How solar financing partnerships work
- Installer partners with one or more lenders (Sunlight, GoodLeap, Mosaic, Sungage are common).
- At sales presentation, installer offers cash + financed pricing tiers. Homeowner chooses path.
- For financed deals, homeowner applies to the partner lender directly (often via online application with soft-pull pre-qual).
- Approval typically returns within minutes to 24 hours. Loan terms range from 10-25 years at varying interest rates.
- Lender funds the install — installer receives the full ticket minus a dealer fee.
- Homeowner repays via monthly loan payments. Homeowner owns the system + keeps the 30% federal ITC.
Common U.S. residential solar financing partners
- Sunlight Financial — widely-used solar lender, multiple loan products including no-payment first-18-month structures.
- GoodLeap — broad home-improvement lender with strong residential solar program; consumer-facing app for borrowers.
- Mosaic — solar + home-improvement lender, multiple term + rate options.
- Sungage Financial — solar-specialized lender with focused residential program.
- LightStream — broader unsecured personal loan path that some homeowners use for solar without going through solar-specific lender.
Why dealer fees matter for pricing
Each lender charges installers a "dealer fee" — a percentage of the gross install cost — for originating the loan. Typical dealer fees run 20-30% of gross install depending on loan term + rate + partner. Longer-term lower-rate loans carry higher fees (because the lender's break-even economics require more time to recover).
Installers bake the dealer fee into the per-watt rate for financed deals:
- Cash deal: $2.80-$3.40/W in most markets — installer keeps the full gross.
- Financed deal: $3.50-$5.00/W — dealer fee absorbed in the higher per-watt rate.
How financing pre-qual works on the customer portal
Solar Launch's customer portal can integrate financing pre-qualification widgets from solar lenders. Homeowners get a soft-pull pre-qual decision in seconds without affecting their credit score. They see their monthly payment number alongside the rendered roof, system size, and 25-year savings — before booking a site survey. Pre-qualified leads convert at meaningfully higher rates than non-pre-qualified leads.
Financing pre-qual on every customer portal.
Free account, free rendering, $1 per mailed solar quote.
Start free →