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AfterFast, Reliable Solar Battery Storage & Backup Across Houston
Solar battery storage in Houston runs $11,500-$19,800 for a single Tesla Powerwall 3 or Enphase IQ Battery 5P, installed. Most Houston homeowners get it done in one day, and the battery starts working the moment CenterPoint approves the interconnection. We’re Gus’s Solar. We’ve been doing this in Houston since 2011, and we know exactly what your house needs before we ever show up. Call (877) 550-6892 for a straight answer.
Here’s what matters in Houston that doesn’t matter in Dallas or Austin. Your electricity comes through the ERCOT market, not a traditional utility, and that changes the entire battery decision. Most retail electric providers in Houston buy your exported solar power back at wholesale rates, roughly $0.03-$0.05 per kWh, while you buy power back at $0.12-$0.18 per kWh. That spread is the single biggest driver of battery payback in this city. You save far more by storing your solar and using it after dark than you ever will by selling it back to a deregulated provider.
The other Houston fact: February 2021. Winter Storm Uri. When the grid collapsed, the question every homeowner in this city started asking wasn’t about payback periods. It was “will my heat stay on?” We build every Houston battery system around the answer to that question, not around a brochure.
Why Gus’s Solar Is Houston’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis put his name on the truck in 2011, and that name still answers the phone. Our Solar Battery Storage & Backup team is his own crew, not a rotating cast of subcontractors. When you call the Houston office, a live person picks up. Not a voicemail. Not a ticketing system. A person who knows what a 1920s bungalow in the Heights looks like and whether your 100-amp panel is going to hold up.
Houston customers have left us reviews that mention the same things: the quote matched the final bill, the crew showed up in uniform with their names on their shirts, and Gus came back when a setting needed adjusting. We’ve been a local shop for over 29 years combined with Gus’s prior electrical work, and the 90-Day Done Right Promise is in writing on every job. If it’s not right, one call brings Gus back to your house in Houston.
We answer calls 24/7 because power outages don’t check business hours. If your battery throws an error at 11pm during a July heat wave, you’ll get a human voice, not a message saying call back Monday.
Our Solar Battery Storage & Backup Services in Houston
Tesla Powerwall Installation in Houston
We install Tesla Powerwall 3 units for Houston homes weekly, and it’s the battery we recommend most for whole-home backup. A single Powerwall 3 holds 13.5 kWh and can start a 4-ton air conditioner, though it won’t run that AC all night by itself. For a Houston summer, where you’re cooling into the 10pm hour, most homes need either two Powerwalls or a critical-load panel design that keeps the AC, fridge, and lights on while shedding the pool pump and the dryer. We’ll tell you straight what one unit will and won’t do.
Whole-Home Backup Power in Houston
Whole-home backup in Houston means more than slapping a battery on the wall. It means figuring out what actually needs to run when the grid drops. We design critical-load subpanels that keep your heat pump mini-splits, refrigerator, lights, and internet running during a freeze event like Uri, while leaving the electric oven and dryer off the backup circuit. That’s the difference between a battery that lasts 3 hours and one that lasts through the night. In Houston’s summer, the math is the same: you want the AC on, but you don’t need the garage freezer and the pool pump draining the battery before midnight.
Battery Retrofit for Existing Solar in Houston
If you already have panels on your Houston roof and want storage, the path depends on your existing inverter. Systems with string inverters from 2015-2019 often lack rapid-shutdown compliance, which matters because CenterPoint won’t approve a battery interconnection on a non-compliant array. We handle the microinverter swap as part of the same job. In West University Place, we see a lot of older systems with undersized inverters that cap battery charging rates. The fix is usually the FranklinWH aGate or Enphase System Controller 3, and we keep those parts in our Houston inventory.
Enphase IQ Battery Installation in Houston
For homes already running Enphase microinverters, the IQ Battery 5P is the cleanest path to storage. It’s modular, so you can start with 5 kWh and add another unit later. In Houston’s inner-loop ZIP codes, where roof space on those narrow 3-story townhomes is tight, we often pair one IQ Battery 5P with an Enphase IQ8 microinverter array and skip the main panel upgrade by using a load controller. That keeps cost down on homes where the roofline can’t physically fit more than 8-10 panels anyway.
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 Houston
We work with the brands Houston homeowners actually ask for, including Panasonic, FranklinWH, and Canadian Solar for racking and modules. But we don’t just install them, we stock the firmware and service parts in Houston, so a battery issue doesn’t mean waiting a week for a part to ship from California. Tesla and Enphase remain our two most-installed battery lines in this market, and we service what we sell. No out-of-state call center, no third-party warranty portal. Call (877) 550-6892 and you’ll talk to someone who can actually fix a Houston battery system.
Common Solar Battery Storage & Backup Problems We See in Houston Homes
- Undersized battery banks that die before midnight. A single 13.5 kWh battery looks fine on paper until a Houston August evening pushes 95°F at 9pm and the AC is still cycling. We size for the real summer load, not the winter average.
- Interconnection applications stuck at CenterPoint. That 1920s bungalow in the Heights with the 100-amp panel will sit in queue for months if the service upgrade isn’t done first. We file the upgrade and the battery application together on day one.
