Buying a House With Solar Panels in Arizona: What to Check

Buying a house with solar panels in Arizona can lower your power bill or saddle you with someone else’s contract. The paperwork tells you which.

Before buying a house with solar panels in Arizona in 2026, find out who owns the system, what is still owed on it, and what electric rate comes with it. Owned panels usually transfer with the home. Leased, financed or power-purchase systems come with a contract you may have to qualify for, and your lender will count that payment.

• Owned, financed, leased and power-purchase systems transfer very differently.
• Lenders count most solar loan and lease payments in your debt-to-income ratio, following Fannie Mae’s rules.
• The rate a utility pays for exported solar power depends on when the system was connected and the plan it’s on.
• The federal solar tax credit for homeowners ended for systems installed after December 31, 2025.
• The Arizona REALTORS® Solar Addendum gives buyers a structured way to review and approve the solar paperwork.

Why this matters now

Several things changed for Arizona solar homes in the last 18 months. The federal Residential Clean Energy Credit ended for systems placed in service after 2025, according to the IRS. The Arizona Corporation Commission cut the export rate for new APS solar customers another 10%, to $0.05554 per kilowatt-hour starting September 1, 2026, as PV Tech reported. And two of the biggest residential solar companies, SunPower and Sunnova, went through bankruptcy, which moved many Arizona leases and service contracts to a new servicer.

None of that makes a solar home a bad buy. It does make the details more important than they were a few years ago.

Who owns the solar panels on the house?

This is the first question, because the answer decides everything else. There are four common setups:

• Owned outright: the seller paid cash or paid off the loan. The panels are part of the home and transfer with it.
• Financed with a solar loan: the seller still owes money, and the lender often records a UCC fixture filing against the property. Usually the loan is paid off at closing, though some can be assumed.
• Leased: a solar company owns the panels and the homeowner pays a monthly lease. The buyer usually has to apply, qualify and take over the lease.
• Power purchase agreement (PPA): the company owns the panels and the homeowner pays for the power they produce, often at a rate that rises every year.

Ask for the actual contract, not a summary. The listing description and the seller’s memory are not enough; a system described as “owned” can still have a loan and a recorded filing behind it.

How do solar loans and leases affect my mortgage?

They can affect both your approval and the home’s value. Under Fannie Mae’s Selling Guide, section B2-3-04, owned panels are treated like any other part of the home. Financed panels with a UCC fixture filing count toward your combined loan-to-value, the loan payment counts in your debt-to-income ratio, and a filing ahead of the mortgage must be subordinated. Leased or PPA panels add no value to the appraisal, and the lease payment counts as debt unless it is based only on the power produced.

In plain English: a $150-a-month solar lease can reduce how much house you qualify for, and it won’t add to the appraised value. Bring the solar documents to your lender early. FHA and VA loans have their own rules, so confirm with your loan officer.

What happens to the electric rate when the house sells?

It depends on the utility and the plan. With APS and other ACC-regulated utilities, the export rate a customer receives is generally locked for up to 10 years based on when the system’s interconnection was requested, as UniSource Energy Services explains for its customers. Older APS systems may be on legacy net-metering plans. SRP changed its solar pricing in November 2025 and moved new solar customers to different plans, with legacy solar plans set to end by November 2029, according to Vote Solar’s summary of SRP’s decision.

Whether a grandfathered rate follows the house to a new owner is not something to assume. Ask the seller for the utility account details and call APS or SRP before your inspection period ends, and get the answer in writing if you can. Do not switch the home’s rate plan after closing until you know what you would give up. The Arizona REALTORS® Solar Addendum includes the same warning.

What does the Arizona Solar Addendum do for a buyer?

It turns the solar paperwork into a timeline. Under the November 2025 version of the addendum, the seller delivers the solar documents within three days of contract acceptance, and the buyer can disapprove during the inspection period or within five days of receiving them. If the buyer is taking over a lease or loan, the solar company’s approval is due no later than three days before closing; if it isn’t granted, the buyer can cancel and keep the earnest money. The addendum also lets the parties assign transfer fees.

That structure matters because the solar company, not the seller, controls the transfer. In a May 2025 consent agreement with the Arizona Attorney General, Sunrun agreed to provide assignment forms and buyout prices within 30 days when a customer sells a home. Other companies have their own timelines, so start the request the week you go under contract.

What can go wrong after closing?

Two Arizona stories show the most common problems. In April 2025, ABC15 reported on a Surprise homeowner who sold his house in August 2024 and transferred the SunPower lease to the buyers, but kept receiving the lease bills for about five months. The servicer, SunStrong, eventually confirmed the account was paid and blamed a backlog after SunPower’s bankruptcy.

