Table of Contents
- Why Arizona Is the Solar Capital of the US
- Owned vs. Leased vs. PPA Solar — The Critical Distinction
- How Solar Lease Transfers Work in an AZ Home Sale
- How Solar Affects Appraised Value
- Solar and Mortgage Financing — What Lenders Require
- Arizona Solar Tax Benefits
- Federal Investment Tax Credit (ITC) — 30% Through 2032
- APS and SRP Net Metering — Critical Rules for AZ Homeowners
- Arizona Solar Access Rights (ARS §33-439)
- HOA Restrictions on Solar in Arizona
- Solar System Inspection Checklist
- Buying a Home With Solar — Step-by-Step Due Diligence
- Selling a Home With Solar — Maximizing Value
- Data Tables — AZ Solar at a Glance
- Frequently Asked Questions
Why Arizona Is the Solar Capital of the US
Arizona receives more sunlight than virtually any state in the continental US — approximately 299–330 sunny days per year in the Phoenix metro. This makes Arizona one of the highest-performing solar environments in the world. A 6-kilowatt solar system that might generate 7,000 kWh per year in New York can generate 9,000–10,000+ kWh per year in Phoenix. More production per panel installed means faster financial payback and more value per dollar of installation cost.
The result: Arizona has one of the highest rates of residential solar adoption in the US. As of 2026, an estimated 25–30% of new single-family homes in the Phoenix metro are built with solar panels, either included by the builder or installed shortly after purchase. Resale homes in many submarkets — particularly newer developments in Gilbert, Chandler, Surprise, Buckeye, and Laveen — commonly have solar systems of varying types.
For buyers and sellers in the Phoenix market, understanding solar is no longer optional — it is a standard component of real estate due diligence.
Arizona's Solar Electricity Economics (2026)
APS (Arizona Public Service) residential electricity rates: approximately 14–18 cents per kWh for basic residential plans; higher during peak summer hours under time-of-use pricing. SRP rates are similar. A typical 3BR Phoenix home uses 1,000–1,500 kWh/month in summer. Annual electricity bill without solar: $1,800–$3,600+/year. A properly sized owned solar system can offset 80–100% of this cost, with net metering providing bill credits for excess production.
Owned vs. Leased vs. PPA Solar — The Critical Distinction
This is the single most important thing to understand about solar panels in Arizona real estate. The ownership structure determines everything: tax benefits available, impact on home value, impact on financing, and how the system transfers at sale.
1. Owned Solar (Best for Sellers, Best for Value)
The homeowner purchased the solar system outright — either with cash or through a solar loan (where the loan is now paid off or carried by the homeowner). The panels, inverter, and all equipment belong entirely to the homeowner. At sale, the system transfers to the buyer as personal property that becomes part of the real estate.
Financial benefits of owned solar:
- Federal Investment Tax Credit (30%): On a $25,000 system, this is a $7,500 federal tax credit in the year of installation
- Arizona state income tax credit: 25% up to $1,000
- Arizona property tax exemption: Solar system not added to assessed value
- Arizona sales tax exemption: Solar equipment purchases exempt from TPT
- Full financial benefit of net metering credits
- System adds appraised value to the home
Drawbacks of owned solar:
- Higher upfront cost: $18,000–$35,000 for a typical residential system before incentives; $13,000–$28,000 after 30% federal ITC
- Homeowner responsible for maintenance and repairs
2. Solar Loan (Owned but Financed)
The homeowner owns the system but financed it with a solar loan — either a HELOC, personal loan, or solar-specific loan (UCC-1 fixture filing). This is still an "owned" system from an appraisal and value standpoint. However:
- If the solar loan has a UCC-1 fixture filing against the property, this shows up in a title search and must be satisfied at closing like any other lien
- Some solar loan programs (like Mosaic, Sunrun, Sunnova solar loans) file UCC-1 financing statements. The title company will flag this, and the seller must arrange payoff from closing proceeds
- Failure to disclose a solar loan with a fixture filing is a major issue — it can delay or kill a closing
3. Solar Lease (Third-Party Owned — TPO)
A solar lease is a contract where a solar company (SunPower, Sunrun, Tesla Energy, Sunnova, etc.) installs and owns the solar equipment on your property. You pay a fixed monthly lease payment — typically $80–$200/month — for the use of the system. The solar company retains ownership of the panels and equipment.