- Retrofit surprises on older roofs. A string inverter from 2017 that lacks rapid shutdown will stall a Houston battery retrofit at inspection. We check for this before we quote, not after we’ve already cut a hole in the wall.
- Wholesale buyback killing the payback math. Homeowners who sized their systems for export, assuming true net metering, are exporting at $0.04/kWh and buying back at $0.15. The fix is storage, and the sizing is straightforward once we look at your actual bill.
Pricing for Solar Battery Storage & Backup in Houston, TX
A Tesla Powerwall 3 installed in Houston runs $11,500-$15,800 depending on panel location and whether we need a critical-load subpanel. An Enphase IQ Battery 5P starts around $6,200 installed as an add-on and $13,900 for a two-battery configuration with the System Controller 3. Whole-home backup on a 2,500-square-foot Houston house with two AC units typically lands at $22,000-$29,000 for two Powerwalls plus the subpanel work. If your home needs a 100-amp to 200-amp service upgrade, add $3,200-$5,500. We quote the final number off your actual utility bill and your roof, not a brochure. Free estimates, and we do not ask for a signature the same night. Take two weeks. The price will be the same.
We Also Serve Cities Near Houston
Our crews handle Solar Battery Storage & Backup in Houston and the surrounding communities, including Bellaire, West University Place, Galena Park, and Jacinto City. If you’re inside the Beltway and your neighbors are asking about batteries after the last freeze, we’ve probably already done a house on your street. Scheduling and dispatch come from our Houston office, so a call at 8am gets a crew out the same day in most of the inner loop.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 Houston
Yes, if the system is designed for it. A single Tesla Powerwall 3 will run heat-pump mini-splits and a refrigerator for 10-14 hours in a Houston freeze, assuming the thermostat is set to 62-65°F. A natural-gas furnace blower motor plus lights and fridge will run 18-24 hours on the same battery. The key is the critical-load subpanel: we put the essential circuits on battery, leave the electric oven and clothes dryer off backup, and you stay warm through a multi-day outage if you have solar recharging daily. Call (877) 550-6892 and we’ll show you exactly which circuits your house would back up.
Usually not. CenterPoint Energy requires a 200-amp service for most whole-home battery interconnections in Houston, and most 1920s Heights bungalows still run on 100-amp panels. The upgrade adds $3,200-$5,500 and takes one extra day. Some Enphase configurations with load controllers can work around a panel upgrade on smaller systems, but for a Tesla Powerwall on an older home, plan on the service upgrade. We’ll tell you at the first visit, not after you’ve signed.
It shortens it. In a true net-metering state, you get retail credit for every exported kWh, so a battery is a luxury. In Houston, you export at $0.03-$0.05 and buy back at $0.12-$0.18, so every stored kWh you use after dark is worth three to four times what you’d get selling it to a deregulated provider. That shifts the math toward a smaller battery that covers your evening load, and it’s why we size Houston systems for self-consumption, not export. Bring me a bill, and I’ll show you the exact difference.
Yes. Those post-2000s infill townhomes in the Heights corridor and Midtown, often 16-20 feet wide, can’t fit enough panels to charge two Powerwalls. We typically recommend a single Enphase IQ Battery 5P or a FranklinWH aPower paired with a smaller panel array, plus a load controller instead of a full subpanel. Shared-wall HOA approval also adds 2-4 weeks to the permit timeline in Houston. We handle the HOA packet, the CenterPoint filing, and the install as one process.
A Tesla Powerwall or Enphase IQ Battery degrades to about 70% capacity after 10 years or 4,000 cycles, whichever comes first. Panels degrade roughly 0.5% per year. Houston’s heat matters because ambient temperatures above 95°F reduce a battery’s round-trip efficiency by 3-7% during summer afternoons, meaning you lose a bit more energy charging when it’s hottest. We place batteries in shaded or conditioned spaces whenever possible, and we quote the year-25 output on panels so you’re not surprised at year 10. Call (877) 550-6892 for an exact quote on your house, free.
Houston’s Battery Math: What You Won’t Find on a Nationwide Solar Page
Nationwide pages don’t know about ERCOT, or about Winter Storm Uri, or about what it’s like to run an air conditioner in September in Houston. We do. Houston’s deregulated market means the payback on your battery comes from avoiding buying power at $0.15/kWh, not from selling at $0.04. And the freeze memory from February 2021 changed what Houston homeowners ask for. The first question now is “will it keep my heat on,” and that means critical-load design, panel upgrades on older bungalows, and a rethink of which circuits actually matter. In the Heights, our crew retrofitted a 1920s bungalow with a Tesla Powerwall 3 after the homeowner asked exactly that question. We installed a critical-load subpanel for the new heat-pump mini-splits and the fridge, upgraded the service from 100-amp to 200-amp for CenterPoint’s approval, and left the natural-gas furnace off the backup entirely. One trip, done before the next cold front. That’s what we do in Houston.
Call Houston’s Battery Team
If you’re in Houston and you want to know whether a battery makes sense on your house, call (877) 550-6892. We’ll ask about your bill, your panel, and what actually needs to stay on when the grid drops. We’ll give you a real number, in writing, and we’ll tell you to take two weeks before you sign. If a salesman needs an answer tonight, the answer is no. Gus’s Solar answers the phone, shows up on time, and stays in Houston after the install is done.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Houston since 2011.