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Fast, Reliable Commercial Solar Installation Across Floresville
Commercial solar installation in Floresville, TX typically runs $2.10 to $2.85 per watt for a professionally engineered rooftop or ground-mount system, and most of the commercial jobs we quote here are sized between 25 kW and 150 kW. That puts a typical Floresville commercial array in the $55,000 to $320,000 range before any federal tax credit or USDA REAP grant money is applied. Gus’s Solar has been doing this work since 2011, and when a Floresville business calls (877) 550-6892, Gus Petrakis himself picks up the phone and talks through the real numbers off your actual utility bill. Not a sales script. Just straight answers.
Why Gus’s Solar Is Floresville’s Preferred Commercial Solar Installation Company
Floresville businesses work with Gus’s Solar because we show up when we say we will, and because Gus puts his name on every quote, every installation, and every follow-up call. We are not a door-knock crew that disappears after the paperwork clears. We are a locally owned shop founded in 2011, and Gus Petrakis publishes his name, address, and license number on everything we send you. The team that designs your system is the same crew that installs it: background-checked, uniformed, and employed directly by Gus, not subcontracted out to whoever is available that week.
Response time to Floresville matters when your irrigation pump controller is showing a fault on a Saturday morning in July. We coordinate scheduling from our San Antonio office and keep crews on the road to Floresville regularly, so a service call usually lands within 48 hours, often faster during the week. Our 90-Day Done Right Promise is in writing on every commercial solar job: if something is not right, Gus makes it right, and one call brings him back. That is the standard, and it applies whether you are off US-181 near the hospital district or out on a ranch road south of town.
Our Commercial Solar Installation Services in Floresville
Commercial Rooftop Solar
We install commercial rooftop solar on Floresville retail buildings, warehouses, and office spaces across the 78114 ZIP code. Most of the flat or low-slope commercial roofs here were built for the Eagle Ford Shale era or earlier, which means we check membrane condition and load capacity before we quote. A typical 40 kW rooftop array on a Floresville commercial building runs $88,000 to $112,000, and we handle the engineering, permitting, and GVEC interconnection paperwork start to finish.

Warehouse & Industrial Solar
Warehouse and industrial solar in Floresville usually means a large metal building with a ribbed-panel roof and a big daytime load: AC, compressors, welders, or cold storage. We stock standing-seam and ribbed-metal attachment hardware locally so we are not waiting on a parts shipment when your building is ready. A 100 kW industrial rooftop system in Floresville runs roughly $210,000 to $260,000 before incentives, and we design it to offset your actual daytime consumption rather than chase export credits that GVEC does not pay at a rate worth chasing.

Solar Carport Installation
Solar carports are a smart fit for Floresville businesses with open parking lots south of downtown or along Business Loop 181, where there is not enough rooftop square footage to match the load. Carport systems cost more per watt than rooftop, typically $2.60 to $3.20 per watt installed, because of the structural steel and concrete footings. The payoff comes from shading vehicles in the South Texas sun while generating power, and from using ground-level steel that is easy to service without ever getting on a roof.

Agricultural & Ground-Mount Solar
This is where Floresville is different from the suburban market 30 miles up US-181. Wilson County is peanut-farming and ranching country, and many commercial properties here have large open acreage with minimal shading, which is ideal for ground-mount solar. We design ballasted or driven-pier ground arrays sized to irrigation pumps, grain dryers, workshops, and livestock water systems. A 45 kW ground-mount array on a Floresville ranch, with racking and trenching included, typically runs $105,000 to $125,000. When the power runs a pivot or a barn full of equipment, we build for the actual load, not a brochure number.

Commercial Battery Storage
In GVEC co-op territory, battery storage is not an add-on. It is often the difference between a system that pays for itself and one that quietly loses money. Because GVEC pays minimal export credits compared to CPS Energy’s net metering structure in San Antonio, we size Floresville commercial battery systems to capture daytime solar production and discharge it during late-afternoon and evening peak hours when your meter would otherwise spin forward at full retail rate. We install FranklinWH and Tesla Powerpack systems, and a typical Floresville commercial battery bank adds $25,000 to $70,000 depending on capacity. For most businesses here, that is the best money spent in the whole project.
This page covers the commercial side. If you are also looking at residential work, our Commercial Solar Installation team handles the full scope from engineering to commissioning. And everything we do in Floresville rolls up under the same local standard we have held since 2011.