On the buyer’s side, AZFamily reported in November 2024 on a Sun City homeowner who took over a SunPower lease when she bought her home, then found the system wasn’t working while she kept paying about $150 a month with no repair scheduled. Since then, SunStrong Management has taken over servicing for legacy SunPower and Sunnova systems.

The lesson from both: confirm the system works, confirm who services it today, and confirm in writing that the transfer is complete.

What about the roof under the panels?

Have it inspected, and price the panels into any roof work. If the roof needs replacement in a few years, the panels have to come off and go back on, and national cost guides like HomeAdvisor’s put that in the hundreds of dollars per panel. A 2026 Arizona law, SB 1419, now requires new solar contracts to disclose those removal costs and makes installers liable for roof damage they cause, but it applies to new sales and leases, not to systems already on a home you’re buying. I covered the rest of your inspection period in What Inspections Should You Get When Buying an Arizona Home?

Does solar raise a home’s value or property taxes?

Owned solar can add value, and Arizona doesn’t tax it. A national Zillow analysis of 2018–2019 sales found homes with solar sold for about 4.1% more on average, though results vary by market and system. Under A.R.S. § 42-11054, on-site solar devices add no value to a property for Arizona property tax purposes. Leased or PPA panels belong to the solar company, so they don’t add to the appraisal. If the home is in an HOA, A.R.S. § 33-1816 bars associations from prohibiting solar, though they can set reasonable placement rules.

Your solar due-diligence checklist

Ask for these during the inspection period:

1. The purchase contract, loan, lease or PPA, with the current balance, payoff or buyout price.
2. A title report and county records check for any UCC fixture filing.
3. The lessor’s or lender’s transfer packet, credit requirements, fees and timeline.
4. Your lender’s written treatment of the solar payment in your debt-to-income ratio.
5. The utility’s interconnection date, current rate plan and export rate, confirmed with APS or SRP.
6. 12 to 24 months of electric bills and the system’s production data.
7. Panel, inverter and workmanship warranties, and the name of the company servicing the system today.
8. The roof’s age and condition, and a quote for removing and reinstalling the panels.
9. HOA approval for the system, if the home is in an HOA.
10. Permits and the installer’s license history with the Arizona Registrar of Contractors.

Frequently Asked Questions

Should I avoid buying a house with leased solar panels?

Not automatically. A lease can still save money if the monthly payment, any annual increase and the system’s production compare well with the utility bill you’d otherwise pay. The risks are qualifying for the transfer, a payment that counts against your loan approval, and service problems. Review the contract and twelve months of bills before you decide, and don’t let the closing date push you past the questions.

Can I ask the seller to pay off the solar lease?

Yes, you can ask. Many leases have a buyout price, and a seller who wants a clean sale may agree to pay it off, credit you toward it, or lower the price. Whether that makes sense depends on the buyout amount, the market and the rest of your offer. In today’s buyer’s market, sellers are more open to these negotiations than they were two years ago.

Do solar panels transfer automatically when I buy the house?

Owned panels transfer with the home like any other fixture. Leased, PPA or financed systems don’t transfer automatically: the solar company or lender has to approve the transfer, and you usually need to apply and meet credit requirements. The utility account and rate plan also need to move into your name. Start all three as soon as you’re under contract.

Can I still get the federal solar tax credit in 2026?

Not for a homeowner-owned system installed in 2026. The IRS says the Residential Clean Energy Credit doesn’t apply to expenditures for systems placed in service after December 31, 2025. Buyers of a home with an existing system never received the original owner’s credit anyway. If the seller’s solar loan assumed a tax-credit paydown, the Arizona Solar Addendum assigns that cost to the seller.

Thinking about a home with solar?

A solar home can be a good buy in Arizona, as long as you know exactly what comes with it. You can search available homes in Phoenix and filter for the ones that interest you, then bring the solar questions to me before you write the offer.

“One of them was a little dicey and he remained calm and friendly throughout the entire transaction.” — karen ulinski, client review

Last updated: November 6, 2026

Tim Tiller, MSW, is a REALTOR® and team leader with Southwest Horizon Real Estate Services at Keller Williams Arizona Realty, focused on North Phoenix, Phoenix relocation, and senior transitions. His social work background shapes how he helps families make major moves with clarity and dignity. Read client reviews.

If you’re considering a home with solar, send me the listing and I’ll help you gather the contract, the bills and the transfer requirements during your inspection period, so you know exactly what you’re taking on before you commit. I’m not an attorney, lender or solar technician, but I can help you ask the right people the right questions and keep the deadlines on track. Learn more about how I work with buyers, or call or email me.

Tim Tiller, MSW | REALTOR®
Southwest Horizon Real Estate Services
Keller Williams Arizona Realty
602-805-7787 · tim@swhres.com