers our phone 24/7. Not a voicemail. Not a ticketing portal. Call (877) 550-6892 at 9 PM and you’ll get a human who knows what a true-up statement is.
We show up in Windcrest fast. Most service calls in the 78239 zip get a same-day or next-day visit, and we never charge a trip fee inside our home county. If you’ve got a written estimate from another company, bring it to us. We’ll give you a free second opinion, no pressure, no signature requested tonight. Take two weeks. Think about it. The price will be the same.
Our Solar Battery Storage & Backup Services in Windcrest
This is what we actually do for Windcrest homes. Not a brochure list. Not a sales deck. The work we do week in and week out.
Tesla Powerwall Installation
A Tesla Powerwall 3 install in Windcrest runs $12,000-$16,500 depending on whether you need one unit or a stacked pair, and whether your main service panel needs replacing. Most of the 1950s-through-1970s ranch homes we see in the 78239 still have the original 100-amp panel, which cannot legally accept a Powerwall’s backfeed. We quote the panel upgrade as a separate line item so you see the real number before we start. Not after we’ve already cut drywall.
Enphase IQ Battery Installation
Enphase’s IQ Battery 5P units land a bit differently: expect $10,500-$14,000 for a two-battery configuration that pairs well with existing Enphase microinverter systems. If you already have an Enphase solar array on your Windcrest roof, this is often the cleanest retrofit because the ecosystem is already talking to itself. We’ll verify your existing combiner box and IQ Gateway are compatible before we quote anything.
Whole-Home Backup Power
Windcrest sits inside Bexar County, where summer heat pushes grid load hard and rolling outages are not hypothetical. A whole-home backup setup means your air conditioner, refrigerator, and medical equipment stay running when the grid blinks out. For a typical 1,800-2,400 square foot Windcrest ranch with central air, we size two Powerwall 3s or three Enphase 5Ps to cover the real load. The sizing comes from your actual CPS usage data, not a guess.
Battery Retrofit for Existing Solar
This is the one we wish more Windcrest homeowners asked about earlier. If you put solar on the roof years ago, your inverter may be aging out while your panels still have plenty of life. Adding a battery to an existing array in Windcrest runs $9,500-$14,000, and it requires checking three things: your panel capacity, your inverter’s battery compatibility, and whether your roof’s composition shingles can handle another penetration for the battery conduit. We do all three checks before we quote, not after.
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 Windcrest
We work with FranklinWH, Panasonic, and Canadian Solar equipment alongside Tesla and Enphase, and we stock local inventory for Windcrest customers so you’re not waiting on a freight shipment from Dallas. FranklinWH’s aPower battery is a serious contender for whole-home backup, especially where homeowners want the battery and the inverter in one cabinet with a simpler install. Panasonic’s EverVolt line holds up well in Bexar County heat. We’ll recommend what fits your actual load profile, not whatever has the highest margin this quarter.
Common Solar Battery Storage & Backup Problems We See in Windcrest Homes
- Permit pulled through the wrong agency. Contractors file the building permit with San Antonio’s Development Services Department because Windcrest is encircled by San Antonio and they assume. The job stalls for weeks while the homeowner wonders why nothing’s happening. Windcrest’s permit lives at Windcrest City Hall, and we know exactly which form goes where.
- Battery quoted without a panel audit. An installer quotes a Powerwall, the crew arrives, and suddenly the 100-amp panel from 1962 can’t handle the backfeed. The homeowner gets a $3,000-$4,500 change order with no warning. We inspect the panel before we quote, and the upgrade cost is in the price from day one.
- Battery sized for July, not December. Windcrest is ‘The City of Lights.’ Holiday lighting loads in November and December can rival summer AC demand on some homes. A battery sized only for cooling loads leaves you with a January true-up bill that makes you hate your system. We model December loads into the sizing from the start.
- Roof condition ignored. Mid-century Windcrest homes still carrying original composition shingles are common. A battery install means conduit penetrations and additional racking on the roof. We do a roof assessment before committing to placement. If your roof has five years left, we’ll tell you that before we drill.
