Solar Panel Cost in Houston, Texas (2026)

Installed residential solar in Texas runs roughly $2.20 to $2.80 per watt before any incentives. In Houston that puts a typical 8 kW system somewhere between $17,600 and $22,400, and a 12 kW system between $26,400 and $33,600. Cash or financed, that is the number on the contract.

Now the part most Houston quotes skip: the price per watt is not what decides whether your deal is good. Houston is deregulated. CenterPoint owns the wires and bills you for them no matter what. But you pick your retail electric provider — and that choice, not the panel brand, decides what you get paid for the power your roof exports. Two Houston homeowners can buy the identical system at the identical price and get materially different value out of it, because one plan credits exports at the retail energy rate and another credits them at real-time wholesale, or caps credits at what you consumed.

Texas has no statewide net metering. Nobody is required to buy your exported solar. What exists in Houston is a voluntary "solar buyback" product sold by retail providers, and those products differ from each other in ways that can dominate your return.

Houston solar cost by system size (2026)

The three price columns are the Texas installed-cost band. The fourth is Houston-only: CenterPoint charges a pre-interconnection study fee under its own tariff schedule, and almost no Houston solar article mentions it exists.

CenterPoint's tariff prices that study four ways, on two yes/no questions — is your equipment pre-certified, and are you on a networked part of the grid rather than a plain radial feeder:

• $75 — pre-certified equipment, not on a network
• $272 — not pre-certified, not on a network
• $312 — pre-certified, on a network
• $525 — not pre-certified, on a network

"Network" here means a networked secondary or underground grid, the kind used in dense areas, rather than the radial feeder most suburban homes sit on.

Then, a few lines later in the same section, CenterPoint exempts pre-certified units up to 500 kW that "export not more than 15% of the total load on a single radial feeder and also contribute not more than 25% of the maximum potential short circuit current on a radial feeder." That exemption may well cover an ordinary rooftop system — but it turns on pre-certification plus two feeder-level facts about your address that you cannot look up, so it is not something to assume.

The honest read: the fee table and the exemption sit adjacent and partly in tension. Do not assume $0. Do not assume $525. Ask which applies at your address and get it in writing.

The same tariff also lists a Distributed Generation Meter Installation Charge (DC.18) billed "As Calculated" — no fixed price, no published cap. Ask what it will be at your address.

The bill solar shrinks but never erases: CenterPoint delivery

Your Houston bill has two halves. The energy half goes to the retail provider you picked. The delivery half goes to CenterPoint and is set by the PUCT — no retail provider can change what CenterPoint charges. How your provider passes it to you does vary: some Electricity Facts Labels itemize TDU charges as a separate pass-through, others bundle them into a single all-in rate. Check your EFL for which.

As of September 1, 2026, CenterPoint's residential delivery charge is $4.90 per month plus 6.4130 cents per kWh — the sum of the fifteen line items the Residential Service schedule makes applicable. CenterPoint does not publish it as one number anywhere.

The arithmetic at 1,500 kWh a month:

• 1,500 kWh × $0.064130 = $96.20
• plus the $4.90 fixed monthly charge = $101.10 per month
• × 12 = $1,213.14 per year (from the unrounded monthly figure)

Export credits reduce your energy charges. They do not erase delivery. Inflow from the grid and outflow to it are metered as separate channels — one buyback plan's credit formula is written explicitly against "out-flow kWh quantity of excess energy reported by the TDSP." So a system that covers 100% of your annual consumption still leaves a delivery bill, because delivery is charged on the kWh you import, not on your net position. Model your expected grid inflow, not your total consumption. Confirm how base fees and TDU charges are treated in your own EFL.

Why that jump happened, and why one annual number is misleading

The per-kWh delivery rate went from 4.9811 cents to 6.4130 cents on September 1 — a 1.4319 cent increase, about 28.7%. Nearly all of it came from one rider: Rider TCRF, the Transmission Cost Recovery Factor, which went from $0.016173 to $0.030812 per kWh. That is a 90.5% jump in a single line item, and it accounts for 1.4639 cents of the 1.4319-cent net move.