Key characteristics of solar leases:
- Term: Typically 20–25 years
- Annual escalator: Most leases increase payment 2–3% per year (can be significant over 20 years)
- No tax credits for lessee: The solar company (owner) takes the federal ITC, not you
- No added appraised value: Appraiser typically cannot add value for a system you don't own
- Monthly payment is a liability, not an asset
- At sale: Buyer must qualify to assume the lease (credit check), or seller must buy out the lease
- Buyout cost: Often $15,000–$40,000 depending on remaining term — get this number before listing
4. Power Purchase Agreement (PPA)
A PPA is similar to a lease but instead of paying a fixed monthly payment, you pay a per-kilowatt-hour rate for the electricity the system produces. Rate typically starts at 8–12 cents/kWh (below retail rates) but may escalate annually. Same ownership issues as a lease: company owns the panels, you don't get tax credits, no added appraised value, must transfer at sale.
How Solar Lease Transfers Work in an AZ Home Sale
When a home with a solar lease is sold, the lease does not disappear — it must be dealt with. There are three options:
Option 1: Buyer Assumes the Lease
The buyer agrees to take over the solar lease payments and responsibilities. Process:
- Seller discloses the lease details in SPDS and provides the full lease agreement to buyer during inspection period
- Buyer reviews lease terms (monthly payment, escalator, remaining term, buyout options, maintenance responsibilities)
- If buyer agrees to assume, the solar company must approve the transfer — this typically involves a credit check of the buyer
- Solar company sends a lease transfer packet with paperwork for both parties to sign
- Transfer is typically completed as part of the closing process
- Buyer now has the solar system but also the ongoing monthly payment obligation
Lender/mortgage considerations for lease assumptions: The monthly solar lease payment is counted as a monthly obligation in the buyer's debt-to-income ratio calculation. A $150/month solar lease payment reduces the buyer's available mortgage qualification by approximately $25,000–$35,000 in purchase price. Some buyers structure the contract to require the seller to "buy down" the solar payment or buy out the lease as a condition of sale.
Option 2: Seller Buys Out the Lease Before Closing
The seller contacts the solar company and obtains a buyout quote. If the seller pays the buyout (from closing proceeds or separate funds), the system becomes owned outright and transfers to the buyer as owned solar. This adds value to the home and eliminates the lease payment obligation for the buyer. Whether the cost of the buyout is "worth it" depends on: (a) the system's remaining useful life, (b) the buyout amount vs. appraised value the owned system adds, and (c) market conditions.
Option 3: Seller Relocates the System
In some cases, the solar company allows the seller to have the system removed from the property and reinstalled at the seller's new home. This is relatively uncommon and costly, but available with some solar companies. The seller keeps their lease (now on the new property) and the old home sells without solar. This eliminates the solar lease issue but also removes what may have been a selling feature.
Timeline Considerations
Solar lease transfers can take 3–6 weeks. In a standard 30-day Arizona closing, this timeline must be planned carefully. If the solar transfer is not completed before closing, escrow may need to be extended. Work with the title company and solar company immediately upon contract acceptance to begin the transfer process.
How Solar Affects Appraised Value
This is one of the most nuanced areas of solar real estate. The simple rule: owned solar systems add appraised value; leased/PPA systems generally do not. But the details matter enormously.
How Appraisers Value Owned Solar in Arizona
Appraisers can use several approaches to value an owned solar system:
Sales Comparison Approach
Appraiser finds recent comparable sales of homes with and without owned solar systems and adjusts for the difference. This is the most reliable method when sufficient comparable sales exist. In high-solar-adoption areas of the Phoenix metro (Gilbert, Chandler, East Mesa), this data is often available. In areas with less solar, appraisers may need to stretch the search radius.
