Finance comparison guide
Buy vs Lease vs PPA Solar After the Federal Credit Change
Ownership structure changes what you can compare on a proposal. Start with gross installed price, then review contract terms — not just a net monthly payment after assumed incentives.
Updated 2026-07-03
Cash or loan purchase
You usually own the system, incentives may apply differently than third-party ownership, and gross $/W is the clearest comparison point. Loan quotes should show APR, dealer fees, prepayment rules, and whether the payment quote is gross or net after assumed credits.
Solar lease
You typically do not own the system. Monthly payments, escalators, maintenance responsibility, and buyout options matter more than a headline savings claim. Compare the lease payment against your pre-solar bill using the same usage assumptions.
Power purchase agreement (PPA)
You buy the electricity the system produces at a contract rate rather than buying the hardware outright. Review escalators, term length, transfer rules on home sale, and whether the PPA rate beats your utility rate after fixed charges.
Three-step quote comparison
- Run the solar calculator and save gross system size and cost assumptions.
- Ask each installer for the same design in cash, loan, lease, or PPA form with line-item pricing.
- Use the quote checker and financing checklist before signing.
SolarCalcNow provides planning estimates only. Results are not installer quotes, engineering designs, tax advice, financing recommendations, or utility interconnection approval.
FAQ
Common solar calculator questions
Which option is best after the 2026 federal credit change?
There is no universal best option. SolarCalcNow treats federal homeowner credit status conservatively in planning tools. Compare gross price, ownership, and contract terms before relying on net-savings marketing.
Can I compare lease and cash using the same calculator result?
Use gross-cost calculator output as the cash baseline, then ask for a separate lease or PPA proposal with escalators, term, and transfer rules spelled out. The financing quote checklist helps compare contract fields.
Is this legal or tax advice?
No. This is planning guidance only. Ownership, incentive eligibility, and contract interpretation should be reviewed with qualified professionals and official sources.
What to do next
Pair this guide with the full quote checklist and federal credit page before accepting a net-price sales pitch.