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 Commercial Solar Installation Across Greatwood
Commercial solar installation in Greatwood typically runs $2.35 to $3.10 per watt before incentives, which puts a 100 kW rooftop system between $235,000 and $310,000, though most businesses in the area install systems in the 25-75 kW range ($59,000-$220,000) depending on roof geometry and energy load. Most commercial projects in Greatwood take 6-10 weeks from signed agreement to energized system, with the HOA architectural review adding 2-4 weeks that neighboring unincorporated areas don’t face. If you’re weighing your options, call Gus at (877) 550-6892 and bring a bill from your current provider. He’ll give you the year-25 math, not the day-one brochure number.
Why Gus’s Solar Is Greatwood’s Preferred Commercial Solar Installation Company
We’ve been climbing onto Greatwood roofs since before most of the solar door-knockers set up shop in Texas. Gus Petrakis founded this company in 2011, and his name is on the building, the truck, and the invoice. When a Greatwood business owner calls, a live person answers. Not a voicemail, not a call center. That matters when you’re standing in a warehouse at 2 p.m. in July and your monitoring app shows a string failure.
Greatwood business owners tend to have been burned before. They’ve sat through a pitch where the “energy consultant” quoted one number on the phone and another at the kitchen table. Our approach is different: the price quoted is the price charged. Gus tells every client the same thing: take two weeks. Think about it. The price will be the same. If a salesman needs an answer tonight, the answer is no.
Our Commercial Solar Installation team runs on the L.O.C.A.L. code Gus set down from day one: Local roots, On time, Community first, Accountable, Loyal. That’s not a poster on the wall. It means we show up when we say we will, we answer the phone when you call, and we come back if something isn’t right. Every job carries the 90-Day Done Right Promise in writing. If it’s not done right, Gus makes it right. One call brings him back.
Our Commercial Solar Installation Services in Greatwood
Commercial Rooftop Solar
Rooftop solar in Greatwood starts with the roof itself. Most commercial buildings and large two-story brick homes here were built in phases between 1988 and 2005, sporting complex hip-and-valley rooflines with limited contiguous flat planes. That geometry shapes how many panels fit and where they can go. We map every plane, measure azimuth and pitch, and run production estimates against your actual utility data before quoting a single number.
For a recent two-story brick office on Brookstone Drive, we mapped azimuth readings across a tilted three-plane hip roof and rerouted the array from a street-facing southwest plane to an HOA-compliant northeast slope. Pairing REC Alpha Pure panels with SolarEdge optimizers recovered most of the lost production. Then we helped the owner switch to a solar-friendly retail electric provider to offset the derating hit. That’s the kind of work a template solar company never does.

Warehouse & Industrial Solar
Greatwood’s commercial warehouse spaces skew smaller than the mega-distribution centers you see in Houston’s industrial corridors. That actually helps: a 50-150 kW rooftop array on a single-pitch metal roof is faster to engineer and faster to install than a sprawling ground-mount. We handle the structural load review, the HOA-facing documentation where applicable, and the interconnection paperwork with CenterPoint Energy under ERCOT rules.
Flat and low-slope commercial roofs in Fort Bend County take a beating from Gulf Coast humidity. We inspect for ponding water, existing penetrations, and membranes that have been cooking under 140°F rooftop temperatures since the 1990s. If the roof needs work first, we say so before anyone signs anything.

Solar Carport Installation
Solar carports solve a specific Greatwood problem: when your building’s best solar exposure is on a street-facing roof plane the HOA won’t approve. A carport array in the parking lot is a separate structure, which changes the review calculus and often opens up the true south-facing orientation the roof couldn’t offer. We design carports to fit existing parking layouts, preserving drive aisles and clearances.
Carport projects in Greatwood typically run $3.10-$4.00 per watt because of the structural steel involved, but they generate more energy per panel than a compromised roof array, which closes the gap over time. If you’re fighting a roof-plane constraint, a carport is the conversation to have.

Commercial Battery Storage
Battery storage changes what your solar does for you in Greatwood. Without it, your panels export excess power to CenterPoint’s grid at whatever buyback rate your retail electric provider offers. Many default plans pay $0.03-$0.05 per kWh, which is near-wholesale. With a FranklinWH or Tesla Powerpack-style array, you store that power and use it during the late-afternoon and evening hours when commercial demand charges spike.
Texas’s deregulated ERCOT market means Greatwood businesses face real demand charges. A battery system paired with solar can shave those peaks. We’ve installed FranklinWH and Tesla battery systems for local businesses and walk every client through the actual math off their actual utility bill. I quote the year-25 output, not the day-one brochure number.

