In San Antonio, Greenstar Power installed the most home systems (2,107 in 2021–2023). In Austin, Horus Partners pulled the most home solar permits (411 in 2023–2025). We rank the top companies in 2 cities, from San Antonio (19,844 systems) to Austin.
Our guide to the best solar companies in Texas compares the San Antonio and Austin rankings and explains how to vet an installer in Houston or Dallas, where no public records name installers.
Public records that name the installer cover only San Antonio and Austin in Texas so far, so we rank those cities rather than the whole state. Austin is ranked from the city's own building permits, which are published with the company that filed them.
Top 5 Solar Companies in San Antonio
Ranked by the home solar systems each company installed in San Antonio in 2021–2023, out of 139 companies that installed at least one.
| # | Company | Home installs | Local share | Contact |
|---|---|---|---|---|
| 1 | Greenstar Power | 2,107 | 11% | (512) 253-7100 Map & reviews |
| 2 | Freedom Solar Power | 1,804 | 9% | Map & reviews |
| 3 | TriSMART Solar | 1,722 | 9% | (888) 485-5551 Map & reviews |
| 4 | Pure Energy | 1,325 | 7% | (833) 937-7873 Map & reviews |
| 5 | ION Developer | 1,201 | 6% | Map & reviews |
Top 5 Solar Companies in Austin
Ranked by the home solar permits each company pulled in Austin in 2023–2025, out of 146 companies that pulled at least one.
| # | Company | Permits | Local share | Contact |
|---|---|---|---|---|
| 1 | Horus Partners | 411 | 17% | Map & reviews |
| 2 | Tesla Energy | 173 | 7% | (877) 373-7652 Map & reviews |
| 3 | Power Home Remodeling | 165 | 7% | (512) 961-4491 Map & reviews |
| 4 | Alba Energy | 142 | 6% | (800) 238-3112 Map & reviews |
| 5 | 512 Solar | 112 | 5% | (512) 827-3775 Map & reviews |
Solar installation & repair in Austin: the full top 10, with maps, contacts and closed installers →
Compare 2 Texas Cities
Home solar in each city we rank: how much was installed, how many companies did it, what owned systems cost and how many homeowners leased.
| City | Home systems | Companies | Median price | Leased / PPA | With battery | #1 company |
|---|---|---|---|---|---|---|
| San Antonio | 19,844 | 139 | — | — | 7% | Greenstar Power |
| Austin | 2,445 permits | 146 | — | — | — | Horus Partners |
Most cities count home systems in the latest three years of utility and state records; Austin counts city building permits instead, which don't include prices or leasing.
Comparing quotes in Texas?
Divide each quote's total, before incentives, by the system size in watts. Homeowners in Texas who bought their system paid a median of $3.83/W in 2021–2023; each city page shows the local median. Reject any 2026 quote that subtracts a 30% federal tax credit from a purchase: that credit ended in 2025.
How to check a solar quote →Home Solar in Texas by the Numbers
Based on 22,375 residential systems installed in Texas between 2021 and 2023, as reported to utilities and state agencies.
Most-installed panel brands
- Mission Solar Energy
- Qcells
- Silfab Solar
Most-installed inverter brands
- Enphase Energy
- SolarEdge
- SunPower
How these brands compare nationwide: share, price and leasing →
Solar Panel Repair in Texas
When a system stops producing, start with an established local company: the ones ranked in each city above did the most work there in the latest records and know the equipment on local roofs. Many will service a system they didn't install, but not all — ask before you book, and expect a diagnostic fee. If your system is leased or on a PPA, call the company you pay each month first: maintenance is normally its job.
53% of the home systems installed in Texas in 2021–2023 use Enphase Energy inverters, followed by SolarEdge (37%). Enphase systems use a microinverter under each panel, so one failure usually knocks out a single panel and the monitoring app shows which one. Systems with a central (string) inverter stop producing entirely when that inverter fails; a dark screen or an error code on the unit on your wall is the usual sign.
- Troubleshooting guide: the checks to do before calling anyone.
- Maintenance: cleaning, inspections and what actually needs doing.
- Damage and safety: storms, fire, roof leaks and when to shut the system off.
