HVAC Glossary

Solar PPA

Last updated: March 11, 2026

A Solar Power Purchase Agreement (PPA) is a long-term contract between a property owner and a solar developer where the developer installs, owns, and maintains solar panels on the property, and the owner agrees to purchase the generated electricity at a predetermined rate. PPAs typically span 20 to 25 years and require no upfront capital investment from the property owner.

Technical Details

Under a PPA, the solar developer assumes all ownership and maintenance responsibilities. The property owner purchases electricity at a fixed or escalating rate, usually 10 to 15 percent below current grid rates. The developer handles system monitoring, insurance, and equipment replacement throughout the contract term.

Financial Advantages

PPAs eliminate upfront installation costs and performance risk, making solar accessible to property owners without capital reserves. The developer retains tax credits and depreciation benefits, which are passed to customers through lower electricity rates. Monthly bills decrease immediately upon system activation, providing predictable long-term savings.

Practical Considerations

PPAs require good credit approval and roof assessment. The property owner cannot claim solar tax credits or depreciation benefits. If the property is sold, the PPA transfers to the new owner, which can affect marketability. This option suits risk-averse customers prioritizing immediate savings over long-term ownership benefits.

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