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Fast, Reliable Solar Battery Storage & Backup Across Southlake
Solar battery storage in Southlake costs $14,000 to $22,500 for a single Tesla Powerwall 3 or FranklinWH aPower installed, and $22,000 to $35,000 for a two-battery setup covering whole-home backup. Most Southlake installs take one to two days on site, and our crew typically reaches homes in the 76092 zip code within one business day for quotes and service calls. We know Southlake’s homes, its HOAs, and its electrical panels better than any out-of-town installer because we work here every week. Call (877) 550-6892 and a live person answers, day or night.
Why Gus’s Solar Is Southlake’s Preferred Solar Battery Storage & Backup Company
Gus Petrakis founded Gus’s Solar in 2011 and has spent 29 years in the trade, but the reason Southlake homeowners keep calling us back is simpler than that: we show up when we say we will, we put pricing in writing up front, and the crew on your roof works for Gus, not for a subcontractor. We have installed and serviced battery systems throughout Timarron, Monticello, Estes Park, and neighborhoods along Southlake Boulevard and North White Chapel Boulevard, so we know the panel layouts, HOA rules, and utility setup already before we knock on your door.
We do not run high-pressure sales. Bring us your Oncor bill and we’ll build the battery math off your actual usage, not a brochure estimate. If a salesman needs an answer tonight, our answer is no, and yours should be too. Take two weeks. The price will be the same.
Gus’s crew is background-checked, uniformed, and trained on Tesla, Enphase, and FranklinWH equipment. Every job is backed by our 90-Day Done Right Promise: if it is not right, Gus makes it right, in writing. And when you call (877) 550-6892, a live person picks up, not a voicemail or a call center three states away.
Our Solar Battery Storage & Backup Services in Southlake
Tesla Powerwall Installation in Southlake
A single Tesla Powerwall 3 stores 13.5 kWh and is the most common battery we install in Southlake, usually paired with a whole-home backup gateway. In Southlake’s large executive homes, one Powerwall often covers critical loads like refrigeration, networking, security, and one AC unit, while two Powerwalls cover nearly everything including two 4-ton AC units. We handle the full electrical integration, from the main service panel to the gateway to your Wi-Fi monitoring.

Enphase IQ Battery Installation in Southlake
The Enphase IQ Battery 5P is a modular system we recommend for Southlake homes with existing Enphase microinverter arrays, because it slots into the same monitoring platform without adding a second app or gateway. We install the 5P in 5 kWh increments, which lets homeowners start with two or three modules and add capacity later without replacing hardware. For homes in Timarron or other HOA-managed communities requiring garage placement, the IQ Battery’s compact, wall-mounted profile is often the easiest to get through architectural review.

Whole-Home Backup Power in Southlake
Whole-home backup in Southlake means sizing storage to cover two HVAC systems, pool pumps, electric ovens, and everything else a 4,000 to 6,000 square foot house draws. We do a load calculation off your actual Oncor interval data before quoting anything, so the system is sized to your home’s real peak draw, not a rule-of-thumb number. For most Southlake homes, that lands at two to three batteries and a smart load-management setup that sheds non-essential circuits during an outage.

Battery Retrofit for Existing Solar in Southlake
If you already have panels on your Southlake roof, adding a battery does not require tearing anything out. We retrofit Tesla Powerwall 3 and FranklinWH aPower units into existing systems using AC coupling, which works with most string and microinverter setups without replacing your current inverter. We run the numbers against your existing production and your current retail electric plan, because in Oncor territory the right battery configuration depends heavily on which buyback rate you are on.