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.
Trusted Brands We Service in Greatwood
We work with the equipment that holds up in Greatwood’s climate: Enphase microinverters for shaded or complex rooflines, SolarEdge optimizers for module-level production recovery on HOA-constrained arrays, and FranklinWH for commercial battery storage. We don’t push one brand. We match the equipment to the roof, the load profile, and the buyback math. Most parts we need are stocked locally or arrive within days, so service calls and repairs don’t stall waiting on a freight shipment from California.
Common Commercial Solar Installation Problems We See in Greatwood Homes
- HOA rejection after design: An installer designs for the ideal south-facing plane, submits to the Greatwood Community Association, and gets denied because that plane faces the street. Texas Property Code §202.010 stops the HOA from banning solar outright, but it doesn’t stop them from restricting placement. We run the solar-access audit first, before any designs get drawn.
- Summer thermal derating: Greatwood’s rooftop temperatures routinely push past 140°F in summer. Using default temperature coefficients produces a production estimate that’s 10-15% higher than what the system actually delivers. We spec panels and inverters with temperature performance matched to Fort Bend County conditions, and we show you the derated numbers up front.
- Bad buyback math: A business installs solar, stays on a default retail plan paying $0.03/kWh for exported power, and wonders why the payback period doubled. The fix is switching to a solar-friendly REP that pays $0.10+ per kWh. We walk clients through that switch at activation. Most generic installers never mention it.
- Roof age surprises: A Greatwood building from the early 1990s shows up with original architectural shingles that are 30+ years old. Installing panels over a roof that needs replacement in five years is a bad deal. We assess the roof during the site visit and flag it before you spend a dollar on solar.
Pricing for Commercial Solar Installation in Greatwood, TX
A commercial rooftop system in Greatwood runs $2.35-$3.10 per watt installed. A 50 kW system lands between $117,500 and $155,000. Solar carports run higher, $3.10-$4.00 per watt, because of the structural steel. Commercial battery storage adds $800-$1,200 per kWh of capacity, with FranklinWH and Tesla systems in the 10-40 kWh range for most Greatwood businesses. The biggest cost variables are roof geometry (hip-and-valley layouts cost more than flat metal), electrical service upgrades if your panel can’t handle the load, and whether the HOA review forces a non-optimal plane that requires more panels to hit the same production. Gus gives you a written quote with every line item spelled out. The number you see is the number you pay. Call (877) 550-6892 for a free estimate and bring a bill. He’ll do the math off your real usage.
We Also Serve Cities Near Greatwood
Our crews serve Greatwood and the surrounding Fort Bend County communities including Rosenberg, Richmond, Sugar Land, and New Territory. If your business sits just outside Greatwood proper, call (877) 550-6892 and ask whether we cover your address. The answer is probably yes.
Serving Greatwood, TX - Our Local Coverage Area
We’re based in the Greatwood 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 Greatwood
The Greatwood Community Association commonly confines arrays to roof planes not visible from the street, which on many Greatwood buildings means an east- or north-facing slope rather than true south. Production drops roughly 15-25% compared to an ideal south-facing array, but that loss can be partly recovered with high-efficiency panels like REC Alpha Pure and module-level optimizers from SolarEdge or Enphase. We run a solar-access audit before design so the HOA conversation happens with real azimuth data in hand. Call (877) 550-6892 to schedule one, free of charge.
Yes. Greatwood’s summer rooftop temperatures routinely exceed 140°F, and every panel loses output as it heats up. The panel’s temperature coefficient determines how much: a panel rated at -0.34%/°C loses roughly 10-15% compared to its STC rating in peak Greatwood heat. The fix is selecting panels with lower temperature coefficients, ensuring good inverter ventilation or choosing microinverters that spread heat load across the array, and accounting for derating in your production estimate from the start. If your current installer didn’t mention derating, that’s a red flag.
No. Greatwood sits in CenterPoint Energy’s distribution territory under Texas’s deregulated ERCOT market, which has no mandated net metering rate. Your buyback value is set by whichever retail electric provider you choose, and default plans often pay near-wholesale at $0.03-$0.05 per kWh. The workaround is switching to a solar-friendly REP that pays $0.10+ per kWh, which we help you do at activation. That single switch can cut your payback period meaningfully. Call (877) 550-6892 and Gus will walk you through the current REP buyback landscape.
Absolutely. Many Greatwood commercial and large residential structures were built in the late 1980s through early 1990s, putting original roofs at 30-35 years old. Installing a 25-year solar array over a roof with 5 years left means paying twice for the same square footage. We inspect the roof during the site visit, check shingle condition, look for ponding, and tell you honestly if a roof replacement should come first. Better to know before you sign than after the array is live.
The honest answer is to ask for the year-25 output number, not the day-one rating. Most quality panels degrade 0.25-0.50% per year, meaning a panel rated at 400W in year one might produce 360-375W by year 25. In Greatwood, heat accelerates degradation on cheaper panels, so the brand and the degradation warranty matter. Gus quotes the year-25 output on every proposal, and if a panel underperforms its degradation curve, the 90-Day Done Right Promise and the manufacturer warranty come into play. Bring a bill, and we’ll show you the 25-year math in writing.
Ready to see real numbers for your Greatwood commercial property? Call Gus at (877) 550-6892 today. A live person picks up. The estimate is free, the quote is in writing, and the price will be the same two weeks from now. Take your time. We’re not going anywhere.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Greatwood and Fort Bend County since 2011.






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