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 Decatur
Most Decatur homes get their electricity from Wise Electric Cooperative, not Oncor. That single fact changes everything about how we size a battery system here. If you’re running a solar array and still watching the meter spin backward at avoided-cost rates, you’re giving power away for pennies. A properly sized battery stops that. Gus’s Solar has been designing battery storage for Wise County homes long enough to know the co-op’s interconnection rules by heart, and our crew is in Decatur every week. Call (877) 550-6892 for a straight answer, not a sales pitch.
Key takeaways:
- Wise Electric Cooperative credits excess solar at avoided-cost, which means batteries pay for themselves faster here than in Oncor territory.
- Whole-home backup on a 2,000-3,000 sq ft Decatur house typically needs 10-20 kWh of storage.
- Battery retrofits on older homes often require a main panel or rapid shutdown update first.
- Gus’s Solar installs and services Tesla Powerwall, Enphase IQ Battery, and FranklinWH systems.
- Free estimates, no trip charge inside Wise County, and a live person answers 24/7.
Why Gus’s Solar Is Decatur’s Preferred Solar Battery Storage & Backup Company
We’re not a door-knocking outfit from three states away. Gus Petrakis founded Gus’s Solar in 2011, put his name on the truck, and still answers his own phone. That matters in Wise County, where word travels fast and a handshake still means something. Our team has retrofitted batteries on 1900s-era homes near the courthouse square, on mid-century ranches along US-287, and on new exurban builds on big rural lots throughout 76234. The electrical panels vary wildly. The co-op’s rules stay the same. We know both.
Decatur homeowners tend to ask harder questions than most, and that’s a good thing. Many of them watched Barnett Shale royalty checks roll in for a decade and never thought twice about the electric bill. That money’s gone now, and co-op rates keep climbing. When they call us, they want the year-25 math, not the day-one brochure number. That’s exactly how Gus quotes it. Bring us a bill, we’ll bring you the math. Take two weeks to think it over. The price won’t change.
Every job we do in Decatur carries the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Gus back. Our background-checked, uniformed crew does the install themselves. We don’t hand your battery system to a subcontractor who’s never been to Wise County before.
Our Solar Battery Storage & Backup Services in Decatur
Tesla Powerwall Installation
The Tesla Powerwall 3 is a strong fit for Decatur homes with whole-home backup ambitions. A single unit holds 13.5 kWh, which covers essentials for most 2,000-sq-ft ranch-style houses in the 76234 area through a summer evening. For rural lots with wells, septic pumps, and freezers, we usually recommend two units. Hail country means we pay attention to where the battery mounts: shaded, protected from the west sun, and away from the worst of a spring storm’s path.

Enphase IQ Battery Installation
Enphase IQ Battery systems work especially well on Decatur homes that already have Enphase microinverters on the roof, which is most of what we installed between 2015 and 2022. The IQ Battery 5P puts out 5 kWh with strong surge capacity, and you can stack modules as your needs grow. We recently retrofitted a 2008-built ranch on County Road 4198 with an IQ Battery 5P. Before we touched anything, we double-checked the old string inverter’s rapid-shutdown compliance. The co-op stalls interconnection without it.

Whole-Home Backup Power
A whole-home backup system in Decatur means your air conditioner, well pump, refrigerator, and lights all keep running when a summer storm takes out the feeder line. Wise County sits in North Texas hail country, and severe weather outages aren’t a hypothetical here. We design these systems around real load calculations from your utility bill, not guesswork. Most Decatur homes need 10-20 kWh of storage depending on HVAC size and whether you’re on propane or all-electric.

Battery Retrofit for Existing Solar
Plenty of Decatur homeowners installed solar between 2015 and 2020 under the old assumptions about net metering. Then their true-up statement from Wise Electric Cooperative showed credits at avoided-cost, which is a fraction of the retail rate. A battery retrofit changes that equation. You store daytime production instead of exporting it for pennies. The catch is that many older systems, especially the 1900s-era panels we see near the courthouse square, need a sub-panel or service upgrade before the battery can legally interconnect. We handle that as part of the same job and tell you exactly what’s needed before we start.

