Why TPO Is Winning
High interest rates make solar loans expensive. A system that penciled at 5% interest looks very different at 8%. Meanwhile, TPO providers absorb the financing cost and recover it through the lease or PPA rate. For homeowners focused on monthly cash flow rather than long-term ownership equity, the TPO math often wins.
Reduced loan availability compounds the shift. Lenders tightened credit standards after losses in 2024-2025. Homeowners who would have qualified for loans two years ago now face denials or unattractive terms. TPO fills the gap for credit-challenged homeowners who still want solar. The no-upfront-cost structure removes the primary barrier to adoption.
Sales Conversation Changes
In a loan-dominated market, the pitch centers on ownership: "This is your system, you build equity, you get the tax credit." In a TPO market, the pitch centers on savings: "Your electric bill is $200; this locks you in at $150 with no upfront cost."
Objection handling shifts too. TPO customers worry about escalators, roof warranties, and what happens if they sell. Train your setters and closers on these specific objections.
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Book a Solar CallCredit and Qualification
TPO credit requirements differ from loan requirements. Some TPO providers approve homeowners that loan underwriters reject. Others have stricter criteria. Know your partners is credit boxes so you can qualify homeowners accurately before the appointment.
Utility bill requirements also matter. TPO economics depend on displacing expensive grid power. Homeowners with low bills or tiered rate structures may not pencil for TPO even if they want solar.
Finance Partner Relationships
In a TPO-dominant market, your finance partners become a competitive differentiator. Access to multiple providers with different credit boxes and rate structures lets you serve more homeowners. A single-provider dependency limits your addressable market.
Evaluate your finance stack. Are you competitive on rates and terms? Can you serve credit-challenged customers? Do you have backup options when primary partners tighten?
Installer Economics
TPO margins differ from loan margins. The finance provider captures value that would otherwise flow to the installer. Some contractors find TPO less profitable per install; others find the volume and close rate improvements offset margin compression.
Model your economics carefully. If TPO is 65%+ of the market, you cannot opt out without sacrificing most of your addressable volume. The question is how to make TPO work for your business.
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.