Solar BuyingUS · AU · UK
Solar Financing Explained: Buy, Loan, Lease or PPA?
How to pay for solar — cash, loans, leases and power purchase agreements — and which structure usually serves homeowners best.
WaterFuelAndSolarEnergy.com Editorial Team Updated January 2025 8 min read
You can pay cash, finance with a loan, or lease, or enter a power purchase agreement (PPA). Each shifts who owns the system and who captures the value — and that changes the economics.
How you can pay for solar
| Option | Ownership | You get |
|---|---|---|
| Cash | You | Full generation value, best long-term returns |
| Solar loan | You | Full value, spread out with interest |
| Lease | Leasing company | Power at set rate, no ownership |
| PPA | Provider | Buy power the system generates |
Cash or loan usually wins
If you can, buying outright or via a loan keeps the system’s value — and with typical paybacks of 5–12 years versus a 25-year asset, ownership is usually the best financial outcome. Leases/PPAs trade that away for low upfront cost.