The residential clean energy credit is gone: the Austin solar math for 2026

For fifteen years, the single biggest lever in a home-solar quote was a line on your federal tax return: the Residential Clean Energy Credit, worth 30% of the system cost. As of January 1, 2026, that lever is gone. If you are weighing solar for an Austin home this year, the math you were quoted in 2024 no longer applies — and the honest new math runs on Austin-specific programs, not a federal credit.

Here is what the credit was, what changed, and how an Austin solar decision actually pencils out in 2026.

What the Residential Clean Energy Credit was

Section 25D — the Residential Clean Energy Credit — let a homeowner subtract 30% of the cost of a qualifying clean-energy system directly from federal taxes owed. It covered:

• Solar photovoltaic panels and solar water heating
• Battery storage (typically 3 kWh and up)
• Geothermal heat pumps
• Small wind and residential fuel cells

On a $25,000 solar install, that was a $7,500 reduction in what you owed the IRS — often the difference between a decision that penciled out and one that did not. Under the Inflation Reduction Act it had been scheduled to run at 30% for years to come.

What changed for 2026

The One Big Beautiful Bill Act terminated Section 25D for systems placed in service after December 31, 2025. A 2026 residential solar, battery, or geothermal install does not qualify for the 30% federal credit. (The related 25C credit for heat pumps and weatherization ended on the same date — the broader picture is in our guide to the 2026 rebate reset.)

This matters most for the quotes still circulating. A solar proposal built around "and then you get 30% back" is describing a program that no longer exists for this tax year. Confirm your own situation with a tax professional, but do not let a stale credit assumption carry a 2026 decision.

The Austin solar math without the federal credit

The federal credit is gone; the Austin-specific value is not. Three local factors now do the work the credit used to:

1. The $2,500 Austin Energy rebate

Austin Energy offers a flat $2,500 solar rebate for residential customers as of 2026. It is applied as a credit to your electric bill — typically a few weeks after your system receives permission to operate — and it generally requires an Austin Energy-approved contractor and completion of the utility's solar education course. It is smaller than the old federal credit, but it is real, local, and near the point of purchase.

2. Value of Solar, not net metering

This is the Austin detail that surprises people. Austin Energy does not use traditional net metering. Instead it pays a Value of Solar (VoS) rate — reported at about 9.91¢ per kWh in 2026 — for the electricity your panels export to the grid, recalculated annually. Traditional net metering would credit exports at the full retail rate (around 12¢/kWh in Austin), so VoS pays meaningfully less per exported kWh than net metering would.

The practical takeaway: in Austin, the electricity your panels produce is worth more when you use it yourself than when you export it. That tilts the design toward matching production to your own usage — and makes battery storage and load timing more interesting here than in a full-retail net-metering market. Verify the current VoS rate before modeling savings, since it moves each year.

3. Rising utility rates change the payback

Austin Energy residential rates rose in 2026 (reported around 7.4%). Rising grid prices cut the other way from the lost credit: every kilowatt-hour your panels let you avoid buying is now worth more. A longer payback from losing the 30% credit is partly offset by a shorter payback from more expensive grid power.

So does solar still make sense in Austin?

It depends — and that is the honest answer, not a hedge. Removing a 30% credit lengthens payback; a strong local rebate, rising rates, and Austin's abundant sun shorten it. Whether the two balance for your roof comes down to system size, your actual usage pattern, roof orientation and shading, and whether you add storage.

Two things are clear:

• The 2024 payback math is obsolete. Any comparison you are working from that includes the 30% federal credit needs to be redone for 2026.
• Self-consumption is the lever now. With Value of Solar paying less than retail for exports, a system sized and timed to your own use — not one built to dump surplus to the grid — is where the Austin economics are strongest.

Do the cheap efficiency work first

Before sizing any solar system, shrink the load it has to cover. Air sealing, attic insulation, and duct sealing lower your usage — and therefore the size, cost, and payback of the panels — and they carry their own Austin Energy and state rebates that did not expire. Sizing solar to an efficient house beats sizing it to a leaky one every time.

Where Completa fits

Solar is one of the projects where the "savings" number is easy to inflate and hard to check — and now that the federal credit is gone, the assumptions matter more than ever. The defense is the same as always: understand the scope and see a real, itemized number before you compare proposals.

That is what Completa is for. You describe the work, and Completa produces an itemized starting estimate from what you enter — for Austin homes — before you talk price. A contractor reviews that scope and may confirm or adjust it before a work agreement is signed. When a solar rebate or a rising-rate assumption enters the math, you are applying it to a number you can actually see and question, not to a proposal built to sell you.

The credit is gone, but the discipline is not — see the scope and the real number before you commit.