What it is
A solar power purchase agreement is a contract in which a company installs a solar system on your roof or land, typically owns it, and sells you the electricity it produces. Instead of buying the equipment, you agree to pay for the power the system generates.
The payment is usually based on the electricity produced, and the contract sets how that rate is figured and whether it can change over time. Rates and terms vary by home, location, utility and provider, and they should appear in a written quote and contract.
A PPA is different from a solar lease, where you typically pay to use the equipment rather than for the power produced. It is also different from paying cash or taking a loan, where you generally own the system. Each path shifts responsibility for upkeep, performance and ownership in different ways.
How it’s traditionally been approached
Many homeowners have approached solar by purchasing a system outright with cash, or by financing it with a loan. Ownership brings control over the equipment, along with responsibility for its care and for understanding how any tax or incentive rules apply to the owner.
Leases and power purchase agreements grew as options for people who preferred not to own the system or manage it themselves. In these arrangements the third-party owner often handles monitoring and maintenance, while the customer agrees to a long-term contract.
Neither approach is right for everyone. Households weigh upfront cash, comfort with long contracts, plans to stay in the home, roof condition, and how much they value owning their own power equipment.
How the right solar installer may help
The right solar installer or provider may help you compare a PPA side by side with cash, loan and lease options, using the same roof or ground-mount design so the comparison is fair. A good pro may explain what each option means for ownership, maintenance, and who is responsible if something goes wrong.
A visit generally includes looking at your roof or land, your electrical panel, shading, and your past usage. The installer may then prepare a written proposal. Licensed, insured professionals follow local codes, permits and utility interconnection rules, and you can ask to see their credentials.
Useful questions include: Who owns the system and who maintains it? How is the per-unit rate set, and can it rise? What happens if I sell my home or need roof work? Is there a buyout option? What are the term length and cancellation terms? Do I need to confirm incentive and net metering rules with my utility? Ask for everything in writing and read the full contract.
The bigger picture
Choosing how to pay for solar is as much about peace of mind as numbers. Some people feel relief from a lower upfront commitment and having someone else handle upkeep. Others prefer owning their equipment and the sense of independence that comes with it. Neither feeling is wrong.
Long contracts can feel heavy if you are unsure about your future plans, so give yourself time to decide without pressure. If you want help finding trusted professionals across your wider household needs, Providers.plus may be a useful place to explore.
Keep in mind
- Incentives, tax credits, rebates and net metering rules have changed and keep changing, so confirm with the IRS or a tax professional, your state energy office and your utility before signing.
- Be cautious of high-pressure sales and door-to-door tactics, and never sign until you have read the entire contract, including rate changes, transfer terms and end-of-term options.
- Solar and battery work involves high-voltage electricity and roof work, so use licensed, insured professionals and never attempt DIY wiring.
- Grid-tied systems generally shut down during an outage unless designed with storage or backup, so ask what happens when the power goes out.
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Talk to a solar pro →Frequently asked questions
What is a solar power purchase agreement?
A solar power purchase agreement is a contract where a company installs and typically owns a solar system on your property and sells you the electricity it produces. You pay for the power rather than buying the equipment. Terms vary, so review the written contract carefully.
Is a solar PPA the same as a solar lease?
No, they are different, though they can look similar. With a PPA you generally pay for the electricity the system produces, while with a lease you typically pay to use the equipment. Ask any provider to explain exactly how the payment works in their contract.
Who owns the solar panels in a power purchase agreement?
In most PPAs, the company that installs the system owns it, at least during the contract term. The contract may include options to buy the system or have it removed at the end. Confirm these details in writing before you sign.
What happens to a solar PPA if I sell my home?
It depends on the contract. Some agreements can be transferred to a buyer, while others may require a buyout or other arrangements. Ask about this up front and talk with a real estate or legal professional if you plan to move.
Is a solar power purchase agreement better than buying solar panels?
Neither is better for everyone. A PPA may suit people who want less upfront commitment and less maintenance responsibility, while buying suits those who want ownership and control. Compare written quotes for each option and confirm incentive rules with a tax professional.
How do I find a solar installer who offers a power purchase agreement?
Start by comparing licensed, insured local installers and ask which financing options they offer or work with. Request written proposals and read every term. You can use Talk to a solar pro on our solar page at contacts.plus to take the next step.
Educational resource. 2A Solar shares general information and connects people with independent solar installers. It is not professional advice. Talk with a qualified professional about your own situation.