Buying solar panels outright delivers the highest 25-year savings and the federal 30% tax credit, but requires $15,000-$25,000 upfront. Leases and PPAs eliminate upfront costs but sacrifice long-term savings and home value benefits. Your best option depends on your budget, tax situation, and how long you plan to stay in your home.
What Does It Mean to Buy Solar?
Purchasing a solar system means you own the panels, inverter, and all equipment outright. You can pay cash or finance through a solar loan. As the owner, you claim the 30% federal Investment Tax Credit (ITC), any state incentives, and net metering credits. The system typically pays for itself in 7-12 years, after which electricity is essentially free for the remaining 15+ years of the system's 25-30 year lifespan.
Ownership also increases your home's resale value. Studies from Lawrence Berkeley National Lab show that owned solar adds approximately $15,000-$20,000 to a home's sale price.
What Is a Solar Lease?
A solar lease is a rental agreement where a third-party company installs panels on your roof and you pay a fixed monthly fee (typically $50-$150/month) for 20-25 years. The leasing company owns the equipment, handles maintenance, and claims all tax credits and incentives. Your savings come from the difference between your lease payment and what you would have paid the utility company.
Solar leases typically include annual escalators of 1-3%, meaning your monthly payment increases each year. This can erode savings over time, especially if utility rates don't rise as fast as projected.
What Is a Solar PPA?
A Power Purchase Agreement (PPA) is similar to a lease, but instead of a fixed monthly payment, you pay a per-kilowatt-hour rate for the electricity your panels produce. The rate is typically 10-30% below your local utility rate. Like leases, the PPA provider owns the system and claims all incentives.
PPAs can be attractive because your payment directly correlates with energy production — in cloudy months you pay less, in sunny months you pay more (but still below utility rates).
Side-by-Side Comparison
| Feature | Buy / Own | Solar Lease | PPA |
|---|---|---|---|
| Upfront Cost | $15,000-$25,000 | $0 | $0 |
| Monthly Payment | $0 (after payback) | $50-$150/mo (fixed + escalator) | Per-kWh rate (10-30% below utility) |
| 25-Year Savings | $25,000-$50,000 | $5,000-$15,000 | $5,000-$15,000 |
| Federal Tax Credit (30%) | Yes — you claim it | No — company claims it | No — company claims it |
| System Ownership | You own it | Leasing company | PPA provider |
| Home Value Impact | +$15,000-$20,000 | None (may complicate sale) | None (may complicate sale) |
| Maintenance | Your responsibility | Company handles it | Company handles it |
| Best For | Homeowners with budget/tax liability | No upfront cost, predictable bill | Pay-per-use, no commitment risk |
Which Option Is Right for You?
Buy / Own Solar If...
- You have $15K+ cash or qualify for a solar loan
- You have federal tax liability to offset with the 30% ITC
- You plan to stay in your home 7+ years
- You want maximum long-term savings
- You want to increase your home's resale value
Solar Lease If...
- You want zero upfront cost and no maintenance
- You prefer predictable monthly payments
- You don't have enough tax liability for the ITC
- You're comfortable with 20-25 year contract terms
- You accept lower total savings for convenience
PPA If...
- You want zero upfront cost with pay-per-use pricing
- You prefer to pay only for electricity actually produced
- Your utility rates are high and rising
- You want immediate savings without system ownership
- PPAs are available in your state (not available everywhere)
Real-World Example
Buy (cash): $20,000 upfront minus $6,000 ITC = $14,000 net cost. Saves ~$2,400/year on electricity. Payback in ~6 years. 25-year net savings: ~$46,000.
Solar Lease: $0 upfront. $100/month with 2.9% annual escalator. 25-year total paid: ~$43,000. Saves ~$12,000 vs. utility bills over 25 years.
PPA: $0 upfront. $0.14/kWh (vs. utility $0.20/kWh). 25-year total paid: ~$38,000. Saves ~$17,000 vs. utility bills.
Frequently Asked Questions
Is it better to buy or lease solar panels?
Buying provides the highest long-term savings ($25,000-$50,000 over 25 years) because you own the system, claim the 30% federal tax credit, and benefit from increased home value. Leasing requires no upfront cost but saves significantly less.
What is a solar PPA?
A Power Purchase Agreement is a contract where a third party installs and owns solar panels on your roof. You pay a fixed per-kWh rate for the electricity produced, typically 10-30% below your utility rate. You don't own the panels or claim tax credits.
Can I claim the federal solar tax credit with a lease?
No. The 30% federal Investment Tax Credit is only available to the system owner. With a lease or PPA, the third-party company claims the credit. Only cash purchases or solar loans qualify you for the ITC.
Does solar increase home value?
Owned solar systems increase home value by an average of $15,000-$20,000. Leased systems do not increase home value and can complicate a sale because the lease transfers to the buyer.
How long does it take for solar panels to pay for themselves?
The payback period for purchased solar panels is typically 7-12 years, depending on your electricity rate, system size, and available incentives. After payback, the remaining 15-18 years produce essentially free electricity.