Post-25D Market Restructuring: Preparing for the Credit Sunset

The Credit Schedule

The Inflation Reduction Act extended and enhanced the 25D credit, setting it at 30% for systems placed in service from 2022 through 2032. The credit steps down to 26% for 2033, 22% for 2034, and expires for residential installations beginning in 2035.

Commercial installations under Section 48 have a different timeline with potential extensions. But for residential solar - the focus of most appointment-setting contractors - the 2035 sunset is real.

Why the Market Is Restructuring Now

Even with nine years remaining, the market is already adjusting. TPO providers model their returns over 20+ year asset lives; a credit sunset affects their economics. Equipment manufacturers invest in efficiency improvements that reduce $/watt. And contractors are building sales processes that work at lower credit levels.

The restructuring is gradual, not sudden. But decisions made today - about business models, finance partnerships, and market positioning - will determine who thrives through the transition.

TPO and the Credit Sunset

TPO providers capture the tax credit on behalf of homeowners. A 30% credit makes TPO economics attractive; a 0% credit changes the math significantly. Some TPO providers are already building models that work at lower credit levels; others are maximizing returns in the current environment.

For contractors, the question is which finance partners will still be competitive in 2033 and beyond. Single-provider dependency becomes riskier as the credit sunset approaches.

Efficiency and Cost Reduction

The solar industry has consistently reduced costs over decades. Panel efficiency improvements, installation process optimization, and balance-of-system cost reductions continue. If the industry can reduce costs faster than the credit steps down, the net economics for homeowners may remain stable.

This is not guaranteed - labor costs trend up, tariffs add complexity, and permitting remains a wild card. But the industry has a track record of cost reduction that provides reason for optimism.

Building for the Transition

Contractors who want to thrive through the credit sunset should build businesses that work at lower credit levels. This means efficient operations, competitive pricing, and value propositions that do not depend entirely on tax incentives.

It also means customer education. Homeowners who understand that solar economics work even with reduced credits are easier to close. Homeowners who expect 30% forever will be disappointed - or will delay until the last minute, creating market volatility.

Sources

The external data in this article draws on the sources below. Figures described in the text as estimates or industry triangulations are directional and are not attributed to a single dataset.

• IRS, "Residential Clean Energy Credit"
• SEIA, "Solar Investment Tax Credit"

FAQ