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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 Horizon City
Solar battery storage in Horizon City runs between $11,000 and $18,500 for a typical single-battery install, and the single biggest variable is not the hardware. It’s how your system interacts with El Paso Electric’s interconnection process. Our Solar Battery Storage & Backup team has worked through EPE’s queue enough times to know exactly how to time the paperwork so your battery doesn’t sit idle for three months after the panels are on your roof. Call (877) 550-6892 and we’ll walk you through what your home in ZIP 79928 actually needs, not what a brochure says you should buy.
Why Gus’s Solar Is Horizon City’s Preferred Solar Battery Storage & Backup Company
We’re not a national outfit flying a crew in from Dallas. Gus Petrakis founded this company in 2011, published his name and license, and still answers his own phone. Horizon City homeowners call us for EV charger installation and more because they want a local company that understands El Paso Electric’s non-ERCOT grid, knows the stucco tract homes off Darrington Road and Eastlake Boulevard, and shows up in a truck with our name on the door, not a subcontractor’s.
Serving Horizon City means we’ve seen the same builder-grade electrical panels in Desert Winds, Horizon Heights, and the newer developments east of Ascencion Street. We know which homes have 200A panels with no spare breaker slot for a backup circuit. We know which attics hit 150°F in July and how to route conduit through them without cooking our crew or your wiring. That local knowledge means fewer surprises on install day and a battery system sized for how you actually use power, not how a generic calculator says you should.
Gus’s L.O.C.A.L. values apply here like everywhere: Local roots, On time, Community first, Accountable, Loyal. We answer the phone 24/7 with a live person. We quote the year-25 output, not the day-one brochure number. And if something isn’t done right, the 90-Day Done Right Promise means Gus makes it right. In writing. One call brings him back.
Our Solar Battery Storage & Backup Services in Horizon City
Tesla Powerwall Installation
A Tesla Powerwall 3 install in Horizon City typically runs $13,500 to $18,000 before any available incentives, including the Gateway and installation. These batteries pair well with EPE’s time-of-use rate structure, letting you charge when rates are low and pull from the battery during the utility’s peak pricing windows. We’ve installed Powerwalls on single-story stucco homes throughout 79928, and we handle the EPE interconnection filing as part of the job, front-loaded before equipment ships.

Enphase IQ Battery Installation
Enphase IQ Battery systems in Horizon City generally fall between $11,000 and $16,500 depending on whether you’re adding one 5P or stacking multiple units. The modular design works well with existing Enphase microinverter arrays, which is common on newer builds in Horizon City where Enphase equipment was the builder default. If your 200A panel lacks a dedicated backup breaker slot, we’ll install a subpanel and do it cleanly, not with a line-side tap that looks like an afterthought.

Whole-Home Backup Power
Whole-home backup in Horizon City usually requires two or more batteries plus a smart load panel, landing between $22,000 and $34,000. Most Horizon City homes are single-story and all-electric, so a single battery will cover essential circuits (refrigerator, lights, HVAC blower, internet) but won’t run the AC compressor indefinitely. We size whole-home systems against your actual EPE bill, naming circuits and running the math on what you can back up through a summer evening.

Battery Retrofit for Existing Solar
Retrofitting a battery onto an existing Horizon City solar system typically costs $11,000 to $17,000 depending on panel brand and inverter compatibility. This is one of our busiest jobs in Horizon City, because EPE’s net metering tariff changed the economics for solar-only systems, and a battery turns export-heavy afternoons into usable stored power. We route conduit through attic cavities carefully, code-compliant rapid shutdown included, and file the EPE battery interconnection application before the equipment arrives so your 60 to 90 day wait starts ticking early, not late.