Installers in Texas That Closed or Went Bankrupt
At least 4,797 home systems in Texas were installed by these companies. Their panels and inverters are still covered by the manufacturers' warranties; the installer's workmanship warranty is likely gone. The city pages list the local companies still active that can take over service.
| Company | Systems in Texas | What happened |
|---|---|---|
| Freedom Forever | 1,997 | Filed for Chapter 11 in April 2026; converted to Chapter 7 liquidation in August 2026. pv magazine USA |
| ADT Solar | 1,226 | ADT exited the residential solar business in 2024. Solar Power World |
| Titan Solar | 794 | Ceased operations and filed for Chapter 7 in June 2024. PV Tech |
| Sunpro Solar | 407 | Became ADT Solar in 2020; ADT exited residential solar in 2024. Solar Power World |
| Vision Solar | 343 | Filed for Chapter 7 bankruptcy in December 2023. Patch |
| Infinity Energy | 30 | Ceased operations in 2023. Forme Solar |
What Your Warranty Still Covers If the Installer Is Gone
- Panels and inverters: covered by the manufacturer, not the installer. Find the brand on the inverter label or in your monitoring app and contact the manufacturer directly.
- Workmanship and roof leaks: usually a promise from the installer. If the installer is in bankruptcy, that warranty may be delayed or discharged; file a claim in the case if one is open.
- Leases and PPAs: the system belongs to the finance company, and most contracts make it responsible for maintenance even if the installer that sold it is gone. Call the company you pay each month and check your contract.
- Loans: keep paying. A closed installer does not cancel a solar loan.
How Many Homes in Texas Have Solar
Utilities in Texas reported 81,647 homes with rooftop solar in 2026, with 1,066 MW of panels between them, or 13.1 kW per home on average. That is 2,272 more homes than a year earlier (+3%). Texas ranks 16 of 44 states by the number of homes with solar. Home batteries paired with those systems add up to 15 MW.
Homeowners in Texas pay an average of 15.94¢ per kWh for electricity, against 17.45¢ nationally. At rates this low, a typical system takes 15 years or more to pay back without the federal credit, so compare quotes carefully and ask for a production estimate for your roof. What solar costs and how long it takes to pay back.
These figures count homes enrolled in net metering or a similar program that credits the power they send to the grid, as reported by utilities. Homes on other arrangements may be missing, and a change in how a utility reports can make the numbers jump. Source: U.S. Energy Information Administration, Form EIA-861M, net metering, July 2026.
Solar in Texas: Common Questions
Who installs the most solar panels in Texas?
In San Antonio, Greenstar Power leads with 2,107 systems. In Austin, Horus Partners leads with 411 permits. Volume shows experience, not workmanship, so compare quotes and reviews before choosing.
How much does a solar system cost in Texas?
Homeowners who bought their system outright paid a median of $3.83/W before incentives, and the typical system was 8.6 kW — about $33,000 in total.
Which Texas cities install the most solar?
Among the cities we rank, San Antonio (19,844 home systems), Austin (2,445 permits) lead. Each city page ranks the local companies and shows prices, leasing and the installers that closed there.
Can I still get the federal solar tax credit in 2026?
Not as a homeowner buying the system: the 30% residential credit (Section 25D) ended on December 31, 2025. Be wary of any quote that still subtracts it from the price. See our 2026 solar tax credit guide for what's left.
What if my solar installer went out of business?
Your panels and inverters are still covered by their manufacturers' warranties; what you lose is the installer's workmanship warranty and service. See the installers that closed in Texas and what your warranty still covers.
What do homeowners in Texas pay for electricity?
Residential customers in Texas pay an average of 15.94¢ per kWh, 9% below the national average. The higher the rate, the faster solar pays for itself. Source: EIA, Electric Power Monthly, Table 5.6.A.
Where These Numbers Come From
Source: Tracking the Sun, Lawrence Berkeley National Laboratory (2024 edition), licensed CC BY 4.0. In New York and New Jersey, recent years come from the state programs' own records (NYSERDA and New Jersey's Clean Energy Program). Company names were standardized and closures checked against news reports by Solar Power Fix. More about our methodology.