With a loan, you own the panels from day one, even while making monthly payments. That ownership typically lets you claim eligible incentives, like the 30% federal credit, which can meaningfully lower your effective cost. Loans can be secured, unsecured, or through a home equity line, with different APRs, terms, and fees. Many homeowners reapply incentive savings to principal for faster payoff. The upside is long‑term bill control; the trade‑off is responsibility for maintenance, insurance, and choosing trustworthy equipment and installers.
A lease replaces part of your utility bill with a fixed or gently escalating payment to a third‑party owner. You don’t usually claim tax credits personally, but maintenance, monitoring, and performance obligations are typically bundled, which many families find reassuring. The key details include length, escalator percentage, production expectations, and options to buy the system later. Leases can be easier on upfront cash and credit profiles, while the company handles upkeep. Just be sure you understand price changes and what happens if you move before the agreement ends.
A PPA charges you for the electricity your roof produces, usually at a starting per‑kilowatt‑hour rate that aims to beat utility pricing. The provider owns, operates, and maintains the system, while you purchase energy as it is generated. Contracts often include an annual rate escalator and production estimates. Savings depend on your utility’s rates, time‑of‑use schedules, and the PPA price path. When structured well, PPAs align incentives: they must produce to get paid, and you pay less than grid power. Always compare real bill impacts, not promises.