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.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Horizon City
We work with Tesla, Enphase, and FranklinWH batteries, and service systems built on SolarEdge inverters, so your existing solar doesn’t lock you into one brand when it’s time to add storage. For Horizon City customers, we keep common replacement parts and battery units staged locally, which means faster turnaround when a warrantied component fails or you decide to expand your storage. Bring us a bill from your current system and we’ll tell you exactly what’s compatible and what isn’t. No vague hand-waving.
Common Solar Battery Storage & Backup Problems We See in Horizon City Homes
- Builder-installed 200A panels with no backup breaker slot. Most Horizon City homes built since 2005 have full panels and no spare positions. That forces either a subpanel install or a line-side tap, and the latter can triple labor time and inspection complexity if done wrong. We’ll tell you which route your panel needs before we quote.
- EPE’s 60 to 90 day interconnection queue. Your battery can be physically installed and wired correctly, then sit dark for two to three months while El Paso Electric processes the interconnection application. Homeowners often blame the installer for delays. We front-load the EPE filing before equipment is even ordered so your clock runs while the hardware is in transit.
- Dust storm caliche on inverter cooling fins and fan bearings. Horizon City’s frequent dust storms deposit fine alkaline particles inside inverter enclosures. That grit eats cooling fins, seizes fan bearings, and causes thermal derating, which quietly reduces battery and inverter output. A scheduled cleaning is not a cosmetic upsell here. It’s the difference between a system that lasts 10 years and one that fails at year 4.
- Attic heat destroying conduit and connections. Attic cavities in Horizon City routinely exceed 150°F in summer. Conduit that’s not heat-rated, or connections made with the wrong insulation, fail early. Our crew routes every retrofit with that heat in mind, because we’ve seen what August does to cheap materials.
Pricing for Solar Battery Storage & Backup in Horizon City, TX
Here’s what Horizon City homeowners can expect to pay, real numbers from jobs we’ve done in 79928:
- Single Tesla Powerwall 3 install: $13,500 to $18,000
- Single Enphase IQ Battery 5P: $11,000 to $14,500
- Battery retrofit to existing solar: $11,000 to $17,000
- Whole-home backup (2+ batteries, smart panel): $22,000 to $34,000
- Subpanel add for backup circuits: $1,800 to $3,200
- EPE interconnection filing and management: Included with install
What changes your price: your panel’s spare capacity, the distance from your electrical panel to the battery location, whether we’re tying into SolarEdge or Enphase or Tesla equipment, and how many circuits you want backed up. We don’t quote off a brochure and we don’t add line items after the fact. The number we write on your estimate is the number you pay. Period. Call (877) 550-6892 for a free estimate and we’ll come look at your panel, your attic, and your EPE bill. Take two weeks to think about it. The price will be the same.
We Also Serve Cities Near Horizon City
In addition to Horizon City, Gus’s crew serves Solar Battery Storage & Backup in Horizon City‘s neighboring communities: Socorro, Socorro Mission Number 1 Colonia, San Elizario, and Homestead Meadows North. Same local knowledge, same live person on the phone, same 90-Day Done Right Promise.
Serving Horizon City, TX - Our Local Coverage Area
We’re based in the Horizon City 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 Horizon City
EPE’s tariff credits your exported solar at a lower rate than what you pay for imported power, which means storing your excess production in a battery instead of selling it cheaply back to the utility typically shortens your payback by 3 to 6 years compared to a solar-only system. Your exact payback window depends on which EPE rate schedule you’re on and how much of your usage falls during peak pricing hours. Call (877) 550-6892 with your last 12 months of EPE bills and we’ll run the year-25 math on your actual usage, not a generic assumption.
El Paso Electric operates outside the ERCOT grid that covers most of Texas, so every residential battery in ZIP 79928 must go through EPE’s own interconnection application process. That queue typically runs 60 to 90 days after the physical install is complete. It’s not a defect in your system, it’s a utility process nobody can skip. Gus’s crew files the EPE application before your equipment even ships, which means your wait starts running while the battery is still in transit.
Yes, and the stucco construction often makes the job cleaner because our crew can route conduit through the attic and down an interior wall cavity rather than running exposed conduit across your exterior stucco facade. The three things that determine feasibility are your current inverter brand, your panel’s spare capacity, and whether your roof conduit runs are accessible. We’ve retrofitted batteries onto SolarEdge, Enphase, and older string-inverter systems throughout Horizon City.
Yes, and more than most people realize. The caliche dust that blows through Horizon City during spring wind events settles into inverter cooling fins and fan bearings, causing thermal derating that can cut output 5 to 15 percent before you notice anything visually. We recommend annual cleaning on battery-coupled systems in Horizon City, and we’ll tell you if your equipment shows early wear when we’re out for the estimate.
The two big ones we see in Horizon City are obsolete panel bus ratings on 2000s-era builds and attic conduit runs that don’t meet current heat derating standards under the Chihuahuan Desert’s 150°F attic temperatures. NEC rapid shutdown requirements apply to the solar array, but tying a battery into a system that wasn’t originally designed for one often requires upgrading breakers, adding a subpanel, and re-labeling disconnect points. We handle all of that in the quote, not as a surprise change order at install.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Horizon City since 2011.






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