PPA vs Solar Lease vs Buying: Complete 2026 Financing Guide

You want solar panels. Your roof is sunny, your electric bill is high, and the installation companies are knocking — with offers that sound almost identical: "No money down. Lower monthly payments. Immediate savings."

But here's the thing three words in the contract reveal everything: "owned," "leased," or "purchased under a PPA." That one word determines whether you're paying to own a money-making asset or renting a service that quietly gets more expensive over time.

After the 30% federal tax credit expired on December 31, 2025, the gap between buying and leasing/PPA has widened significantly — for better or worse, depending on which side of the deal you're on.

Let's break down all three pathways — the real costs, the actual savings, and which one is right for your situation. No sales pitch, just the numbers.

Quick pick: which is best for you?

Still unsure? Read on for the full breakdown.

What's the difference? Definitions made simple

Buying (Cash or Loan) — You Own the System

When you buy solar panels, you own the system outright (cash) or will own it once the loan is paid off (loan). You pay for the installation upfront or finance it over 10–20 years. Either way, you're the owner.

As the owner, you get:

• 100% of the electricity savings
• Any applicable state/local incentives (the federal credit expired for owner-occupied systems on Dec 31, 2025^[1])
• Increased home value (studies show 4–6% home value increase^[2])
• Full control over the system (panel brand, maintenance decisions)

Typical upfront cost: $20,000–$35,000 for a 10–14 kW system, depending on state and size.^[3]

Power Purchase Agreement (PPA) — You Buy the Electricity

With a PPA, a third-party company installs and owns the solar panels on your roof. You don't pay for the panels — instead, you sign a long-term contract (usually 20–25 years) to buy the electricity the system produces at a predetermined rate per kilowatt-hour.

As the PPA customer, you get:

• $0 upfront cost
• A per-kWh rate that's typically 10–20% below your utility's rate
• The third-party company handles maintenance and insurance
• The third-party claims the federal tax credit and depreciation (Section 48E)^[4]

But you get none of the system's equity, no home value increase, and your electricity rate may have annual escalators (usually 1.5–2.9%).

The market has shifted heavily toward PPA. EnergySage data shows that 51% of solar quotes in early 2026 were lease or PPA offers^[5]. It's now the dominant offering from large installers.

Solar Lease — You Rent the Equipment

A solar lease is structurally very similar to a PPA, but instead of paying per kWh produced, you pay a fixed monthly fee to "rent" the panels, regardless of how much electricity they generate.

As the lessee, you get:

• $0 upfront cost
• A predictable monthly payment
• Maintenance covered by the leasing company

But you get zero of the electricity savings directly (the leasing company keeps them), no incentives, no equity buildup, and like a PPA, the contract complicates selling your home.

Key difference between PPA and lease: With a PPA, your bill fluctuates with production (sunny months = lower bill). With a lease, your payment is fixed regardless of output — so if your panels underperform (shade, dirt, degradation), you're still paying the same amount.

The numbers: a 12 kW system over 25 years

Let's model a typical 12 kW system installed on a Texas home (16.39¢/kWh utility rate, 4.5 sun hours/day) and compare all three options over the full 25-year lifespan.

Assumptions: system produces ~6,210 kWh/year. Utility rate increases 3% annually. Loan at 6.5% for 20 years.

*The loan scenario above assumes a 6.5% rate. Solar loans at 3–4% (available with good credit and some installer promotions) narrow the gap significantly. See source^[6].

Key takeaway: Buying with cash wins on lifetime savings. But the real comparison isn't just lifetime — it's monthly cash flow and what matters to you right now. Some people would rather save $10,000 over 25 years than spend $30,000 upfront. That's fine. The question is whether you know the full trade-off.

