Solar Lease Buyout Calculator
Determine whether buying out your solar lease is worth it. Compare the buyout price against remaining lease payments and the value of full ownership to find your net financial benefit.
About This Calculator
The Solar Lease Buyout Calculator helps you decide whether purchasing your leased solar system mid-contract is a smart financial move. This situation arises most often when homeowners are selling their house (buyers are often reluctant to assume a solar lease) or when they want to claim ownership benefits — including any remaining warranty coverage, freedom from escalating lease payments, and the ability to claim any available incentives on a new battery addition. The calculation compares the buyout price (typically fair market value) against the value you gain by owning versus continuing to pay lease fees.
The fair market value of a used solar system is typically 40–60% of the original installation cost, declining with system age. A system originally worth $20,000 installed might have a fair market value of $10,000–$12,000 at age 8, dropping to $6,000–$8,000 at age 12. Lease companies often set their buyout prices using a fixed schedule in the contract — check your lease agreement for "purchase option" language, which specifies the buyout price at each contract year. Compare that number to this calculator's assessment of whether the buyout makes financial sense.
Annual savings from ownership represents the electricity savings your system generates minus any ongoing ownership costs (maintenance, monitoring fees). If you are currently paying $120/month in lease payments but the system saves you $150/month in electricity — a net of $30/month — then buying out shifts that $150/month savings entirely to your benefit at the cost of the buyout price. The break-even on the buyout is roughly FMV / ($150/mo × 12) = buyout price / annual savings.
Lease buyouts also matter significantly during home sales. Many buyers are reluctant to assume a solar lease, and some lenders complicate mortgage approvals when leased solar equipment is involved. Buying out the lease before listing your home simplifies the transaction and allows you to market the home as having owned solar panels — a feature that adds demonstrable value in most markets. This calculator helps you assess whether the pre-sale buyout cost is justified by the simplified transaction and potential home value increase.
Calculations based on NREL solar modeling data and industry-standard assumptions, built and maintained by the independent SolarToolsOnline research team.
Estimates only — not financial, tax, or legal advice. Verify important results with a licensed solar installer or financial professional before making decisions.
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