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AfterFast, Reliable Commercial Solar Installation Across Houston
Commercial solar in Houston is a different animal than it is in California or New York, and the math starts with one hard fact: ERCOT doesn’t offer true net metering. You’ll get wholesale buyback rates for exported power, somewhere around $0.03-$0.05 per kWh, while you’re paying $0.09-$0.15 per kWh for what you pull from the grid. That changes everything about how we size a system here. Since Winter Storm Uri, the first question Houston business owners ask us is whether the panels will keep the lights on in another freeze. The answer, with the right battery and load design, is yes. Call (877) 550-6892 and we’ll walk through your actual usage data, your roof, and your appetite for backup power before we quote a single number.
Why Gus’s Solar Is Houston’s Preferred Commercial Solar Installation Company
Gus Petrakis founded this company in 2011, and his name is on the truck, the building, and every contract we sign. That matters in Houston, where out-of-state installers roll in after a hurricane or a freeze, collect deposits, and disappear by the time permits get complicated. We’re not that shop. We have a published address, a license number anyone can verify, and a live person answers the phone 24/7. Not a voicemail. Not a ticketing portal. A person.
Houston’s commercial solar market has a specific failure pattern we’ve seen play out repeatedly since we started serving the inner loop and the industrial corridors around 77008, 77009, 77010, and 77011. A building owner gets a quote from a national outfit that assumes net metering, the system gets installed, and the payback period turns out to be twice what was promised because exported power only earns wholesale rates. We model the year-25 output, not the day-one brochure number. Bring me a bill, Gus says, and I’ll bring you the math. Take two weeks to think about it. The price will be the same when you come back.
Our Commercial Solar Installation team handles everything from 50 kW retail rooftops to multi-hundred-kilowatt industrial arrays. We’ve done work in the Heights, along Washington Avenue, in the East End, and out toward the Ship Channel. We know which buildings CenterPoint will flag for service upgrades before you even file the interconnection application. That kind of local knowledge saves months of project delay.
Our Commercial Solar Installation Services in Houston
Commercial Rooftop Solar
Most Houston commercial roofs are flat TPO or modified bitumen, which is actually good news for solar. We use ballasted racking systems on flat roofs where the structure can handle the weight, and mechanically attached systems where wind uplift is the bigger concern. Harris County’s exposure to Gulf storms means every rooftop system we design is engineered to the 130+ mph wind-load standards TWIA requires. We flash every penetration properly, and Gus’s own crew does the install. No subs.
Warehouse & Industrial Solar
Warehouses are the sweet spot for commercial solar in Houston. Big flat roofs, high daytime load from lighting and HVAC, and plenty of square footage for a meaningful array. We recently engineered a 240 kW rooftop system on a 1940s-era warehouse near Washington Avenue in the 77007 area. The existing 100-amp service had to be upgraded to 200-amp before CenterPoint would accept the interconnection application. That’s a common hurdle on older inner-loop industrial buildings, and we plan for it from day one instead of discovering it six weeks into the permit process.
Solar Carport Installation
Carports solve two problems at once: they generate power and they shade vehicles from Houston’s brutal summer sun. We usually pair carport arrays with EV charger infrastructure, since a business that’s adding solar is often thinking about fleet electrification next. Carport structures need deeper foundations and different wind engineering than rooftop systems, especially in the Gulf Coast’s high-wind zones. We handle the full structural package.
Commercial Battery Storage
This is the part of the Houston market that has changed most since 2021. A grid-tied solar system without storage does nothing for you when ERCOT goes down. With a battery, we can designate critical loads, a server room, refrigeration, security systems, HVAC for temperature-sensitive inventory, and keep them running through an outage. We install FranklinWH and Tesla Powerwall systems sized to your actual critical-load profile, not a generic percentage of your total usage. For a climate-controlled warehouse, that’s the difference between riding out a freeze and losing inventory.
What happens when you call
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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 Houston
We install and maintain equipment from Tesla, Enphase, SolarEdge, and FranklinWH, and we stock common replacement components locally so a failed microinverter or battery module doesn’t mean a two-week wait on a shipment from out of state. Houston’s climate is hard on electronics, and our maintenance techs know which Enphase microinverter generations hold up best in high-heat, high-humidity environments. We’ll give you a straight recommendation based on what survives here, not what the manufacturer’s marketing department prefers.
Common Commercial Solar Installation Problems We See in Houston
- Interconnection denial due to outdated electrical service: Older commercial buildings in the Heights and inner-loop ZIP codes often still run on 100-amp services. CenterPoint won’t approve an interconnection application until the service is upgraded to 200-amp, which adds cost and weeks to the timeline. We identify this during the initial site visit and include the upgrade in the first quote.