Income Approach (Energy Production Value)
Appraiser calculates the present value of future energy cost savings. Example: A system produces $1,500/year in electricity savings; over 20 years at a 6% discount rate, the present value is approximately $17,000. This approach is more commonly used for commercial solar but is accepted for residential when comparable sales data is thin.
Cost Approach
Less commonly used. Appraiser estimates current replacement cost less depreciation. A 10-year-old $20,000 system might have depreciated 40%, giving a $12,000 contributory value. This approach tends to undervalue solar because it doesn't account for energy savings.
Typical Added Value for Owned Solar in Arizona
- Small system (4–5 kW): $10,000–$18,000 added appraised value
- Medium system (6–8 kW): $15,000–$25,000 added appraised value
- Large system (10+ kW): $20,000–$35,000+ added appraised value
- Battery backup included: Additional $5,000–$15,000 if comparable sales support it
These ranges reflect 2026 Phoenix market data. The added value tends to be less than the full installation cost — a $30,000 system might add $20,000–$25,000 in appraised value, with the gap reflecting depreciation, the cost approach methodology, and market variation.
Leased Solar and Appraisals
Under Fannie Mae guidelines (issued in 2014 and updated since), solar leases and PPAs are NOT considered personal property attachments that add to real estate value. The monthly lease payment is treated as a debt obligation (like a car payment) that affects debt-to-income ratios. Appraisers are instructed not to add value for leased solar systems in their comparative analysis unless there is specific market evidence that leased solar systems sell for more than equivalent homes without solar — which is rarely the case because buyers typically discount the value when they also inherit a monthly payment.
Solar and Mortgage Financing — What Lenders Require
Owned Solar — Clean Situation
If solar is owned outright (no loan, no lease), financing is straightforward. The system is part of the real estate. The appraisal will include solar value. No complications.
Solar Loan with UCC-1 — Title Issue
If the current owner has a solar loan with a UCC-1 fixture filing, the title search will reveal this lien. The UCC-1 must be satisfied (paid off) at closing. The lender will not close a transaction with an outstanding UCC-1 on the property. Make sure the seller budgets for this payoff from closing proceeds.
Solar Lease — Multiple Complications
For the buyer financing a home with a solar lease:
- Fannie Mae/Freddie Mac: Require the solar lease to be subordinated to the first mortgage. Most solar companies will sign a subordination agreement, but the process takes time. The buyer's lender will order this and it must be completed before closing.
- FHA: FHA will finance homes with solar leases if the lease is properly subordinated and the lease does not create a cloud on title.
- VA: VA will finance homes with solar leases under similar conditions.
- Monthly payment DTI impact: The solar lease payment counts as a monthly debt obligation for DTI calculation. A $150/month solar lease payment affects qualification for roughly $25,000–$35,000 in purchase price.
Seller-Financed Solar Payoff as Contract Condition
Buyers can negotiate in the contract that the seller pays off the solar lease as a condition of closing. This is called a "solar lease buyout concession." The seller uses closing proceeds to satisfy the lease, transferring a free-and-clear owned system to the buyer. For buyers who don't want to inherit a monthly solar payment, this is the cleanest solution — though the home's price may be higher to reflect the seller's buyout cost.
Arizona Solar Tax Benefits — State Level
Arizona State Income Tax Credit (ARS §43-1083.01)
Arizona offers a 25% state income tax credit on the cost of a solar energy system installed on a primary or secondary Arizona residence, up to a maximum credit of $1,000. This is a credit (not a deduction) — it directly reduces your AZ income tax bill dollar for dollar.
Example: System costs $25,000. Federal ITC (30%) = $7,500 credit. AZ state credit = $1,000 (25% of $4,000 in uncovered cost, effectively). Combined first-year incentives: $8,500 in tax credits.
The Arizona credit is claimed on the Arizona income tax return in the year the system is placed in service. It is non-refundable (cannot reduce your tax bill below zero) and can be carried forward for 5 years if not fully used.
