Where Credit Actually Kills a Deal
Credit can sink a TPO deal at four points, and each costs a different amount. At booking nobody asks, so an unfinanceable homeowner takes a calendar slot. At the visit the closer runs the application and hears no after the crew time is spent. At proposal review a closer look turns up what the first pass missed. After signature, the provider’s underwriting returns conditions the homeowner can’t meet. The later the failure, the more it costs.
The 2026 market makes the late failures worse. About two-thirds of installer salespeople expect TPO to exceed half of their volume, according to pv-magazine USA’s trends roundup, and SEIA’s summary of the One Big Beautiful Bill Act (OBBBA) confirms that third-party owners kept 48E access while 25D ended for owned systems. Before 2026, a household that failed one financing product could often pivot to cash or a loan and still claim the federal credit. That exit is closed now.
Sit Rate Versus Qualified Sit Rate
A sit rate counts appointments that happened. A qualified sit rate counts appointments that happened with an owner-occupant who can complete a financing application. The distance between the two is where junk hides. A setting operation can post a lovely show rate by confirming hard and booking anyone who agrees to a time, then hand closers a calendar full of homeowners who will never clear the credit screen.
Track both. When a closer closes out a visit, tag the outcome with a reason: no-show, credit, ownership, decision-maker absent, or roof and usage mismatch. Then cut the data by lead source and by setter. The credit share by source is the number that tells you which channel keeps selling you households the provider will decline.
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Book a Solar CallScreening for Credit Without Running Credit
A setter should never ask for a score or a Social Security number, and should never hint at an approval. The job is narrower. Confirm the home is owner-occupied, find out who is on the title, make sure every decision-maker will be at the table, and ask in plain language whether the household is comfortable completing a financing application with the provider during the visit. Willingness and presence are things a caller can learn honestly. Creditworthiness is the provider’s call, made with the homeowner’s consent.
Phrase it as logistics rather than judgment: “Part of the visit is a short financing review with the provider, so everyone on the deed should be there. Is anyone else on the title?” That line surfaces the co-owner who would have vetoed the deal at the kitchen table, and the owner who goes quiet at the word financing. Both are better learned on the phone. Have your counsel review the exact wording against your state and lender rules before it goes into a script.
Prequal Before the Visit: The Trade-Offs
Some installers run a soft prequalification before confirming the appointment, usually through a link the homeowner completes on a phone. It removes dead sits before a crew rolls. It also adds friction at the moment a homeowner is deciding whether to keep the appointment, so booked-to-sit conversion can drop, and some households that would have cleared the screen at the table abandon the link. A lower raw sit rate is the price.
Judge the method on a different scoreboard: signed contracts per booked appointment, and cost per signed contract. If prequal-first lowers sits but lifts the close rate enough to win on that measure, keep it. If it only moves failures from the kitchen table to the confirmation text, you bought nothing. A middle route works for plenty of teams: ask the readiness questions at booking, send the prequal link with the confirmation, and make the homeowner who ignores it your first call on the day-before check.
Fallback Paths, and Where the Fix Lives
When credit does fail, the visit isn’t automatically over. A co-applicant on the title can change the answer. A second provider may have a different credit box. Some households can pay cash or take a loan once they understand that, for a system installed in 2026, no federal homeowner credit comes with it. Others need a nurture track: a polite door left open, a note in the CRM, and a revisit when their situation changes. Closers should log which fallback worked, because that record writes the next script.
The upstream fix is cheaper than any fallback. VA Horizon’s solar appointment setting books against written criteria that put the right people in the room: the person on the appointment owns the home and is on the deed or mortgage, both decision-makers are present when the household needs both, and the household is open to hearing cash, loan, or lease options. Every appointment is exclusive and double-confirmed, with no-shows replaced, never billed.
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.
- Aurora Solar, 2026 TPO financing trends
- pv-magazine USA, "Experts predict the top trends in U.S. residential solar for 2026" (Dec 15, 2025)
- SEIA, clean energy provisions of the OBBBA