Solar Lease vs Buy: Comparing Ownership, PPA & Loan Options

Solar Financing Options Overview

There are four main ways to go solar, each with different financial profiles. Understanding the trade-offs is critical because the financing choice affects your total savings, tax credit eligibility, maintenance responsibility, and what happens when you sell your home.

• Cash purchase: You pay the full system cost upfront and own it outright. Highest long-term savings, full tax credit eligibility.
• Solar loan: You finance the purchase with a loan (typically 10-25 years, 4-8% APR). You own the system from day one and claim the tax credit.
• Solar lease: A solar company owns the system on your roof. You pay a fixed monthly fee (typically $50-$150) for 20-25 years.
• Power Purchase Agreement (PPA): Similar to a lease, but you pay per kWh produced rather than a flat monthly fee.

As of 2026, approximately 60% of residential solar installations are financed with loans, 25% are purchased with cash, and 15% use leases or PPAs. Calculate your specific scenarios with our Solar Savings Calculator.

Cash Purchase: Maximum Savings

A cash purchase delivers the highest total savings because you avoid interest charges, claim the full 30% federal tax credit, and benefit from increased property value. For a typical 8 kW system costing $22,000, the net cost after the ITC is $15,400. With annual electricity savings of $1,650-$2,400 (depending on your rates and usage), the system pays for itself in 6-9 years and generates $40,000-$60,000 in total savings over 25 years.

The main downside is the significant upfront capital requirement. However, the return on investment (8-15% annually) exceeds most other safe investments. If you have the cash available, buying outright is almost always the best financial decision.

Solar Loans: Own Without Cash Upfront

Solar loans let you own the system from day one without a large upfront payment. You claim the 30% tax credit (which you can use to pay down the loan principal), and you benefit from property value increases. Monthly loan payments are often lower than your pre-solar electricity bill, providing net savings from month one.

Typical solar loan terms in 2026: 10-25 year terms, 4.5-8.5% APR (unsecured) or 3.5-6.5% APR (secured/HELOC), with $0 down in most cases. A $22,000 system on a 15-year loan at 5.5% APR has monthly payments of about $180. After applying the $6,600 ITC to the principal, payments drop to about $126/month. Compare loan options at Amortio's loan calculators.

Solar Lease: Zero Down, Fixed Payments

With a solar lease, a third-party company installs, owns, and maintains a solar system on your roof. You pay a fixed monthly lease payment (typically $50-$150) that is lower than your previous electricity bill, providing immediate savings of 10-30%. The lease company claims the tax credit and owns any SRECs.

Lease terms are typically 20-25 years with an annual escalator of 1-3% (meaning your payment increases each year). At the end of the lease, you can renew, have the system removed, or sometimes purchase it at fair market value. The main advantages are zero upfront cost, no maintenance responsibility, and production guarantees. The main drawbacks: lower total savings, no tax credit, annual escalators, and potential complications when selling your home.

Solar PPA: Pay Per Kilowatt-Hour

A Power Purchase Agreement (PPA) is similar to a lease but charges you per kWh of electricity the system produces rather than a flat monthly fee. PPA rates are typically set 10-30% below your utility rate — for example, $0.12/kWh when your utility charges $0.16/kWh. If the system produces 11,000 kWh/year at $0.12/kWh, your annual solar cost is $1,320 versus $1,760 from the utility — a savings of $440/year.

PPAs have an advantage over leases in that you only pay for actual production. If the system underperforms (due to equipment failure, unusual cloud cover, or degradation), your bill is lower. Most PPAs include a 1-3% annual rate escalator. PPAs are not available in all states — approximately 30 states currently allow them.

25-Year Cost Comparison

Here is a side-by-side comparison for a typical 8 kW system producing 11,000 kWh/year, with a $0.16/kWh electricity rate escalating at 3%/year:

*After 30% ITC. Loan assumes 15-year term at 5.5% APR with ITC applied to principal. Lease assumes $100/month with 2% annual escalator. PPA assumes $0.12/kWh with 2% annual escalator.

Impact on Home Value

Owned solar systems (cash or loan) consistently increase home value. Research from Lawrence Berkeley National Laboratory found that homes with solar sell for approximately $4 per watt more than comparable homes without solar. An 8 kW system adds roughly $15,000-$20,000 to your home's resale value.

Leased systems can complicate home sales. The buyer must either assume the lease (requiring credit qualification), or you must buy out the remaining lease balance before closing. Some real estate agents report that leased solar can slow or complicate transactions, though this varies by market.

Tax Credit Eligibility

The 30% federal Investment Tax Credit (ITC) is only available to system owners. This means cash purchases and solar loans qualify, while leases and PPAs do not — the leasing company claims the credit instead.

For a $22,000 system, the ITC is worth $6,600. This alone can be the deciding factor between owning and leasing. If you have sufficient federal tax liability ($6,600+ over 1-2 years), ownership is almost always the better financial choice. If you have low tax liability (retirees, low-income households), a lease or PPA may make more sense since you cannot fully utilize the credit. Use our Solar Panel Calculator to estimate your system size and cost.

Which Option Is Right for You?

Your ideal financing option depends on your financial situation and priorities:

• Choose cash purchase if: You have $15,000-$25,000 available, sufficient tax liability for the ITC, and want maximum long-term savings
• Choose a solar loan if: You want to own the system without cash upfront, have good credit, and can claim the tax credit
• Choose a lease if: You prefer zero upfront cost, zero maintenance, and predictable monthly payments — and you cannot claim the tax credit
• Choose a PPA if: You want zero upfront cost and prefer to pay only for actual production, and PPAs are available in your state

Frequently Asked Questions