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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Decatur
We install and service Tesla Powerwall, Enphase IQ Battery, and FranklinWH across Wise County, and we stock common replacement parts locally so you’re not waiting on a freight shipment from California. If your existing system runs on Panasonic, Qcells, or REC panels with a SolarEdge or Enphase inverter, our crew knows the hardware. We don’t play favorites with brands; we size the battery to your electrical panel, your co-op tariff, and your actual usage. That’s a Solar Battery Storage & Backup decision built on math, not marketing.
Common Solar Battery Storage & Backup Problems We See in Decatur Homes
- Undersized batteries from bad math. A homeowner gets a Fort Worth-style net metering quote, buys a 10 kWh battery, and still exports half their daytime production at avoided-cost. In Wise County, the battery has to capture most of what the panels make, not just provide backup.
- Inverters dying early from Texas heat. We see inverters mounted on west-facing garage walls or in unventilated attics that bake through 100°F-plus summers. When the inverter fails, the battery shuts down with it. Placement and ventilation are design decisions, not afterthoughts.
- Rapid shutdown roadblocks on older panels. Homes built before 2010 sometimes have main panels without a compliant rapid-shutdown pathway. The battery sits in the garage, fully installed, for weeks while the co-op waits on the paperwork. We identify this before we ever order equipment.
- Battery expansion headaches. A homeowner bought a small battery years ago, then added an EV or a second refrigerator. Now they need more storage but the original inverter is maxed out. We size systems with expansion headroom so this doesn’t happen twice.
Pricing for Solar Battery Storage & Backup in Decatur, TX
A single Tesla Powerwall 3 installed in Decatur typically runs $14,000-$17,000 before federal tax credits. An Enphase IQ Battery 5P install lands around $8,500-$11,000 before incentives, though most homes we serve need two for real backup coverage. Whole-home backup on a larger rural property with two Powerwalls generally runs $28,000-$34,000. Battery retrofits vary with panel age and condition. If your main panel needs a service upgrade or rapid-shutdown retrofit, budget an additional $2,500-$5,000. We quote off your actual utility bill, and the number we quote is the number you pay. Call (877) 550-6892 for a free estimate. No trip charge inside Wise County.
What Affects Battery Cost in Decatur
- Battery capacity in kWh and whether you want whole-home or partial backup
- Main panel condition and whether a sub-panel or service upgrade is required
- Mounting location and distance from your inverter
- Whether you’re adding the battery during a new solar install or retrofitting an existing array
We Also Serve Cities Near Decatur
Our crews work throughout Decatur and the surrounding Wise County communities. If you’re in Briar, Azle, Eagle Mountain, or Lantana, you get the same local pricing, the same no-trip-charge policy, and the same owner on the phone when you call.
Serving Decatur, TX - Our Local Coverage Area
We’re based in the Decatur 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 Decatur
Most Decatur homes need 10-20 kWh of storage, with 13.5 kWh (one Tesla Powerwall 3) being the sweet spot for a typical 2,000-sq-ft house. The right size depends on your daytime solar production, your evening and overnight load, and whether you heat with electricity or propane. The goal is to capture most of what your panels produce and use it after dark, rather than exporting at avoided-cost. We’ll pull your last 12 months of usage from your Wise Electric Cooperative bill and size it precisely. Call (877) 550-6892 and bring us a bill.
We’re in Decatur at least once a week, usually more, and can typically schedule service within 3-5 business days for non-emergency work. A live person answers 24/7, and if your battery has shut down and you’re running on grid power, we’ll talk you through what’s safe to check before we send the crew out.
Yes. We cover all of 76234, from the courthouse square out to County Roads 4198, 4220, and the large-lot parcels west of town toward Alvord. Rural properties with wells, propane tanks, and outbuildings are a common job for us and often benefit from ground-mounted solar paired with a larger battery bank.
Because Wise Electric Cooperative credits excess solar at avoided-cost, which is typically 3-5 cents per kWh, compared to Oncor’s retail-rate net metering for legacy customers 45 miles east in Fort Worth. Without a battery, every kWh you export during the day gets credited at a fraction of what you pay to buy it back at night. A battery changes the math entirely. Gus’s Solar has been designing around this co-op reality for years.
Yes. Every solar battery job we do in Decatur carries the same written guarantee: if it’s not done right, Gus makes it right. That covers installation workmanship, not manufacturer defects, which are handled under the battery’s own warranty. One call brings us back. No ticket numbers.
Yes, and it’s one of the most common calls we get in Decatur. Many homeowners who went solar between 2015 and 2020 bought systems sized under old net-metering assumptions. The panels work fine, but the economics need a battery. We’ll inspect your inverter, check rapid-shutdown compliance, and tell you exactly what’s needed. The retrofit itself usually takes one to two days.
Call Gus’s Solar for Battery Storage in Decatur
If your Wise Electric Cooperative true-up statement is showing export credits at avoided-cost, a battery is the single best investment you can make in your existing solar system. If you’re building new, we’ll size the array and the battery together so you’re not leaving money on the table from day one. If a salesman needs an answer tonight, the answer is no. Take two weeks. The price will be the same. Call (877) 550-6892 for a free estimate, or stop a crew member when you see the truck in Decatur. We’ll talk.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Decatur and Wise County since 2011.






Before
After
Before
After
Before
After