Solar panel cost in Texas (2026): why your plan decides payback

Ask two Houston homeowners with identical roofs what they’re paying for solar, and the installed price will be nearly the same — but what happens after the panels go up can differ sharply, because in Texas the value of the power you export is decided by an entirely separate market from the one that set your install price. Installed cost runs a fairly consistent $2.60 per watt statewide, putting a common 8 kW system at roughly $20,800 before rebates. What you get paid for the electricity you don’t use, though, depends entirely on which retail electricity provider (REP) you sign up with — Texas has no statewide net metering mandate, and that single fact does more to determine your payback than sun hours or system size.

The state has no solar mandate — your utility structure fills the gap

Most states either require utilities to buy back solar exports at a set rate or don’t regulate it at all. Texas sits in between, and unevenly. In deregulated territory — Houston, Dallas–Fort Worth, most of the state outside a handful of municipal and co-op pockets — a delivery utility like CenterPoint or Oncor moves the electrons, but you buy power from a competitive retail electricity provider, and it’s that REP’s specific plan that sets your solar buyback rate. Some REP plans credit exports near the retail rate, around 17¢/kWh; others pay a wholesale rate of 3–6¢/kWh; a few pay nothing at all. Municipal utilities like Austin Energy and CPS Energy set their own tariffs outside the REP system entirely, and co-ops like Pedernales Electric set theirs too. There is no single “Texas net metering rate” to plug into a spreadsheet — you have to call your specific provider and get the number in writing.

What you’ll actually pay: system cost by size

The statewide $2.60/watt average covers panels, inverter, racking, wiring, labor, and permitting. High-volume national installers can come in near $2.30/watt; smaller regional contractors, with different overhead and equipment preferences, sometimes run $3.00/watt or more. That gap is overhead and equipment choice, not necessarily a sign one bid is better than another — read past the per-watt headline before you compare.

Most Texas homes land on systems between 6 kW and 14 kW — divide your average monthly kWh usage (on your bill) by about 130 to estimate the system size in kilowatts that covers it.

System size	Gross estimated cost	Monthly output estimate*
6 kW	$15,600	~954 kWh
8 kW	$20,800	~1,272 kWh
10 kW	$26,000	~1,590 kWh
12 kW	$31,200	~1,908 kWh
14 kW	$36,400	~2,226 kWh

*Estimated at 5.3 peak sun hours/day × system size × 30 days. Real-world production runs 15–20% below this due to heat, wiring, and inverter losses.

Subtract any utility rebate you’ve confirmed in writing to reach your true out-of-pocket cost. There’s no federal credit to subtract this year — that expired at the end of 2025.

Sun and rate: the two numbers that don’t depend on your provider

Regardless of which REP or utility serves you, two statewide constants set the ceiling on what solar can save you. Texas averages 5.3 peak sun hours a day, ahead of most of the Midwest and Northeast, which means more kWh generated per installed watt. The average statewide retail electricity rate is 16.99 cents per kWh — and on a time-of-use plan with a steep peak window, solar’s effective value per kWh climbs higher still. Together, those two figures are why Texas ranks as a solid solar market even without a net metering mandate; a state with the same rate and weaker sun would look meaningfully worse.

What pushes an individual quote up or down

Equipment tier. Premium panels from Panasonic or REC carry stronger efficiency ratings and longer warranties. Mid-tier options from Q CELLS or Canadian Solar hit a practical sweet spot if your roof has adequate space. Limited or shaded roof area is where higher-efficiency panels earn their premium — more production per square foot.

Inverter type. String inverters are the cheapest option. Microinverters (Enphase) or DC optimizers (SolarEdge) handle partial shading and multiple roof orientations better, at an added $500–$2,000 or more.

Roof condition. A roof that’s deteriorating shouldn’t go under a 25-year panel warranty without repair first — most installers flag this at the site visit.

Battery storage. Runs roughly $10,000–$15,000 installed for a single unit. After Winter Storm Uri, plenty of Texas homeowners weigh backup power on criteria that go beyond the financial return.

Labor and permitting. Houston, Dallas, and Austin have mature permitting pipelines. Rural installs can mean longer timelines and travel charges from installers based in bigger metros.

The federal credit is gone; here’s what remains

IRC §25D, the 30% federal residential solar credit, expired December 31, 2025 under the One Big Beautiful Bill Act. Any system installed in 2026 gets $0 federal credit — if an installer’s site or proposal still lists 30%, it’s out of date. Confirm your specific situation with a CPA.

One exception: lease or PPA customers deal with a third-party owner who may still claim the commercial clean energy credit (§48E), available to businesses rather than homeowners. Some installers pass part of that through as a lower monthly payment or PPA rate. If you’re comparing buy versus lease, ask how §48E eligibility factors into the number they’re quoting you.