- Summer heat derating that wrecks payback projections: Houston’s latitude gives us roughly 5.3 peak sun hours per day, but panel operating temperatures above 140°F in July and August cut real-world output 15-25% below the STC number on the spec sheet. Any honest Houston payback model has to use local derate factors. Ours does.
- Wind-load failures on underengineered racking: Gulf Coast racking has to meet TWIA’s 130+ mph standards. We’ve seen systems installed by out-of-state firms whose racking wouldn’t pass a Harris County wind-load review. A failure up there isn’t just a repair bill. It can void your roof warranty and your insurance.
- Corrosion from the Gulf air: Salt and humidity accelerate corrosion on fasteners, rails, and junction boxes, especially for buildings within a few miles of the Ship Channel. We spec stainless hardware and corrosion-resistant coatings on every Houston job, and our maintenance plans include annual corrosion inspections.
Pricing for Commercial Solar Installation in Houston, TX
A typical commercial rooftop system in Houston runs $2.10-$2.80 per watt installed, so a 100 kW array lands between $210,000 and $280,000 before federal tax credits. Commercial battery storage adds $700-$1,000 per kWh of usable capacity, meaning a 60 kWh FranklinWH or Tesla system runs $42,000-$60,000. Carport installations cost more per watt than rooftop, typically $2.80-$3.50 per watt, because of the structural steel and deeper foundations. Ground-mount agricultural systems fall in the $1.90-$2.50 per watt range depending on site prep and trenching distance. Every quote we write is built off your actual utility bill and your building’s real usage pattern, not a brochure estimate. Call (877) 550-6892 for a free, no-pressure estimate. If a salesman needs an answer tonight, the answer is no. We’ll be here next week.
We Also Serve Cities Near Houston
Our Houston commercial solar team also covers the surrounding metro, including Bellaire, West University Place, Galena Park, and Jacinto City. If your building sits in one of these communities, you get the same crew, the same 90-Day Done Right Promise, and the same live-person phone support. Call (877) 550-6892 to schedule a site visit.
Serving Houston, TX - Our Local Coverage Area
We’re based in the Houston 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 - Commercial Solar Installation in Houston
In Houston’s ERCOT market, exported solar earns wholesale buyback rates of roughly $0.03-$0.05 per kWh while you pay $0.09-$0.15 per kWh for imported power, so the payback math favors self-consumption sizing over export-heavy systems. We size arrays to cover your daytime load, not to generate surplus for the grid, which typically produces a 6-9 year payback on Houston commercial systems versus the 4-5 year paybacks you see in net-metering states. Battery storage shifts more of your solar into evening hours, which improves the economics further. Call (877) 550-6892 for an exact quote tailored to your building’s interval data.
Only if you design for it from the start, and in Houston we consider that the default. A grid-tied solar array shuts down when ERCOT goes down unless you have battery storage and a critical-load subpanel installed. We designate your essential circuits, refrigeration, security, server equipment, climate control for temperature-sensitive inventory, and size the battery to carry those loads through a multi-day outage. Since Uri, this is the first conversation we have with every commercial client in Houston, and it’s why we recommend FranklinWH or Tesla storage on nearly every system we quote here.
Many do. Older commercial buildings in the Heights and surrounding inner-loop neighborhoods still run on 100-amp services, and CenterPoint Energy won’t approve a solar interconnection application until the service is upgraded to at least 200-amp. That upgrade typically costs $3,000-$8,000 depending on trenching and panel location, and it adds 4-8 weeks to the project timeline. We check your service size during the first site visit and include the upgrade in the initial quote so there are no surprises later. Call (877) 550-6892 and we’ll check your panels before you file anything.
Houston’s humid summer afternoons push panel operating temperatures past 140°F, and photovoltaic output drops as panels heat up, typically 15-25% below the STC-rated number when ambient temperatures exceed 95°F. The spec-sheet wattage assumes 77°F cell temperature, which almost never happens here between June and September. Any honest Houston solar proposal has to model local temperature derate factors before it calculates payback period, or the owner will be disappointed in year one. We quote the year-25 output, not the day-one brochure number.
We recommend an annual inspection for any commercial solar system within 10 miles of the Gulf or the Ship Channel, where salt air accelerates corrosion on fasteners, rails, and electrical connections. Systems further inland can usually go 18-24 months between inspections, but after any named storm with sustained winds over 70 mph, we recommend a structural review regardless of location. Our maintenance plans include thermal imaging of electrical connections and torque checks on all racking hardware, and Gus’s crew does the work. Call (877) 550-6892 to schedule an inspection.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Houston’s commercial solar needs since 2011.