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.
Fast, Reliable Solar Battery Storage & Backup Across Ennis
Solar battery storage in Ennis means one thing above all: keeping the lights on when a spring storm rolls through Ellis County and Oncor can’t get a crew to your street for hours. A properly sized battery paired with your solar array runs your refrigerator, well pump, HVAC, and medical equipment while the neighborhood sits dark. Gus’s Solar installs, retrofits, and services battery systems across Ennis, including the 75119 and 75120 zip codes. Call (877) 550-6892 for a straight answer on what a battery will actually cost you based on your real usage, not a brochure number.
Why Gus’s Solar Is Ennis’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis founded this company in 2011 and never handed the work to a sales team or a sub crew. The same person whose name is on the building answers the phone and stands behind every Solar Battery Storage & Backup job we do in Ennis. When you call, a live person picks up. Not a ticketing system. Not a call center in another state.
Ennis homeowners who’ve been burned by out-of-state solar outfits before know the pattern: a door knocker quotes one price, the contract says another, and the crew that shows up is from three counties away. That’s not how we work. Gus’s crew are background-checked and uniformed, and they flash every roof penetration properly. The 90-Day Done Right Promise is in writing on every job. If something isn’t right, one call brings Gus back. He lives in this metro. He works here. He’s not going anywhere.
Our Solar Battery Storage & Backup Services in Ennis
Tesla Powerwall Installation
We install Tesla Powerwall 2 and Powerwall 3 for Ennis homeowners who want whole-home backup without a generator’s noise, fuel, or maintenance. The Powerwall 3’s integrated inverter simplifies the system and pairs cleanly with existing or new solar. On a 1970s ranch off West Ennis Avenue, we installed a Powerwall 3 next to an original 100-amp panel after upgrading the service and adding a backup gateway. That homeowner’s main worry was spring hail season knocking out power, so we configured the battery to island the whole home during outages, wired rapid shutdown at the array, and left a year-one production estimate showing over 90% kWh offset.

Enphase IQ Battery Installation
The Enphase IQ Battery line works especially well on Ennis homes with existing Enphase microinverter arrays because everything talks on the same platform. We install the IQ Battery 5P and larger configurations, set up Storm Guard to pre-charge the battery when severe weather is forecast, and configure the system so you can island specific circuits or the whole home. For Ennis homeowners on the flat blackland prairie with wide-open exposure, Enphase’s per-panel monitoring pairs naturally with battery storage to show you exactly what’s being produced, stored, and drawn down in real time.

Whole-Home Backup Power
Whole-home backup in Ennis means your AC still runs in August and your heat still runs in February, not just your refrigerator and a few lights. We size the battery bank and inverter capacity against your actual Ennis utility bill, not a generic square-footage table. Spring storm season in Ellis County reliably produces outages from straight-line winds and lightning strikes on feeder lines, and a properly configured whole-home system keeps every circuit live without you flipping breakers or stringing extension cords. We install automatic transfer equipment so the switchover happens in milliseconds, not minutes.

Battery Retrofit for Existing Solar
If solar panels already sit on your Ennis roof and you want storage added, we handle the full retrofit: AC coupling or DC replacement depending on your existing inverter age, integration of a backup gateway, and grid-interconnection paperwork. Older Ennis systems from the 2010s often have string inverters that can be AC-coupled to a battery without touching the array, while newer microinverter systems can go either route. We’ll tell you which approach saves money and which one gives cleaner backup performance, and the quote comes off your actual bill, not a sales script.