PPA: Pros, cons, and the hidden costs

What's great about PPA

• No money down — installers cover everything; you just sign the contract
• No maintenance worries — if a panel breaks, the company fixes it. Period.
• Immediate bill reduction — most PPAs offer 10–20% lower per-kWh rates from day one
• No debt on your credit report — PPAs are service contracts, not loans (though they may appear as a liability in background checks during home sales)

What to watch out for

• Production escalators — many PPAs include annual rate increases of 1.5–2.9%. Over 25 years, this compounds significantly^[7]
• Selling your home gets complicated — the buyer must "assume" the PPA contract, which requires credit approval. This can slow down or derail a sale. About 5–10% of homes with PPA contracts face issues during the selling process^[8]
• You get nothing back — after 25 years, the panels go to the company, not you. No equity, no asset
• Performance risk — if panels underperform due to shading or degradation, the company absorbs the loss (this is a PPA advantage over lease), but your savings may be less than projected

Solar Lease: Pros, cons, and why it's usually the worst deal

What's great about lease

• No money down
• Predictable fixed payment — you know exactly what you'll pay each month
• Widely available — more companies offer leases than PPAs, and approval criteria are sometimes more flexible

What to watch out for

• Same escalator issue as PPA — lease payments typically increase 1.5–3% annually
• Worse value than PPA — with a lease, you pay the same amount whether your panels produce a lot or a little. A PPA at least ties payment to actual production^[9]
• Same home-sale complications as PPA
• No ownership path — unlike some PPAs that offer a buyout option at year 10–15, most leases are pure rental with no path to ownership

Honest assessment: If a company is offering you a lease when a PPA is also available, the PPA is almost always the better deal. Ask specifically which one they're proposing and why.

Buying: Pros, cons, and how to minimize the cost

What's great about buying

• Maximum lifetime savings — you capture 100% of the value the system produces
• Home value increases — Zillow and LBNL studies show solar increases home value by 4–6%, often more than the system cost in high-electricity states^[2]
• Freedom and control — you choose the equipment, the installer, and the timing. No third-party contracts to assume during a home sale
• Property tax exemption — most states (including Texas and Florida) exempt solar additions from property tax increases^[10]
• Sells itself when you move — a paid-off solar system is a selling point; a financed one transfers with the loan

What to watch out for

• High upfront cost — $20K–$35K is real money. Even with a loan, monthly payments add to your debt-to-income ratio
• Maintenance responsibility — panels rarely fail, but inverters typically need replacement once (year 10–15, ~$1,500–$3,000)^[11]
• The federal credit is gone for owner-occupied systems — the 30% credit expired Dec 31, 2025, under the OBBBA (Public Law 119-21)^[1]. This has narrowed the gap between buying and PPA significantly

How to decide: a practical framework

Here's how I'd approach this decision in 2026:

1. Run the numbers for your specific home. Use our solar savings calculator — it uses real EIA rates and NREL sun data. Plug in the PPA/lease quote you were given and compare it against the buy scenario.
2. How long will you stay? If less than 7 years, a PPA or lease might make sense. If 10+ years, buying almost always wins.
3. What's your credit score? If above 700, you can likely get a solar loan at 5–7%. Below 650, PPA/lease might be your only option — but shop around, as some companies are more flexible.
4. Do you have cash reserves? If paying $30K cash would drain your emergency fund, a solar loan is safer than draining savings. But don't finance at 10%+ if a lower-rate option exists.
5. Read the escalator clause. A PPA at 8¢/kWh with 3% annual increases costs more than one at 9¢/kWh with 0% increases over 25 years. Always model the escalator.

Hidden fees and fine print to watch for

Regardless of which path you choose, watch for these common charges:

Bottom line

In 2026, the decision between buying, PPA, and lease comes down to one question: do you want to build equity or save monthly?

• Buying builds equity. You own an asset that increases your home value and pays for itself. The upfront cost is the barrier, but a solar loan makes it accessible for most credit-worthy homeowners.
• PPA saves monthly. You pay less than the utility from day one, with zero upfront cost and no maintenance worries. But over 25 years, you pay more total, and the panels — and all their savings — belong to someone else.
• Lease is essentially a PPA with worse economics. It's widely available and easy to get, but the fixed payment regardless of production makes it the least efficient option for the homeowner.

Our recommendation: If you can afford it — through savings or a reasonable loan — buying is almost always the best financial decision. The 30% federal credit expiration narrowed the gap, but buying still wins over the long term for anyone planning to stay in their home 10+ years.

If you can't or don't want to buy, a PPA is the better alternative to a lease because your payment tracks actual production. Just read the escalator clause carefully.

Whatever you choose, get at least three quotes and compare them side by side. The difference between two companies' offers can be $10,000+ on a financed system or 2¢/kWh on a PPA — and that makes all the difference over 25 years.

Run your own numbers before deciding. Every home is different.