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Fast, Reliable Solar Battery Storage & Backup Across Four Corners
If you live in Four Corners and you’re tired of watching the lights flicker every time a summer storm rolls through, a home battery is the answer. Solar battery storage in Four Corners, TX typically costs between $9,500 and $16,800 fully installed for a whole-home setup, and the job usually takes one to three days once permits clear. But here’s the part most national outfits won’t tell you: in the 77083 ZIP, your project will almost certainly start with a 100-amp electrical panel upgrade, not a battery on the wall. Our Solar Battery Storage & Backup team has coordinated enough City of Houston permits in this neighborhood to know exactly how the timeline runs, and we’ll walk you through it before we ever ask for a signature. Call (877) 550-6892 and bring us your CenterPoint bill. We’ll bring the math.
Why Gus’s Solar Is Four Corners’s Preferred Solar Battery Storage & Backup Company
We answer our own phone. That sounds small, but when a rolling blackout hits southwest Harris County at 9:40 on a Tuesday night and your battery throws an error code, the difference between a live person and a call center three states away is the difference between sleeping cool and sleeping on the floor. Gus Petrakis founded this company in 2011 and he publishes his name, address, and license number. The crew that shows up in Four Corners is Gus’s crew. Background-checked, uniformed, and trained on the exact equipment we’re installing. No subs. No day labor. No mystery.
Four Corners sits in a pocket of Harris County where homes were built fast in the 1970s and 1980s, and a lot of them still carry the original 100-amp service. We see it weekly. We also see post-Harvey roofs with fresh decking that’s actually in great shape for solar mounting. Knowing both of those things before we show up changes the quote, the timeline, and the total cost. That’s what local means. When a Four Corners customer calls us, we already know what their house probably looks like.
The 90-Day Done Right Promise covers every battery job we do in Four Corners. If something isn’t right, Gus comes back and makes it right. In writing, on every job. Take two weeks to think about it. The price will be the same.
Our Solar Battery Storage & Backup Services in Four Corners
Tesla Powerwall Installation
A Tesla Powerwall 3 installed in a Four Corners home runs $11,000 to $15,500 fully installed, including the gateway, mounting hardware, and labor. It’s the battery we recommend most often for 77083 homes because it handles whole-home surge loads well and integrates cleanly with existing solar. But on houses with 100-amp panels, that number climbs by $2,800 to $4,200 for the panel upgrade. We’ll quote both line items separately so you see exactly what you’re paying for.

Whole-Home Backup Power
Whole-home backup in Four Corners means your AC, refrigerator, lights, and well pump (if you have one) keep running through a CenterPoint outage. That typically takes two to three batteries plus the panel upgrade, landing between $22,000 and $34,000 before any federal tax credit. It’s a big number. But if you’ve lived through a summer outage on Cook Road after a storm, you already know what a running air conditioner is worth. We design the system off your actual utility bill usage history, not a brochure number.

Battery Retrofit for Existing Solar
If you put solar on your Four Corners roof before 2021, you probably don’t have a battery. That’s okay. We retrofit Enphase IQ Battery systems onto existing solar arrays regularly, and the process starts with confirming your inverter’s compatibility. Most 2017-to-2020 string inverters will need a partial or full swap to support battery management. In Four Corners, that retrofit typically lands between $10,500 and $14,000 including the battery, the controller, and the integration work. The good news: those post-Harvey re-roofs often mean your racking and mounting are already solid, so we’re not redoing roof work on top of the electrical work.

Battery Replacement & Expansion
Batteries don’t last forever. Most lithium-iron-phosphate units carry a 10-year warranty, but older nickel-manganese-cobalt packs from early installs are hitting end-of-life right about now. If your Four Corners battery isn’t holding charge like it used to, or you’re adding an EV and need more stored capacity, we’ll test what you have and give you an honest answer. That might be a replacement, or it might be an expansion with a new FranklinWH or Panasonic unit stacked alongside the old one. We don’t sell you a new battery if the current one still has life.