What happens when you call
- 1
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 Ennis
Gus’s Solar works with Tesla, Enphase, SolarEdge, FranklinWH, and the panel brands Ennis homeowners actually ask about: Qcells, REC, SunPower, and Panasonic. Because we stock common parts and maintain direct distributor accounts in the Dallas-Fort Worth metro, a warranty replacement or inverter failure on your Ennis system doesn’t mean waiting two weeks for a part to ship from California. We service what we install, and we also service systems other companies put in, because in a town like Ennis, word travels when you fix someone else’s mess properly.
Common Solar Battery Storage & Backup Problems We See in Ennis Homes
- Battery mounted on an unlevel garage slab shifts over wet-dry cycles. The expansive black-clay gumbo soil under Ennis causes slab heave that translates into conduit stress and communication faults on wall-mounted or floor-standing batteries. We check for level, add shimming or a reinforced pad, and anchor properly so the battery doesn’t fight the foundation.
- Older 100-amp panels get overlooked until permit stage. Many 1950s-1980s ranch homes in Ennis still carry original 100-amp electrical service. The city’s interconnection requirements will reject a battery and solar application unless the service is upgraded first. We include that line item in the first quote so you don’t get a surprise change order mid-project.
- Wall-mounted batteries on wood-frame homes sag without added blocking. Pre-WWII wood-frame houses near the historic downtown have interior studs that weren’t built to carry a 250-pound battery. Standard wall brackets alone can pull loose or sag. We add structural blocking and through-bolt anchors wherever the battery mounts on older framing.
- Spring hail damage to panels compromises the whole charging path. Ennis sits on a documented hail corridor. If your panels take strikes and lose output, the battery never charges fully, and you don’t know it until the next outage. We recommend Class 4 impact-rated panels on every Ennis install and we check array health during every service call.
Pricing for Solar Battery Storage & Backup in Ennis, TX
Battery storage pricing in Ennis runs on real numbers, and here they are. A single Tesla Powerwall 3 installed typically runs $14,500-$17,000 before any federal or Oncor incentives. An Enphase IQ Battery 5P system lands between $15,000-$18,000 depending on configuration. A whole-home backup setup with two batteries for a ranch-style home in the 75119 zip code generally falls in the $26,000-$34,000 range. Retrofit jobs that require a service panel upgrade add $2,500-$5,000 depending on the house. These are Ennis market prices, not national averages. Call (877) 550-6892 and bring your actual utility bill to the conversation. The quote is free, and the number you see is the number you pay.
We Also Serve Cities Near Ennis
Gus’s Solar covers Ennis and the surrounding Ellis County communities, including Waxahachie, Red Oak, Lancaster, and Hutchins. If you’re in one of those towns and looking for Solar Battery Storage & Backup in Ennis quality without the drive, our crew comes to you. Same pricing, same warranty, same Gus.
Serving Ennis, TX - Our Local Coverage Area
We’re based in the Ennis 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 Ennis
Most Ennis homes built before 1990 with original 100-amp panels will need a service upgrade to 200 amps before the city approves an interconnection for solar and battery storage. The gumbo-clay era ranch homes on streets like West Ennis Avenue and those radiating from downtown are the most common candidates. We include the upgrade cost in your first quote so there’s no sticker shock at permit stage. Call (877) 550-6892 for a free estimate on your specific panel.
Ennis sits on a storm track that produces frequent large hail from March through June, and local insurers already mandate Class 4 impact-rated roofing across much of Ellis County. We specify Class 4 rated panels on every Ennis install we do, and we wire rapid shutdown so the array can be isolated quickly if a storm damages the roof or the panels. The battery itself goes inside the garage or on a protected exterior wall, not out in the open where a hailstorm can hammer it. This isn’t an upsell. It’s just how you have to build here.
Yes, a properly sized battery with an automatic transfer switch will island your home when Oncor’s lines go down, which happens regularly in Ellis County during spring severe weather. The battery takes over in milliseconds, your critical loads stay live, and your solar array recharges the battery during daylight hours even while the grid is out. For a typical Ennis ranch home, one Powerwall 3 or two Enphase IQ Battery 5Ps covers refrigerator, lights, internet, a well pump if you’re on one, and selective HVAC use. Call (877) 550-6892 and we’ll size it from your actual bill, not a guess.
Yes, and this is where an honest installer will give you a straight answer instead of a pitch. As Oncor and retail electric providers shift toward time-of-use export rates, the credit you get for sending solar power back to the grid at noon keeps shrinking. A battery lets you store that midday power and use it during evening peak hours when grid power costs the most. For Ennis homeowners, that often makes battery payback faster than in cities with old-fashioned flat net metering. Bring us a year of your actual Oncor usage and we’ll run the numbers both ways.
The expansive black-clay gumbo soil under Ennis causes foundation movement on a scale that flatter, sandier markets don’t deal with. Garage slabs heave and settle through wet-dry cycles, which means a floor-mounted battery can shift enough to stress conduit runs and throw communication faults. Wall-mounted batteries on older wood-frame homes need added blocking so the wall can carry the weight through those same seasonal cycles. We check for slab leveling and add reinforcement before we mount anything, because in Ennis the ground moves, and your battery system has to be built for that reality. Call (877) 550-6892 for an assessment on your house.
Ready for battery backup you can count on in Ennis? Call Gus’s Solar at (877) 550-6892 for a free estimate. Bring your utility bill. Take two weeks to think about it. The price will be the same, and if a salesman needs an answer tonight, the answer is no.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Ennis and Ellis County. Founded in 2011, locally owned since day one.






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