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.
Solar Battery Storage & Backup Brands We Service in Southlake
Our team works with Tesla, Enphase, FranklinWH, and Panasonic battery systems, and we keep common parts and firmware tools stocked for Southlake service calls so we are not waiting on a distributor when your system flags a fault. Whether you need a second Powerwall added, an Enphase 5P swapped under warranty, or a FranklinWH aPower commissioned for a new build, the same crew that installs it is the crew that services it. No subcontracted labor, no hand-off to a third-party warranty line.
Common Solar Battery Storage & Backup Problems We See in Southlake Homes
- Hail damage to outdoor battery enclosures and disconnects. Southlake sits squarely in North Texas’s hail corridor, and Class 4 impact can crack a battery’s outdoor-rated enclosure or knock out the external disconnect, leaving your system unable to island during the next outage. We stock replacement enclosures and properly relocate outdoor hardware to shielded wall sections wherever possible.
- Undersized storage for multi-pitch luxury rooflines. Southlake’s complex hip and turret sections push arrays onto rear or east-facing slopes, cutting daily production below what a battery needs to fully recharge in winter. We design retrofits that match battery capacity to your actual azimuth-limited output, not the panel’s rated number.
- Battery not paired with the right retail electricity plan. Southlake sits in Oncor’s deregulated service territory, so there is no standard net metering. If you are on a poor solar buyback rate, your battery is not doing the financial work it should. We audit your EFL and recommend a plan that pays you properly for stored power dispatched at peak pricing windows.
- HOA-required garage placement causing commissioning issues. Some Timarron and Monticello architectural boards require interior battery placement, which means longer conduit runs, dedicated circuits, and in some cases garage ventilation or fire-code separation upgrades. We handle the full HOA submittal package and the electrical work, so you do not end up with a system that never gets final approval.
Pricing for Solar Battery Storage & Backup in Southlake, TX
A single Tesla Powerwall 3 installed in Southlake runs $14,000 to $17,500 before the 30% federal tax credit. A FranklinWH aPower lands in the $15,500 to $19,000 range installed, and an Enphase IQ Battery 5P runs about $5,500 to $7,000 per module, with most Southlake homes taking two to three modules. Retrofit installations cost $2,000 to $4,500 more than new-construction battery installs because of the electrical panel work and conduit runs required to tie into an existing solar system. Whole-home backup for a 4,000+ square foot Southlake home with two AC units typically runs $22,000 to $35,000 before credits. The federal investment tax credit covers 30% of the total system cost, and we prepare all the paperwork. Call (877) 550-6892 for an exact quote off your actual bill, free.
Why Southlake’s HOAs, Hail, and Oncor Make Battery Design Different Here
Southlake consistently ranks among the highest-income cities in Texas, and its solar market reflects that: homeowners are buying large, premium systems where HOA aesthetic compliance and architectural fit drive the sale as much as payback period. Texas Property Code allows HOAs to restrict panel placement to non-street-visible slopes, and Southlake’s highly active neighborhood architectural review boards, common in communities like Timarron, routinely force installations onto rear or east-facing sections, requiring installers to engineer around reduced output from the start. What does that mean for batteries? It means the storage system has to be sized and programmed to compensate for an array that may be producing 20 to 30 percent less than a south-facing roof would.
Now layer in the hail corridor and the deregulated market. Southlake sits in one of the highest large-hail frequency zones in the country, so battery enclosures and disconnects need impact-rated shielding and smart placement. And because Southlake falls in Oncor’s territory with no standardized net metering, the battery’s entire economic case depends on choosing the right retail electric provider. A homeowner on a flat buyback plan forfeits the arbitrage value of stored power. We walk every Southlake client through that choice before quoting equipment, because the battery decision and the retail plan decision are the same decision here. That conversation simply does not happen in cities with municipal utilities and fixed net metering.
Our crew recently retrofitted a Tesla Powerwall 3 into a custom home in Timarron where the HOA required the battery be located inside the garage, away from the street-facing elevation. We ran a dedicated 60A circuit, integrated the Powerwall with the existing Enphase microinverters, and set the system to cover the home’s two 4-ton AC units during Oncor’s peak pricing windows, keeping the homeowner’s true-up statement near zero. That job took two days, and it passed the HOA review on the first submittal because we knew exactly what the board was looking for.
We Also Serve Cities Near Southlake
Beyond Southlake, Gus’s crew works regularly in Colleyville, Grapevine, Roanoke, and Trophy Club. Southlake’s HOA requirements and Oncor interconnection process are not identical to those neighboring cities, but we are fully familiar with each local jurisdiction and can usually pull permits faster because we work these municipalities every month.
Serving Southlake, TX - Our Local Coverage Area
We’re based in the Southlake 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 Southlake
Texas Property Code allows HOAs in Southlake to restrict solar panel placement to slopes not visible from the street, and many boards in communities like Timarron also require battery equipment to be installed inside garages or behind screened enclosures rather than on exterior walls. This means your array may face east or rear, producing less than a south-facing system, and your battery may require a longer conduit run plus garage ventilation or fire-code separation upgrades. We prepare the complete HOA submittal package, and we design the battery capacity around your actual, azimuth-limited production so you are not paying for storage your panels cannot fill. Call (877) 550-6892 and we will pull the HOA requirements for your community before you commit to anything.
Yes, a two-battery system, typically two Tesla Powerwall 3s or two FranklinWH aPower units, can carry two 4-ton AC units, but only if the system includes a soft-start or smart load-management setup. Southlake’s executive homes often draw 12 to 16 kW at peak cooling load, which exceeds what a single battery can deliver on its own. We size storage from your actual Oncor interval data and install load-shedding controls so your HVAC, refrigeration, and security stay up during an outage even when both AC compressors cycle. Get an exact load calculation at (877) 550-6892.
It makes more sense here than in most places, because Southlake sits in Oncor’s service territory with no standardized net metering, and the retail electric plan you choose determines whether your battery earns or just sits there. The right setup pairs your battery with a free-nights or time-of-use plan so you charge from solar during the day and discharge against peak-priced grid power in the late afternoon. Homeowners on the wrong buyback plan can see payback stretch well beyond the equipment’s useful life, so we review your EFL line by line before quoting storage.
In most cases, yes. We retrofit Tesla Powerwall 3 and FranklinWH aPower units into existing systems using AC coupling, which works with most string inverters and Enphase microinverter arrays without replacing your current inverter. The retrofit adds a dedicated breaker, a gateway or transfer switch, and a new conduit run, typically adding $2,000 to $4,500 to the battery equipment cost. If your system is Enphase, the IQ Battery 5P integrates directly into the Enphase monitoring platform. Call (877) 550-6892 with your inverter model and we will tell you whether a retrofit is straightforward before we schedule anything.
Southlake sits in North Texas’s most active hail corridor, so battery enclosures and outdoor disconnects need impact-rated shielding and careful placement, often on a garage side wall or under an eave rather than exposed on a south-facing elevation. Class 4 hail can crack an enclosure or destroy a disconnect, and if the system cannot island when the grid drops, the battery is useless in an outage. We install hail guards and place outdoor hardware where it gets natural structural protection, and we stock replacement enclosures locally so a hailstorm does not leave you down for a week waiting on a distributor.
Call Gus’s Solar for Solar Battery Storage & Backup in Southlake, TX
Bring us your Oncor bill and we will bring you the math. No signature tonight, no pressure, no number that changes at the door. Gus Petrakis puts his name on every job we do in Southlake, and the 90-Day Done Right Promise means if it is not right, one call brings him back. Call (877) 550-6892 for a free estimate, or to schedule a battery inspection for your existing system. A live person answers, 24/7.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Southlake and the surrounding DFW area since 2011.






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