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Solar Loan vs. Lease vs. PPA — Which Is Better in 2026?
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Solar Loan vs. Lease vs. PPA — Which Is Better in 2026?
Last updated: May 2026 · MySolarLoanCompanion.com/learn/
A solar loan delivers the highest 25-year savings if you qualify for state incentives and have good credit. A lease or PPA delivers immediate Day-1 savings with $0 down and passes through the 30% commercial Section 48E credit — now the only available federal solar incentive for 2026 buyers.
Head-to-Head Comparison — 2026
| Factor | Cash | Solar Loan | Lease | PPA |
|---|
| Upfront cost | Full system price | $0 down (typical) | $0 down | $0 down |
| Own the system? | Yes | Yes — after payoff | No | No |
| Federal ITC (2026) | None — Section 25D expired | None — Section 25D expired | Passed through by lessor | Passed through by provider |
| State incentives / SRECs | You keep them | You keep them | Provider keeps them | Provider keeps them |
| Home value increase | ~4% | ~4% | Minimal | Minimal |
| Maintenance | Your cost | Your cost | Provider's cost | Provider's cost |
| 25-year savings | Highest | Second-highest | Good | Good |
| Contract length | None | 5–25 year loan | 20–25 years | 20–25 years |
| Transferable at sale? | Yes | Pay off or assume | Yes — with approval | Yes — with approval |
Sources: NuWatt Energy financing comparison Feb 2026; Solar.com lease vs PPA guide Jan 2026; SurgePV financing guide March 2026; Jamar Power 2026
Key Details
- In 2026, the lease/PPA calculus shifted significantly — Before Dec 31, 2025, the Section 25D ITC gave loan buyers a 30% cost reduction unavailable to lease/PPA customers. With that credit gone, lease and PPA providers now pass through the commercial Section 48E credit through lower payments, narrowing the ownership advantage in states without strong state-level incentives.
- Loan is still better in states with strong incentives — New Jersey ($7,200 rebate on 8 kW), Rhode Island ($2,800), Connecticut ($2,000), Massachusetts (SMART program payments): owning via loan captures incentives that lease/PPA providers keep. The difference can be $5,000–$15,000 over the system life.
- Lease/PPA is often better in no-incentive states — In Texas, Maine, and New Hampshire, no meaningful state rebates exist. The Section 48E pass-through is the only available federal benefit. Lease/PPA wins on first-year economics in these markets.
- Net metering policy matters as much as price — Full retail net metering (most states): strongly favors loan/cash ownership. Avoided-cost net metering: shrinks ownership advantage. California NEM 3.0: battery storage plus ownership is the optimal structure.
- Lease and PPA carry escalator risk — Most PPA contracts include a 1%–3% annual rate escalator. If utility rates grow slower than the escalator, PPA becomes more expensive relative to grid power in later years. Model 25-year projections before signing.
- Home sale complexity differs — Solar loans must be paid off at closing or assumed by the buyer. Leases and PPAs are designed to transfer with home sale approval, but buyer creditworthiness matters to the provider.
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