Arizona Solar Equipment Property Tax Exemption
Arizona law provides a complete property tax exemption for solar energy devices under ARS §42-11054. When you install solar panels on your home, the added value of the solar system is not included in your property's assessed value for property tax purposes. This means:
- Your property taxes do NOT increase because you added solar
- The exemption is automatic — you don't need to apply separately
- Applies to solar photovoltaic (electricity) systems, solar thermal (water heating) systems, and battery storage systems associated with solar
Example: Before solar installation, your home is assessed at $50,000 (full cash value $500,000 × 10%). After installing a $25,000 solar system (which adds $18,000 to appraised value), your assessed value remains $50,000 for tax purposes — saving you approximately $180–$270/year in property taxes (depending on local tax rate).
Arizona Solar Equipment Sales Tax Exemption
Arizona's Transaction Privilege Tax (sales tax) does not apply to the purchase of solar energy equipment or the installation labor for residential solar. This exemption saves approximately 8–9% of the equipment cost, which is typically already factored into your contractor's pricing.
AZ Utility Rate Disconnect Rules (ARS §40-360)
Arizona's Corporation Commission regulates utility companies and has established rules protecting homeowners' rights to interconnect solar systems to the grid. Utilities (APS, SRP, Tucson Electric) must allow residential solar interconnection within specific timeframes. They cannot unreasonably deny interconnection or set interconnection fees that make solar economically unviable.
Federal Investment Tax Credit (ITC) — 30% Through 2032
The federal Investment Tax Credit is the most impactful solar incentive available to Arizona homeowners. Under the Inflation Reduction Act of 2022, the residential solar ITC was extended and increased to 30% of the total installed system cost through 2032, then steps down to 26% in 2033 and 22% in 2034 before expiring for residential (as currently scheduled).
What the ITC Covers
The 30% ITC applies to:
- Solar photovoltaic (PV) panels
- Inverters, wiring, and racking hardware
- Battery storage systems (added to IRA 2022, effective for systems installed after 2022)
- Installation labor costs
- Permit and inspection fees
- Sales tax on the equipment (even though AZ exempts it for residential solar, some equipment purchases may be taxable)
How to Claim the Federal ITC
The ITC is claimed on IRS Form 5695 (Residential Energy Credits), filed with your federal income tax return for the year the system is placed in service (not the year you signed the contract — the year the system is fully installed and operational). If your federal tax liability is less than the full credit amount, the unused credit can be carried forward to subsequent tax years indefinitely (under current law).
Who Can Claim the ITC
- Owned systems only: If you purchased the system outright or financed it with a solar loan, you claim the ITC
- Leased/PPA systems: The solar company (the owner) claims the ITC — not you. This is one of the major disadvantages of leasing.
- Primary and secondary residences qualify; rental properties have different (commercial) ITC rules
- Must owe federal income tax to claim the credit; if you don't owe taxes, carry forward until you do
ITC Math Example
You install a 7 kW solar system with battery backup in Phoenix:
- Solar system: $22,000
- Battery (13.5 kWh Tesla Powerwall): $10,000
- Total installation: $32,000
- Federal ITC (30%): $9,600 credit
- Arizona state credit: $1,000 credit
- Arizona property tax savings (~$250/year × 20 years): $5,000 present value
- Net cost after first-year incentives: $32,000 - $9,600 - $1,000 = $21,400
- Annual energy savings at $2,400/year: payback in approximately 9 years
- Expected system life: 25–30 years (panels typically warrantied for 25 years)
APS and SRP Net Metering — Critical Rules for AZ Homeowners
Net metering is the mechanism that makes solar financially viable: when your solar system produces more electricity than you're using, the excess is sent to the grid and you receive a credit on your utility bill. However, Arizona's net metering rules have become significantly less favorable since 2017, and the specific terms of your net metering agreement matter enormously for solar economics.
APS (Arizona Public Service) — Most of Maricopa County
APS serves the majority of Phoenix, Scottsdale, Chandler, Gilbert, Tempe, Peoria, and surrounding areas. APS's current net metering rules (as of 2026):
- Net Metering (Grandfathered plans pre-2017): Legacy customers on grandfathered net metering receive near-retail rate for excess power sent to grid. These plans provide the best economics but are not available to new customers.