It was not distribution investment. Rider DCRF barely moved, from $0.004944 to $0.004934. If a sales deck tells you your delivery charge is climbing because CenterPoint is rebuilding the distribution grid, that is not what the tariff says happened this cycle.

The TCRF resets twice a year, in March and September, and this September's reset was a large one. That is two data points, not a pattern — I cannot tell you whether March 2027 comes back down, and neither can anyone selling you panels. That means any single annual TDU figure for Houston is structurally a bit wrong — quote only the September number and you overstate the year, quote only the March number and you understate it. I am not going to guess what the March 1, 2027 reset will be. It has not been filed.

The delivery components carry five different effective dates. There is no single "CenterPoint rate date." To find these charges on your own bill line by line, use the TDU audit walkthrough.

Two traps in reading the CenterPoint rate

First: the residential rate sheet shows a Municipal Account Franchise Credit of ($0.001767)/kWh. That credit applies to municipal accounts. It is not yours. Do not let anyone net it out of your delivery cost.

Second: CenterPoint's "Texas rates" page is the natural gas page, regulated by the Railroad Commission of Texas. Electric delivery is a separate page under PUCT jurisdiction. Writeups that cite the gas page for Houston electricity are quoting the wrong utility entirely.

A CenterPoint resiliency-plan settlement in the news would add roughly $1.40 per month per year to an average residential bill from 2026 through 2028, plus $0.60 per month in 2030 — but it is described as pending PUCT approval. A proposal, not a charge on your bill. Anyone putting it into a payback projection as settled is doing sales math.

The actual Houston variable: which retail plan you land on

This is the part that deserves more of your attention than the panel spec sheet. Houston buyback plans differ on three axes, and providers trade them against each other deliberately.

1. The credit rate

What you are paid per exported kWh. Sometimes it matches your energy charge rate, sometimes it is deliberately lower, sometimes it is not a fixed number at all.

2. Whether the credit is capped at your usage

This is the one that quietly kills oversized arrays. One Houston provider's retail-rate plan states it plainly: "For each billing period, the excess energy that you receive credit for is capped at your energy usage from the grid." Your credit equals your grid rate times the lesser of what you exported or what you pulled in. Everything above that earns nothing — and a mild April with the AC off is exactly when a big array exports most and consumes least.

3. What the rate is indexed to

At least one Houston plan pays real-time ERCOT wholesale, settled on 15-minute interval pricing for your load zone: "Your buyback rate is based on 15-minute interval market pricing, which may change throughout the day." That is not a number you can look up once, and midday spring pricing in ERCOT — precisely when your array peaks — can be very low.

All three axes show up in one provider's lineup. Green Mountain Energy sells three buyback plans: one pays a credit rate equal to the energy charge rate but caps credits at consumption; one is uncapped but pays, in their own words, a "lower rate than the energy charge rate"; one pays real-time wholesale, uncapped, credits carrying forward. The good rate is traded against the cap by design.

Reliant's buyback page advertises uncapped credits and publishes no rate, term or cap at all — the credit per kWh "is disclosed in your Electricity Facts Label." Take that instinct everywhere: the EFL is the only document that binds. The marketing page does not.

A limit worth stating: I could not pull a live Electricity Facts Label from a primary source while writing this, so I am not printing a buyback cents-per-kWh figure for any Houston plan. The rates floating around comparison blogs are undated and unsourced. Pull the current EFLs yourself, or send them to me and I will read them. For the mechanics, the buyback plan deep dive covers how these are structured statewide.

Two constraints before you size anything: buyback eligibility is generally limited to systems under 50 kW and requires an active interconnection agreement, so the provider will not enroll you until CenterPoint interconnection is done. And check the term: the plans I have seen run 12-month, 24-month or month-to-month, but that varies by provider, so read the EFL rather than assuming. You are attaching a 25-year asset to a plan that renews annually. Plan for it.