Pricing for Solar Battery Storage & Backup in Windcrest, TX
Here are the numbers for Windcrest, straight up:
| Service | Typical Range in Windcrest |
|---|---|
| Single Tesla Powerwall 3 with full install | $12,000 - $14,500 |
| Two Tesla Powerwall 3s with full install | $21,000 - $24,500 |
| Enphase IQ Battery (two 5P units) | $10,500 - $13,000 |
| Battery retrofit to existing solar | $9,500 - $14,000 |
| 100-amp to 200-amp panel upgrade (when needed) | $3,000 - $4,500 |
What moves the number: your panel’s age and capacity, the battery brand and count, your existing inverter, and whether we’re adding sub-panel circuits for critical loads. Gus quotes the year-25 output, not the day-one brochure number. Bring him a CPS bill and he’ll bring you the math, with every line item in writing. Call (877) 550-6892 for a free estimate. No trip charge inside our county. Senior and veteran discount of 10% never expires.
We Also Serve Cities Near Windcrest
Our Windcrest service area covers the wider Bexar County ring. We do solar battery work in Converse, Live Oak, Kirby, and Universal City, and we handle the Solar Battery Storage & Backup needs of homeowners across the San Antonio area. If you’re a mile outside the Windcrest line, call anyway. We’ll come out.
Serving Windcrest, TX - Our Local Coverage Area
We’re based in the Windcrest 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 Windcrest
You need two approvals from two separate agencies: Windcrest City Hall issues the building permit for the physical battery installation, and CPS Energy processes the interconnection application that lets your battery feed the grid. Windcrest is an independent municipality fully encircled by San Antonio, so its building permits run through its own City Hall, not San Antonio’s Development Services Department. Contractors who don’t know this file with the wrong agency and stall the job for weeks. We coordinate both filings in parallel so your permit and interconnection clear around the same time. Call (877) 550-6892 and we’ll explain the exact paperwork for your address.
In most Windcrest homes built from the 1950s through the 1970s, no. A 100-amp panel lacks the busbar capacity to accept a Powerwall’s backfeed under National Electrical Code load calculations, so a panel upgrade to 200 amps is typically required. That’s a $3,000-$4,500 line item we include in the quote before you sign anything, not a surprise after the crew opens your wall. A few Windcrest homes have already been upgraded, and if yours has, the job gets cheaper. We check the panel before we quote. Call (877) 550-6892 to schedule a panel inspection with your free estimate.
Yes, and this is a uniquely Windcrest question because ‘The City of Lights’ runs lighting loads in November and December that rival summer AC demand. A battery with time-of-use programming stores excess solar during the day and discharges it during the evening lighting peak, cutting the grid power you pull when those circuits are lit. We size the battery’s daily throughput against your holiday load, not just your cooling load. On one 78239 ranch, our production estimate showed a 40% reduction in the homeowner’s November true-up statement after setting the battery to discharge during the evening lighting window. Call (877) 550-6892 and bring us your December CPS bill. We’ll build the math from it.
It does. Battery installs require conduit penetrations and additional racking on the roof, and Windcrest’s mid-century homes often still carry original composition shingles that have been baking in 100°F Bexar County summers since the 1960s. If your roof is near the end of its life, we recommend replacing or reinforcing before we drill, because a battery mounted on a failing roof just means two projects instead of one. We assess roof condition in every Windcrest estimate and tell you straight if your roof has five years left. Call (877) 550-6892 for a free site assessment.
Solar panels lose roughly 0.5% to 0.9% of their output per year, and in Windcrest’s 220-plus sunny days that degradation compounds into fewer kilowatt-hours available to charge your battery over a 25-year horizon. If your panels are already 10 years old, the battery’s payback math shifts because you’re storing less energy than the system produced in year one. Gus quotes the year-25 output, not the day-one brochure number, so the payback calculation reflects what your array will actually produce, not what the sales sheet promises. Bring us your CPS bill and your array’s install date. We’ll run the long-horizon numbers for free. Call (877) 550-6892.
Get a Straight Answer on Solar Battery Storage in Windcrest
If a salesman needs an answer tonight, the answer is no. That’s our rule and we think it should be yours too. Call (877) 550-6892, bring Gus your CPS Energy bill, and he’ll quote the real cost of battery storage for your Windcrest home, including the panel upgrade if you need one and the permit coordination through Windcrest City Hall. Take two weeks. Think about it. The price will be the same. And when the job’s done, a live person still answers the phone, because Gus’s name is on the work.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Windcrest since 2011.