- Current APS Solar Plans: New solar customers since 2017 are on time-of-use (TOU) plans with lower-than-retail compensation for excess solar production. APS uses an "Export" rate of approximately 7–9 cents/kWh for excess solar production — far below the retail rate of 14–18 cents/kWh. This "net billing" structure reduces the economic benefit compared to true net metering.
- TOU Rate Impact: Under TOU plans, peak hours (when electricity is most expensive) are typically in the late afternoon/evening — which is after peak solar production. This means solar production is highest when grid credits are lowest.
SRP (Salt River Project) — East Valley Areas
SRP serves much of Mesa, Gilbert, Chandler (portions), Tempe, and some Scottsdale areas. SRP's solar program:
- SRP eliminated traditional net metering in 2015 for new solar customers
- SRP's "Customer Generation" plan: Fixed $50–$100/month demand charge for solar customers + credits for exported power at wholesale rates (approximately 3–5 cents/kWh)
- This structure significantly changed the economics of residential solar for SRP customers — the fixed demand charge eroded payback periods
- Battery storage can help SRP customers by reducing demand and shifting production to higher-value periods
Why Net Metering Status Matters When Buying a Solar Home
If you're buying a home with a solar system, determining the current utility plan is critical:
- A grandfathered APS net metering plan (pre-2017) is extremely valuable — it provides significantly better economics than current plans. However: grandfathered net metering plans do NOT automatically transfer to a new buyer. When ownership changes, the new buyer is placed on the current (less favorable) rate plan. Confirm this with APS before assuming the solar system's economics will continue unchanged.
- Under SRP, solar economics are more challenging regardless of grandfathering — confirm the exact rate plan and demand charge structure
Arizona Solar Access Rights (ARS §33-439)
Arizona law protects homeowners' solar access rights. Under ARS §33-439, no private party (neighbor, HOA) can take action that would substantially impair the operation of a solar energy system installed on your property, with certain exceptions. Specifically:
- A neighbor planting trees that shade your solar panels after your system is installed may be actionable under ARS §33-439
- The statute creates a private right of action for damages and injunctive relief
- Solar easements (ARS §33-441) allow neighboring property owners to formally record a solar access easement on their property to protect your sunlight access
Practical Solar Access Considerations for AZ Buyers
- Check neighboring properties for large trees that could grow to shade panels over time
- Consider the orientation of the roof and surrounding structures when evaluating solar potential
- In new construction areas, be aware that future neighboring homes or landscaping could reduce solar production
HOA Restrictions on Solar in Arizona
Arizona law prevents HOAs from completely banning solar panels, but HOAs retain significant ability to regulate their appearance and installation. The relevant law is ARS §33-1816 (planned communities) and ARS §33-1261 (condominiums), both of which state that HOA rules that "effectively prohibit" solar installation are unenforceable. However, HOAs can:
- Require that solar panels not be visible from the street (may require specific roof placement)
- Require advance architectural committee (ACC) approval for solar installation
- Impose reasonable aesthetic standards: color of panels, racking visibility, conduit routing requirements
- Require panels to be flush-mounted to the roof rather than on ground-mounted racks (in most HOA communities)
The "effectively prohibit" standard is key. An HOA cannot impose requirements so onerous that solar installation becomes economically or practically impossible. But an HOA can require that panels not be visible from the street (if your roof layout allows this without destroying the system's efficiency).
Solar System Inspection Checklist
When buying an Arizona home with solar panels, order a solar inspection by a certified solar contractor or NABCEP (North American Board of Certified Energy Practitioners) certified inspector. The general home inspector typically does not have specialized solar knowledge. A dedicated solar inspection costs $150–$300 and is well worth it.
Solar Inspection Items
- Panel brand and age: Major tier-1 brands (SunPower, Panasonic, LG, Q Cells, Jinko) have better track records. Tier-3 off-brand panels may degrade faster. Panel age vs. stated production.