What you actually get in 2026 — and what you don't

The 30% federal Residential Clean Energy Credit (Section 25D) is gone for Houston cash and loan buyers. Public Law 119-21 terminated it for expenditures made after December 31, 2025, and the statute defines the timing by completion: "an expenditure with respect to an item shall be treated as made when the original installation of the item is completed."

Read that twice if you signed in late 2025. It does not turn on when you signed or paid. It turns on when the install was finished. A system contracted in 2025 and completed in 2026 gets nothing.

If a Houston quote you are holding still shows 30% off, the payback math on that page is wrong by roughly a third. That is not a small error — here is what to do when a quote shows the dead credit.

A lease or PPA is different. The provider owns the system and may claim a commercial credit that has nothing to do with your personal return. Whether any of that value reaches you depends entirely on contract language. It is not automatic, and "we pass the credit through" needs to appear in the agreement, not just the pitch.

What is real in Texas: Tax Code 11.27 exempts from property taxation the entire increase in appraised value arising from a solar device installed for on-site use, with no dollar cap in the statute. It is not automatic — you have to file the solar-powered energy device exemption application with your county appraisal district, HCAD for most of this market. Confirm the current form number and deadline with HCAD directly before you rely on the saving. Ask your appraisal district what the exemption is worth at your own tax rate rather than taking a rep's estimate. The Texas incentives breakdown has the filing details.

One thing I could not resolve: whether a CenterPoint residential solar rebate exists in 2026. One Houston installer markets one; other sources say flatly that CenterPoint pays nothing for residential PV. I found no CenterPoint primary page either way. If a quote credits you a "CenterPoint rebate," make them show the program document before you accept a price that depends on it.

Permits, code, wind and water in Houston

Houston has real permitting requirements for rooftop solar, contrary to a claim you will occasionally see. City guidance states that "at minimum, structural and electrical building permits are required for installation of any photovoltaic system," issued under the same project number — and the electrical permit must be purchased by a registered licensed electrician.

Here is the awkward part. Houston City Council adopted the 2021 I-Codes on October 25, 2023, effective January 2, 2024. But the Permit Center's own solar plan-review handout still instructs applicants against the 2012 IBC, 2012 IRC, 2012 IFC, 2015 IECC and 2017 NEC. Houston's published solar guidance is behind Houston's own adopted code. Not a reason to panic — a reason to ask your installer which code edition the plan examiner is applying to your submittal.

I also could not confirm which NEC edition Houston currently enforces, and it matters more than it sounds. NEC 690.12 rapid shutdown is what drives whether your system needs module-level electronics — optimizers or microinverters — and the requirements have tightened across recent code editions, so which edition your plan examiner applies affects both equipment and cost. The city's own solar handout still cites the 2017 NEC, which predates the 2021 I-Codes Houston adopted. Ask.

Wind design on the Gulf Coast

Houston is not in Florida's High Velocity Hurricane Zone and does not use the Florida Building Code — it is on the IRC/IBC. But coastal wind design absolutely governs how your array is attached to the roof.

And Houston has no single citywide wind number. The Houston amendments to the 2021 IRC require the ultimate design wind speed to be "determined by entering the physical address of the property" into the ASCE 7 wind speed tool, at Risk Category II, with a printout attached to the plans. Any article giving you a flat "Houston is X mph" is oversimplifying the requirement.

So I am not printing an mph figure on my own authority. Do something better: ask the installer for the ASCE 7 printout for your address and the attachment detail engineered to it. If they cannot produce it, that tells you how the array is getting mounted.

Flood elevation and where the equipment goes

Houston's post-Harvey Chapter 19 floodplain ordinance, effective September 1, 2018, requires new structures in both the 100-year and 500-year floodplain to be elevated to the 500-year flood elevation plus two feet — stricter than the FEMA minimum — and defines "utilities" to include electrical equipment.

A rooftop retrofit is not a new structure, so do not assume this applies to you. But your inverter, disconnect and any battery are ground-level electrical equipment, and Houston explicitly flags floodplain location as triggering additional review. I could not retrieve the exact subsection governing equipment siting, so treat this as a question for the Permit Center, not a settled answer.

