Solar Lease vs Buy 2026: What Changed This Year
The solar lease vs buy 2026 debate looks nothing like it did a year ago. On July 4, 2025, the One Big Beautiful Bill Act (P.L. 119-21) ended the 30 percent residential clean energy credit, known as Section 25D. Any homeowner installation completed after December 31, 2025 gets zero federal credit. The IRS was explicit: the completion date controls, not the contract or payment date. A system signed and paid for in November 2025 but finished in January 2026 gets nothing.
That single change rewrote the economics. Buying a system got roughly 30 percent more expensive overnight, stretching typical payback from 6 to 8 years out to 9 to 13 years. Meanwhile, third-party owned systems, meaning leases and power purchase agreements (PPAs), kept a path to federal value through the commercial credit, Section 48E. The company that owns your leased panels can still claim that credit if it meets strict construction deadlines, and competition forces much of that value into your monthly price. For the first time in decades, leasing is not just the easy option. In many cases it is now the cheaper one.
How Solar Leases and PPAs Work
A solar lease or power purchase agreement lets you use solar equipment owned by someone else. A company installs panels on your roof at no upfront cost to you. With a lease, you pay a fixed monthly amount for the equipment. With a PPA, you pay per kilowatt-hour (kWh) the system produces, usually at a rate 15 to 30 percent below your utility price. The company owns the panels, claims any available tax credits, keeps the SREC income in most states, and handles maintenance and monitoring for the 20 to 25 year contract term.
The lease escalator: read the fine print
Most leases include an annual price escalator, typically 2 to 3 percent. That means a $150 monthly payment becomes about $182 in year 10 at a 2 percent escalator. Compare that against your utility's own rate increases, which have averaged 2 to 4 percent nationally, before deciding the escalator is a bad deal. Some companies now offer zero-escalator leases at a slightly higher starting price. Ask for both quotes.
Buying Solar in 2026: The New Math
Buying means you own every electron and every incentive the system earns. You pay the full installed price, around $2.50 to $3.30 per watt nationally in 2026, or roughly $20,000 to $26,000 for a typical 8 kW system. There is no federal credit to subtract. What you do keep: 100 percent of state incentives, all SREC or performance payments for the life of the system, and the full increase in home value, which studies consistently tie to owned solar.
The math still works in the right states, it just takes longer. In a state with strong SRECs like New Jersey or Illinois, or a state tax credit like South Carolina or New Mexico, an 8 kW system can still pay back in 7 to 9 years and then generate free electricity for 15-plus more years. Where electricity rates are high, above 20 cents per kWh, the monthly savings alone often beat a loan payment from day one. Ownership also gives you something a lease never can: an asset. Owned systems appraise with the home and transfer cleanly at sale.
Leasing in 2026: Where the Federal Value Still Lives
Here is the twist that makes the solar lease vs buy 2026 comparison genuinely close. While homeowners who buy lost the 30 percent credit, the commercial clean electricity investment credit (Section 48E) survived for third-party owned systems, subject to hard deadlines: projects must begin construction by July 4, 2026, or be placed in service by December 31, 2027. Leasing companies that meet those deadlines claim the credit and, in competitive markets, pass most of it through as lower pricing. Industry reports from Arizona show prepaid leases pricing roughly 30 percent below equivalent cash purchases in 2026, which is the credit showing up in your quote.
That window is closing. Systems that begin construction after July 4, 2026 must be placed in service by the end of 2027 to earn anything. After that, the credit is gone for solar entirely. If you are considering a lease partly for the federal pass-through value, 2026 is the year the value is richest, and it shrinks from here.
Prepaid leases: the middle path
A prepaid lease lets you pay the full 20 to 25 years of lease payments upfront at a discount, often 25 to 35 percent less than the sum of monthly payments. You still do not own the system, but you lock in the federal pass-through value immediately and never face an escalator. For homeowners with cash who cannot use a tax credit, perhaps retirees with low tax liability, a prepaid lease in 2026 can beat buying on pure dollars.
Side-by-Side Comparison
| Factor | Buy (cash or loan) | Lease / PPA |
|---|---|---|
| Upfront cost | $20,000-$26,000 typical (8 kW) | $0 down typical |
| Federal credit 2026 | $0 (25D ended) | Owner may claim 48E, priced into your rate |
| State incentives | You keep 100% | Lessor usually keeps SRECs |
| Monthly cost | Loan payment or $0 if cash | Fixed lease or per-kWh PPA rate |
| Maintenance | Yours (warranties cover most) | Included by owner |
| Home sale | Adds value, transfers cleanly | Buyer must qualify and assume contract |
| 25-year savings | Highest (often $40k-$70k) | Moderate (often $10k-$25k) |
| Best for | Long-term owners with capital | Low upfront cost, fast savings |
Home Value and Selling: The Deciding Factor for Many
Real estate is where ownership pulls far ahead. Multiple studies, including long-running Lawrence Berkeley National Laboratory research, find buyers pay a premium for homes with owned solar, roughly $4 per watt in many markets. A paid-off 8 kW system can add $20,000-plus to appraised value. Leased systems are neutral at best: the buyer must credit-qualify with the leasing company and agree to assume 15-plus years of payments. Some buyers love the low bill. Others walk away. If you might move within 7 years, factor this in heavily.
Who Should Lease and Who Should Buy
Lease or PPA if you...
- Want zero upfront cost and savings starting on month one
- Have little or no federal tax liability to use against credits
- Prefer the company to handle all maintenance and monitoring
- Like predictable payments more than maximum lifetime savings
Buy if you...
- Have cash or strong credit and plan to stay 10-plus years
- Live in a state with SRECs, state tax credits, or rich rebates
- Want the system to build home equity
- Can use a home equity loan at a lower rate than solar loan offers
Either way, get at least three quotes, and make one of them a cash-purchase quote even if you plan to lease. You cannot judge a lease price without knowing what the system costs outright. Our solar quote red flags guide shows exactly what to watch for in the fine print.