- Production monitoring data: Review at least 12 months of monitoring data (from SolarEdge, Enphase, or equivalent monitoring platform) to verify actual production vs. projected production
- Inverter type and age: String inverters (single inverter for whole system) vs. microinverters (one per panel) vs. power optimizers. String inverters typically last 10–15 years; microinverters 20–25 years. If string inverter is 10+ years old, replacement may be needed soon ($1,500–$3,000).
- Panel degradation: Solar panels lose approximately 0.5–0.8% efficiency per year. A 10-year-old system is producing about 92–95% of its original rated output.
- Roof penetrations: Solar racking penetrates the roof. Inspect for any signs of water intrusion around mounting hardware. AZ monsoon season can reveal leaks.
- Electrical connections: Ensure all electrical connections are code-compliant. Check for any arc fault issues.
- Permits and interconnection: Verify permits were pulled and inspections completed. Verify utility interconnection agreement is current.
- Battery backup (if applicable): Test battery capacity and cycling. Tesla Powerwall, Enphase IQ Battery, LG Chem: check age and remaining warranty.
Buying a Home With Solar — Complete Due Diligence Checklist
Step 1 — Identify Ownership Structure
Request from seller (in SPDS and separately): Is the system owned outright, under a loan, lease, or PPA? Get documentation.
Step 2 — For Leased/PPA Systems
Obtain full lease agreement. Note: monthly payment, annual escalator, remaining term, buyout schedule, transfer requirements, solar company contact. Decide: will you assume the lease, require seller to buy out, or is this a deal-breaker?
Step 3 — For Owned Systems
Request: proof of ownership (paid-in-full receipt or loan payoff documentation), permit records, interconnection agreement, production monitoring history, panel warranty documentation, inverter warranty.
Step 4 — Solar Inspection
Order specialized solar inspection by NABCEP-certified inspector. Cost: $150–$300. Add to BINSR if issues found.
Step 5 — Utility Plan Verification
Contact APS or SRP to determine current net metering/billing plan. Is it grandfathered? Will it transfer to new owner (typically no for favorable grandfathered plans)?
Step 6 — Financing Verification
Confirm with your lender: How will they handle the solar loan (UCC-1), lease, or PPA? What documentation is needed? Is subordination required and is the solar company willing to sign it?
Selling a Home With Solar — Maximizing Value
If You Have Owned Solar
- Prepare a "Solar System Summary" document: system size, panel brand, inverter type, installation year, 12 months of production data, utility plan, warranty information, estimated remaining life
- Include energy cost savings documentation: your last 12 months of utility bills vs. projected bills without solar
- Confirm with your listing agent that the solar is presented correctly in the MLS — panel brand, system size, and "OWNED" status should be prominently noted. Appraisers use MLS data.
- The appraisal will add $10,000–$30,000 for your owned system — price accordingly
If You Have a Solar Lease or PPA
- Get a buyout quote early — before listing. If the buyout is manageable, consider buying out the lease before going on market to simplify the sale and maximize value.
