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Sep 18 2026

The TPO Shift Is Here. The Winners Won't Be the Cheapest Bidder.

The math changed for residential solar in 2026, and every installer in this room already feels it. With the Section 25D federal tax credit gone for homeowner-owned systems, the 30% credit that used to make cash and loan deals pencil out is off the table for direct purchases by homeowners. Third-party ownership is now the most financially advantaged option, since TPO providers can still claim the Section 48E commercial credit and pass the savings through to the homeowner.

That's not a footnote. It's a structural shift in how residential solar gets sold, and it's already reshaping quote volume across the country.

Here's the problem: TPO is a commodity sale by default. When the homeowner isn't the system owner, and the entire value proposition is "lower monthly payment," every quote in the market starts competing on the same line item, the bill of materials. That's a race to the bottom on margin, and you know it.

There's another way to win, and installers in your market are already using it. Lead with production, longevity, and a solar brand homeowners recognize, and you stop being the cheapest option. You become an obvious one.

Start with the panel itself. REC Alpha's heterojunction cell technology (HJT) produces more energy in year 1, year 10, and year 25, backed by a warranty covering at least 92% of nameplate power at year 25. In a TPO sale, the "savings" pitch to the homeowner is really just production compounded over the life of the agreement. That gap doesn't shrink over 25 years. It grows.


 

Then look at the full job, not just the panel. Installing a panel with a higher watt-class results in fewer panels, fewer microinverters, and fewer connection points that can fail. That's not just a faster install day; it's fewer callbacks and cleaner approvals down the line. You’ll also find that the labor and racking savings across the rest of the bill of materials often offset whatever premium shows up on the module line. Price the whole system, not just the panel, and the math looks very different than a line-by-line comparison suggests.



In a TPO deal, the system has to perform for a homeowner and satisfy a financier for the life of the agreement. That's a long-term bet for everyone who signs, and it's worth building a manufacturer with 30 years of engineering behind every panel.

The installers pulling ahead in this new TPO landscape aren't discounting harder. They're changing the conversation, from lowest price to lowest total cost of ownership and long-term trust.

Ask your REC account manager to run the full numbers with you on your next TPO quote. If you don't know who your account manager is, please e-mail dimarco.barea@recgroup.com.