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 Floresville
Gus’s Solar works with the equipment that holds up under South Texas heat: Tesla, Enphase, SolarEdge, FranklinWH, and others. We choose the brand based on your building, your load profile, and your GVEC interconnection agreement, not based on what is sitting in a warehouse. For Floresville commercial systems, we frequently specify Enphase microinverters on shaded or multi-orientation rooftops and SolarEdge optimizers on long ground-mount rows. FranklinWH batteries pair cleanly with most grid-tied commercial setups when backup and self-consumption are the priority. We keep common parts staged so turnaround on a Floresville service call does not wait on a freight truck from California.
Common Commercial Solar Installation Problems We See in Floresville Homes
- Oversized grid-tied arrays with no battery backup. Business owners assume they can bank export credits the way a San Antonio CPS Energy customer would. Then the first true-up statement arrives and the excess summer production is credited at a fraction of the retail rate. We size systems for self-consumption from day one.
- Inverters mounted inside hot metal barns or cramped attic spaces. Floresville routinely hits 100°F-plus from June through September, and electronics derate fast above their rated temperature. We place inverters on shaded north walls or in ventilated enclosures, never inside a heat trap.
- Standard rooftop racking installed on ribbed-metal ag buildings. The wrong clamp on a corrugated panel leads to roof leaks, failed county inspections, and a system that sits dark for months. We choose the attachment method per building: standing-seam clamp, ribbed-metal foot, or ballasted rack, matched to the actual panel profile.
- No plan for the 8.2-year reality. A well-built Floresville commercial array should offset 85 to 95 percent of a typical operation’s daytime load and pay back in 7 to 10 years under GVEC’s export rules. When a system underperforms, it is usually because someone sized it off the day-one brochure number instead of the year-25 output. We quote the year-25 number.
Key Takeaways for Floresville Business Owners
- Commercial solar in Floresville is built around battery-backed self-consumption, not export credits, because of how GVEC structures its interconnection and buyback rates.
- Ground-mount arrays on your existing acreage are often a better value than rooftop when you have a metal barn or open field with no shading.
- Every Floresville commercial quote from Gus’s Solar is anchored in your actual utility bill and load data, and the price quoted is the price charged. No signature wanted tonight.
Pricing for Commercial Solar Installation in Floresville, TX
A typical commercial solar installation in Floresville runs $2.10 to $2.85 per watt installed, which puts a 50 kW array at $105,000 to $142,500 and a 100 kW array at $210,000 to $285,000 before incentives. Ground-mount systems run toward the upper end because of racking, trenching, and site work. Rooftop systems on metal commercial buildings run toward the lower end unless the roof needs structural upgrades first. Battery storage adds $25,000 to $70,000 depending on size and chemistry. Federal tax credits and USDA REAP grants can cut 30 to 50 percent off the net cost, and we will walk you through both. The best way to get an exact number is to call (877) 550-6892 and let Gus run the math off your actual bill. Bring me a bill, I will bring you the math. Free estimate, no trip charge inside our own county.
We Also Serve Cities Near Floresville
Our commercial solar work extends beyond Floresville into the surrounding region, including Floresville neighbors Pleasanton, Kirby, San Antonio, and Converse. If your operation sits outside the 78114 ZIP code but within a short drive of our usual routes, we can still get a crew out and handle the full scope from design through GVEC or CPS Energy interconnection.
Serving Floresville, TX - Our Local Coverage Area
We’re based in the Floresville 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 Floresville
GVEC’s interconnection rules have a direct effect on payback because the co-op buys back excess solar at avoided-cost rates, not the full retail rate that a CPS Energy customer in San Antonio receives. This means a Floresville commercial system pays for itself by offsetting daytime kilowatt-hours you would otherwise buy at retail, not by banking credits for later use. Most of our Floresville commercial designs are built around battery-backed self-consumption to capture every kilowatt-hour the array produces. Call (877) 550-6892 and we will model your actual GVEC bill so the payback number you see is the payback number you get.
Yes, and we do it regularly on the corrugated metal ag buildings that are everywhere across Wilson County. The key is choosing the right attachment method for your building’s panel profile: standing-seam roofs use non-penetrating clamps, while ribbed-metal roofs need plated fasteners with the correct sealant. On one ranch property off FM 536, we installed a 45 kW ground-mount array beside a 60×80 metal equipment barn, using a standing-seam clamp for the barn’s roof-mounted panels and a ballasted rack for the ground array, paired with two Tesla Powerpacks and SolarEdge inverters placed on the barn’s shaded north wall. The system offsets 92 percent of the operation’s annual irrigation and workshop load with a projected 8.2-year payback under GVEC’s export terms.
For a typical Floresville ranch operation with a workshop, well pumps, and a small irrigation system, you are usually looking at a 30 kW to 60 kW array. That handles a combined load of 45,000 to 85,000 kilowatt-hours per year, which matches what we see on ag properties across rural Wilson County. We will pull your actual 12-month usage from your utility history and size the system to that, not to a guess. Call (877) 550-6892 and bring the bill; the math is free.
Because Floresville’s summer heat and long sun hours push string inverters harder than the nameplate suggests, and because most commercial rooftops here have at least some partial shading from parapets, HVAC units, or neighboring buildings. Microinverters and power optimizers keep every panel running at its own best output even when part of the array is shaded or running hot. Enphase microinverters work well on multi-orientation roofs and SolarEdge optimizers handle long ground-mount rows cleanly.
Commercial solar panels degrade at roughly 0.25 to 0.5 percent per year, meaning a 100 kW system in Floresville will still produce around 90 kW at year 25. That is the number we design around. In GVEC territory, where export credits are minimal, a system that degrades faster than expected shows up as higher true-up bills and a longer payback. We quote the year-25 output, not the day-one brochure number, so your payback projection holds up over the life of the array.
Call Gus’s Solar for Commercial Solar Installation in Floresville, TX
If you own a business, ranch, or commercial building in Floresville and you are ready for straight answers on solar, call Gus Petrakis at (877) 550-6892. Live person answers, 24/7. Free estimate, no trip charge inside our own county, no signature wanted tonight. Take two weeks to think about it. The price will be the same.
Written by Gus Petrakis, Owner at Gus’s Solar, serving Floresville since 2011.






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