- If keeping the lease: disclose fully in SPDS, provide full lease agreement during due diligence, budget time for the transfer process (3–6 weeks)
- Price realistically — buyers who factor in the inherited monthly solar payment will discount their offer accordingly
- In your listing, clearly state the solar lease status and monthly payment so buyers can make informed offers
Data Tables — Arizona Solar at a Glance
Table 1: Owned vs. Leased vs. PPA — Complete Comparison
| Factor | Owned (Cash) | Owned (Solar Loan) | Solar Lease | PPA |
|---|---|---|---|---|
| Who Owns Panels | Homeowner | Homeowner | Solar Company | Solar Company |
| Federal ITC (30%) | Yes — homeowner claims | Yes — homeowner claims | No — company claims | No — company claims |
| AZ State Tax Credit ($1K) | Yes | Yes | No | No |
| AZ Property Tax Exempt | Yes | Yes | N/A (leased; no added value) | N/A |
| Adds Appraised Value | Yes ($10K–$30K+) | Yes (after loan payoff or as equity) | No | No |
| Monthly Payment | None (paid off) | Loan payment ($100–$250/mo) | Fixed lease ($80–$200/mo + escalator) | Per-kWh rate (variable) |
| Annual Rate Escalator | None | Fixed loan rate | Typically 2–3%/yr | Typically 1.5–2.5%/yr |
| Maintenance Responsibility | Owner | Owner | Solar company | Solar company |
| At Sale | Transfers to buyer as real property | UCC-1 must be paid off at closing | Buyer assumes (credit check) or seller buys out | Buyer assumes or seller buys out |
| Best For | Max financial benefit; cash buyers | Good incentives; financed | No upfront cost priority; some markets | No upfront cost; SRP customers (somewhat) |
Table 2: Arizona Solar Incentive Summary 2026
| Incentive | Amount | Level | Who Qualifies | How to Claim | Expiration |
|---|---|---|---|---|---|
| Federal ITC | 30% of total system cost | Federal | Owned systems, primary/secondary residence | IRS Form 5695 | 30% through 2032; steps down 2033–2034 |
| AZ State Income Tax Credit | 25% up to $1,000 | State | Owned systems, AZ residential | AZ Form 310 | No current expiration |
| AZ Property Tax Exemption | 100% — no added assessed value | State | All solar installations | Automatic | No expiration |
| AZ Sales Tax Exemption | ~8–9% of equipment cost | State | Residential solar equipment | Applied at purchase | No expiration |
| APS Net Metering (Legacy) | Near-retail rate for exported power | Utility | Pre-2017 installations on APS | Automatic (not transferable at sale) | Grandfathered; may end 2030–2033 |
| Utility rebates | Varies; may not be available 2026 | Utility | Check APS/SRP current programs | Application to utility | Varies; check annually |
Table 3: Solar System Due Diligence — What to Check When Buying an AZ Solar Home
| Item | Why It Matters | Where to Find It | Red Flag | Action |
|---|---|---|---|---|
| Ownership Structure | Determines value, tax benefits, transfer process | SPDS disclosure, lease agreement | Lease not disclosed or missing documents | Request full documentation immediately |
| Solar Loan/UCC-1 | Must be paid off at closing; affects title | Title search | UCC-1 not disclosed by seller | Require payoff at closing; adjust net proceeds |
| Lease Monthly Payment + Escalator | Affects DTI; ongoing cost | Lease agreement | High escalator (3%+/yr) over long remaining term | Negotiate seller buyout or price adjustment |
| Lease Remaining Term & Buyout | Determines long-term obligation | Lease agreement | 15+ years remaining, $30K+ buyout | Evaluate whether to assume or require buyout |
| System Age & Production Data | Older system = less production; affects value | Monitoring platform (SolarEdge, Enphase) | Production significantly below projections | Solar inspection; negotiate price adjustment |
| Panel Brand & Warranty | Tier-1 panels more reliable; longer warranty | Installer documentation | Off-brand panels; warranty already expired | Request documentation; factor replacement cost |
| Inverter Age | String inverters last 10–15 years; need replacement | Inspection | String inverter 10+ years old | Budget for inverter replacement ($1,500–$3,000) |
| Roof Penetrations | Improper sealing causes water intrusion | General home inspection + solar inspection | Staining, soft spots around mounting hardware | Require repair before closing |
| Utility Plan / Net Metering | Grandfathered plans don't transfer | APS or SRP account details | Seller claims "grandfathered net metering" will transfer | Verify directly with utility; recalculate economics |
| Permits & Interconnection | Unpermitted systems have financing issues | City permit records; utility agreement | No permits, no interconnection agreement | Require seller to obtain retroactive permits or adjust price |
Frequently Asked Questions — Arizona Solar Panels & Real Estate
Navigating Solar in Your Next Purchase?
Solar panels are increasingly common in Phoenix metro homes — and the difference between owned and leased solar can mean tens of thousands of dollars in value and significant monthly cost differences. I help buyers understand exactly what they're getting.
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