Houston flags two other triggers for extra review: historic districts (the Heights, Norhill and others) and designated areas near an airport (Hobby, IAH). A standard quote will not have priced either.

Deed restrictions — the Houston-only step

Houston has no zoning. That does not mean no rules. Deed restrictions are the binding private land-use control here, and the city instructs applicants to verify them with the civic association or county real property records before applying for the permit. That step appears on no generic solar checklist.

On HOAs: Texas Property Code 202.010 bars an association from prohibiting a solar energy device. But "no HOA can stop you" is wrong. The exceptions are broad — an association may still restrict a device that extends beyond the roofline, does not conform to the roof slope, uses non-conforming frame, bracket or wiring colors, sits outside the roof or a fenced yard, voids a material warranty, or, critically, was installed without prior association approval through the established procedure. Skipping the approval step is the exception that bites people.

Two gaps I will name rather than paper over. I could not verify Houston's current residential solar permit fee — the city's own handout references an outdated fee schedule, so I will not quote a number. And I could not confirm whether a rooftop system in unincorporated Harris County needs a county permit at all, which matters because a large share of addresses people call "Houston" sit outside city limits. Confirm your jurisdiction before accepting anyone's permitting timeline.

Questions to ask before you sign in Houston

1. Which retail plan is this payback model built on, and can I see that EFL? Not the marketing page. The Electricity Facts Label, with its effective date.
2. Is the buyback credit capped at my monthly grid usage? If yes, model what happens in April and October when I export the most and consume the least.
3. Is the credit rate fixed, or indexed to ERCOT interval pricing? If it is indexed, the model in this proposal is an assumption, not a rate.
4. What is the plan term — 12 months, 24, month-to-month? And what happens to accrued credits at renewal or if I switch providers? I could not find a primary answer to that last part for any Houston provider. Get it in writing.
5. Does this proposal show a 30% federal credit anywhere? If it does, it is wrong for a 2026 cash or loan purchase, and I want the whole model rebuilt without it.
6. What CenterPoint delivery rate did you use? If they used 4.9811 cents, that is the pre-September tariff. The current rate is 6.4130 cents, effective for scheduled meter read dates on and after September 1, 2026 — so it lands on your bill at your next read date, not on the 1st. It resets again on March 1.
7. Does the pre-interconnection study fee apply at my address, and does the DC.18 meter installation charge apply? DC.18 is billed "As Calculated" with no published cap.
8. Who submits the interconnection application, and does the install start before CenterPoint approves it? The tariff requires the customer to submit the application and execute the agreement; Houston permit guidance requires CenterPoint approval before installation begins.
9. Show me the ASCE 7 wind speed printout for my address and the engineered attachment detail.
10. Am I in the floodplain, a historic district, or an airport-designated area — and is that priced in this quote or a change order later?
11. Have my deed restrictions been checked? Not my HOA rules. My deed restrictions.
12. If there is a "CenterPoint rebate" on this quote, where is the program document?

If you want the statewide picture behind all of this — the cost bands, the five TDU territories, why San Antonio and Austin homeowners cannot do any of this plan-shopping — start with the Texas solar cost guide.

The short version

In Houston the install price is the easy part. Two vendors quoting 10 kW at $2.40 and $2.65 a watt are $2,500 apart — real money, and worth negotiating. But a capped buyback plan on an array sized as if it were uncapped can cost you more than that, and unlike the price, you will not see it on the contract. Then there is CenterPoint's delivery charge, which solar shrinks but never eliminates: the $4.90/month customer-plus-metering charge ($58.80 a year) is unavoidable no matter how much you export, and the 6.4130 cents/kWh volumetric piece is billed on every kWh you still pull IN from the grid — which is most nights and most winter mornings. And none of it is as costly as a payback model still carrying an expired federal credit — there is no 30% residential credit on a 2026 cash or loan purchase.

Get the plan right, size the array to the plan, and then negotiate the price. That order.

Want a second set of eyes on your Houston quote?

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Send the proposal and, if you have them, your current EFL and a recent CenterPoint bill. Those three documents are usually enough to tell whether the deal works. Get a free solar quote review.