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 Four Corners
We install and service Tesla Powerwall, Enphase IQ Battery, and FranklinWH systems in Four Corners, along with panel brands like Panasonic, Canadian Solar, and JinkoSolar. We stock common parts and firmware locally for fast turnaround when something fails, and we service batteries other companies installed. If a salesman tells you their brand is the only one that works in Houston humidity, that’s your cue to hang up. We’ll tell you which battery fits your panel configuration, your budget, and your actual usage, not which one pays us the highest margin.
Common Solar Battery Storage & Backup Problems We See in Four Corners Homes
- 100-amp panels tripping under battery load. The original electrical service in many 77083 homes simply can’t pass through the current a whole-home battery system demands. You’ll get a code fault, a dead battery, and no power when you need it most. The fix is a 200-amp panel swap, and it’s almost always the first step we schedule.
- Houston humidity lifting conduit anchors. Decades of moisture cycling in Four Corners attics softens old decking, and when a summer storm shakes the roof, those anchors loosen. That trips rapid-shutdown faults and knocks your system offline right when you need it running. We pre-drill and seal every penetration with flashing rated for Gulf Coast humidity.
- Post-Harvey roofs hiding undersized rafters. The new decking from a 2017 or 2018 re-roof can be perfectly sound while the rafters underneath were never sized for the added point load of a 250-pound battery bank. We check the framing before we mount anything. If it’s not right, we say so before we quote a retrofit.
- Fuse boxes with degraded bus bars blocking interconnection. We still find old fuse boxes in corners of 77083 where the bus bar has corroded from years of heat and humidity. A battery inverter can’t interconnect to that. The panel upgrade has to happen first, and City of Houston inspection has to sign off. We handle that whole sequence in-house.
Pricing for Solar Battery Storage & Backup in Four Corners, TX
Here’s what we actually charge in Four Corners, based on jobs we’ve completed in 77083.
- Single battery installation (Tesla Powerwall or Enphase IQ): $10,500-$15,500 installed
- 100-to-200-amp panel upgrade (required in most homes here): $2,800-$4,200
- Whole-home backup (two to three batteries, panel upgrade included): $22,000-$34,000
- Battery retrofit onto existing solar (no panel upgrade needed): $9,500-$12,500
- Battery replacement (single unit, like-for-like): $8,200-$11,800 installed
Those ranges reflect the reality of Four Corners: older electrical service, City of Houston inspection requirements, and humidity-driven structural checks. The free estimate we give you is built off your actual bill and your actual panel, keyed to what we see in the field, not a generic brochure number. Call (877) 550-6892 and we’ll schedule a walkthrough. No trip charge for Four Corners addresses. If a salesman needs an answer tonight, the answer is no.
We Also Serve Cities Near Four Corners
If you’re in Mission Bend, Alief, Pecan Grove, or New Territory, you’re close enough that we’re already in your neighborhood regularly. Solar Battery Storage & Backup in Four Corners is a hub for us, and we run crew routes through the surrounding towns most weeks. Same team, same pricing, same live person on the phone.
Serving Four Corners, TX - Our Local Coverage Area
We’re based in the Four Corners 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 Four Corners
Yes, in almost every 77083 home we see, the 100-amp panel has to be replaced with a 200-amp main breaker panel before CenterPoint Energy will approve interconnection for a Tesla Powerwall. The panel upgrade is a separate line item from the battery itself, and City of Houston permitting adds inspection time to the schedule. We pull the permit, do the swap, and coordinate the inspection before we even mount the battery. Call (877) 550-6892 for an exact quote on your home’s panel and battery together.
The City of Houston permitting process for 77083 takes two to three weeks longer than a comparable install in unincorporated Fort Bend County because the city inspection sign-off on the electrical upgrade is mandatory before solar interconnection can move forward. We’ve coordinated enough of those inspections in Four Corners to know the sequence and the inspectors. It’s slower, but it’s predictable, and we’d rather tell you that upfront than let you find out in week three.
Yes, if it’s sized correctly. A single Tesla Powerwall 3 or Enphase IQ Battery will run a 3-to-4-ton central AC unit for roughly four to six hours in Four Corners’s July heat, assuming you’ve also got the 200-amp panel in place. A two-to-three-battery whole-home setup will carry you through a full overnight outage. We size the battery bank off your actual summer usage from your CenterPoint bill, not a generic square-footage table. That’s the only honest way to quote it in this climate.
Yes, and we do it often in Four Corners, especially on post-Harvey homes where the roof decking is in good shape and the racking is solid. The main thing we check first is your inverter. Systems installed before 2021 typically don’t have the battery-management hardware built in, so you’ll likely need a partial inverter swap alongside the battery. Expect $10,500 to $14,000 total for a single-battery retrofit. Call (877) 550-6892 and we’ll tell you exactly what your system needs.
Your battery takes over instantly and your solar array keeps producing, sending power to the battery and directly to your home’s critical circuits. The gateway isolates your system from the grid so line workers aren’t backfed. When CenterPoint restores power, the gateway syncs back automatically. In Four Corners, the most common reason this fails is an undersized panel or a loose conduit anchor from storm-driven roof movement, both of which we check during install and then again at your annual service.
Call Gus’s Solar for Battery Backup in Four Corners
We’re a locally owned shop, Gus Petrakis puts his name on every job, and a live person answers the phone 24/7. Bring us your CenterPoint bill. We’ll quote the year-25 output, not the day-one brochure number. The estimate is free, the walkthrough is honest, and there’s no pressure to sign anything tonight. Take two weeks. Think about it. The price will be the same. Call (877) 550-6892.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Four Corners and Harris County with clean, honest energy work since 2011.






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