What Texas does still offer:

• 100% property-tax exemption on the value solar adds. A system that adds $20,000 to your home’s assessed value is fully exempt from the added property tax, for as long as you own it.
• Local utility rebates, where they exist. Austin Energy still runs a $2,500 residential rebate. CPS Energy’s residential rebate ended in 2022 and hasn’t returned. Some co-ops run occasional programs — call and ask before you assume one applies.
• No state income tax, which also means no state solar credit — but no state tax on the savings solar generates, either.

Full incentive detail is at Texas solar incentives & net metering.

Sizing a system around a Central Texas bill

Picture 1,400 kWh of average monthly usage in the San Antonio area and a 10 kW system at $2.60/watt.

Gross cost lands at $26,000. The federal credit contributes $0. CPS Energy — the local utility — ended its residential rebate in 2022, and its export credit sits near 2¢/kWh, so there’s no meaningful rebate to net out. Property tax impact on the added value: $0, thanks to the state exemption.

At 5.3 peak sun hours, a 10 kW system nameplate-produces about 1,590 kWh a month; after real-world losses, figure 1,270–1,350 kWh — close to covering the 1,400 kWh monthly load, with the remainder depending on what CPS Energy actually pays for the export gap. At 16.99¢/kWh, offsetting roughly 1,300 kWh monthly saves about $221 a month, or ~$2,650 a year. Against the $26,000 gross cost with no rebate applied, that’s a simple payback near 10 years. Texas rates have trended upward historically, which tends to shorten paybacks over time rather than lengthen them. Run your own numbers through the solar panel cost calculator rather than relying on this San Antonio scenario.

Why the same $2.60/watt buys a different outcome in every metro

Installed price per watt is nearly flat statewide — Houston, Dallas, San Antonio, and Austin all land within about 2% of each other, close to the $2.60/watt figure used throughout this guide. The variable that actually separates these markets is what each one pays for your exported solar.

Metro	Serving utility	How exports are credited	Local rebate (2026)
Houston	CenterPoint Energy (delivery) + competitive REPs	Depends on your retail plan — REP solar buyback plans range roughly 3–12¢/kWh	None municipal; shop REP buyback plans
Dallas–Fort Worth	Oncor (delivery) + competitive REPs	Depends on your retail plan / REP buyback	Oncor has run a solar-plus-battery incentive — verify current terms
San Antonio	CPS Energy (municipal)	Net billing — excess credited near ~2¢/kWh avoided cost	Residential rebate ended December 2022
Austin	Austin Energy (municipal)	Value of Solar bill credit, ~9.91¢/kWh	$2,500 residential rebate

Houston runs on CenterPoint delivery with REP choice layered on top — from Katy to Conroe, the structure is identical, and your REP’s buyback plan matters more than your suburb. One efficiency win: the City of Houston uses SolarAPP+ for automated permitting, so approval can land in days instead of weeks.

Dallas–Fort Worth mirrors Houston’s structure with Oncor as delivery utility and dozens of competing REPs — covering Arlington, Frisco, McKinney, and Richardson under the same rules. Compare buyback rates plan by plan, and verify the current status of any Oncor solar-plus-storage incentive directly, since program funding shifts without notice. Denton breaks the pattern: it runs its own municipal utility, Denton Municipal Electric, with no REP shopping and a flat 5¢/kWh export rate since January 2025 — well below retail, which makes right-sizing to your own usage the priority there.

San Antonio’s CPS Energy is municipal, so there’s no REP shopping, but the buyback is weak — exports beyond real-time use land near CPS’s ~2¢/kWh avoided-cost rate. That makes precise sizing more important here than almost anywhere else in Texas; oversizing for export doesn’t pay off. The residential rebate that ended in 2022 hasn’t come back.

Austin Energy is the strongest utility in the state for solar economics: a $2,500 residential rebate stacked with a Value of Solar tariff that credits production at about 9.91¢/kWh — high enough that even mild oversizing still pencils out.

Smaller markets keep the same $2.60/watt baseline but a different export story every time. Laredo sits in AEP Texas delivery territory with full REP choice — shop plans the way you would in Houston. Hill Country towns like Marble Falls, mostly served by Pedernales Electric Cooperative, get a value-of-solar credit around 7¢/kWh after PEC cut its Sustainable Power Credit to $0.0719/kWh effective March 1, 2026 — confirm the current figure, since co-op rates reset periodically and the REP-shopping approach doesn’t apply to a co-op. Full incentive detail by provider is at Texas solar incentives & net metering, and the broader worth-it case is at is solar worth it in Texas?.

Vetting a Texas installer

Request itemized written quotes — panel brand and model, system size, inverter type, projected annual kWh, and a line-by-line cost breakdown. A contractor who won’t put that in writing isn’t worth a second call.

Before you sign, ask: What production guarantee is in the contract? Who files the utility interconnection paperwork? What’s the workmanship warranty on roof penetrations? And — the Texas-specific question — how does my utility or REP credit solar exports, and did you size this system around that number?

Verify licensing through the Texas Department of Licensing and Regulation (TDLR), and treat NABCEP certification as a reasonable baseline for technical competency. For a deeper look at break-even scenarios using Texas-specific rate and sun data, see is solar worth it in Texas?