Texas Solar in 2026: TDU Charges, ERCOT Reliability & Is It Worth It?

Texas is a deceptively good solar state. The advertised energy rate looks low, so a lot of Texans assume solar does not pencil out. Then they actually read their bill — and find that the energy charge is only half the story. Here is the real 2026 picture.

## The hidden villain: TDU delivery charges

In Texas's deregulated market, your bill has two big parts: the energy you buy from your retail provider, and the **TDU (Transmission & Distribution Utility) delivery charges** from Oncor, CenterPoint, AEP, or TNMP. Those delivery charges are regulated, they keep rising, and **you pay them even when energy itself is cheap.**

Solar offsets the energy you would have bought *and* reduces your exposure to delivery charges on that usage. That is why Texans who only look at the headline energy rate underestimate how much solar saves.

## ERCOT reliability is its own reason

Texans have lived through grid emergencies — the 2021 winter blackouts, repeated summer conservation alerts, and ERCOT's ongoing reliability struggles. A solar-plus-battery system is not just a savings play here; it is **insurance against a grid that has proven it can fail when you need it most.** Backup power during a multi-day outage in a Texas summer or winter is the kind of thing you only wish you had after the fact.

## What changed federally in 2026

The **30% federal residential solar tax credit (Section 25D) expired December 31, 2025.** Texans buying a system with cash or a loan in 2026 no longer get a 30% personal credit. Because Texas has **no state income tax**, that federal credit was the only tax incentive in play — so its loss is clean to reason about, and the workaround is the same as everywhere: a **$0-down lease or PPA**, where the provider captures the commercial credit and passes the value back as a lower locked rate.

## Lock in your rate in a volatile market

Texas's deregulated market means retail rates can swing hard — great when you time it right, brutal when you don't. Solar replaces that volatility with a **predictable, largely fixed energy cost for 25+ years.** In a state where rate shock is a regular occurrence, that stability is worth a lot.

## Is solar worth it in Texas in 2026?

For most Texas homeowners with a **$130+ summer bill**, rising TDU charges, and a sun-exposed roof: **yes** — especially paired with a battery for ERCOT resilience. The combination of delivery-charge offset, rate stability, abundant Texas sun, and grid insurance makes the case, and a $0-down lease means you capture it without fronting cash or relying on an expired tax credit.

Wait if your bill is very small, you are moving soon, or heavy shade covers your roof.

## See your Texas numbers

[Get a free Solarfying quote](/get-quote) or [explore solar in Texas](/states/texas) and we will model your system against your actual TDU, retail rate, and usage — cash, loan, and $0-down lease side by side, with no expired credit in the math.

## Related reading - [Is solar still worth it in 2026 without the tax credit?](/blog/is-solar-worth-it-2026-without-tax-credit) - [How much does solar cost in 2026?](/blog/how-much-does-solar-cost-2026) - [Do you really need a solar battery in 2026?](/blog/do-you-need-a-solar-battery-2026)