Do solar panels add value to your home?

By the SolarPayback Editorial Team · Updated June 2026 · Researched from authoritative sources. General information, not professional advice.

Solar does two financially distinct things: it lowers your monthly electricity bills, and it may raise the price a buyer is willing to pay for your house. Those are not the same benefit, and they do not always travel together. The single biggest factor that decides whether panels add resale value is whether you own the system outright or are using a lease or power purchase agreement (PPA).

What the research actually shows

The most widely cited work on this question comes from Lawrence Berkeley National Laboratory (Berkeley Lab), a U.S. Department of Energy national laboratory. Its multi-state study, commonly known as "Selling Into the Sun," analyzed thousands of home sales and compared otherwise similar houses with and without host-owned photovoltaic (PV) systems. The headline finding was consistent and measurable: buyers paid a premium for homes with owned solar, and that premium scaled roughly with the size of the system.

Two qualifications matter and are easy to lose in the marketing. First, Berkeley Lab examined host-owned systems that the seller had purchased; it did not find the same premium for third-party-owned (leased or PPA) arrays. Second, the premium reflects what buyers actually paid, not a guarantee for your specific home. Markets vary, and the study's averages do not transfer cleanly to every neighborhood.

Separate consumer surveys and real estate listing analyses also tend to report that homes advertised with owned solar sell somewhat faster than comparable non-solar homes, because the feature appeals to a slice of buyers who specifically want lower energy bills. The U.S. Department of Energy and Berkeley Lab have both framed solar as a recognizable home upgrade rather than a fixture buyers ignore.

Why owned solar tends to help and leased solar often doesn't

When you own your panels, they transfer with the house like a renovated kitchen or a new roof: a tangible improvement the buyer receives free and clear. When the system is leased or on a PPA, the buyer is not acquiring an asset. They are being asked to take over a contract with years of payments remaining, and possibly an escalator that raises those payments annually.

That difference creates friction at the closing table. With a leased or PPA system the buyer typically must qualify with the solar provider and formally assume the agreement, or the seller must buy out the contract before closing. Either path can slow the transaction, deter buyers who do not want a long obligation, or force a price concession. Real estate agents widely report that an un-assumed solar lease is one of the more common surprises that delays a sale.

• Owned (cash, or financed and paid off): generally treated as a value-adding improvement that conveys with the home.
• Loan still outstanding: can still add value, but the lien usually must be cleared from sale proceeds, so net benefit depends on the remaining balance.
• Leased / PPA: usually adds little appraised value and may complicate or delay the sale because the buyer must assume the contract.

Owned vs leased at resale

How appraisers handle solar

An appraiser cannot simply invent a number for your panels. They work primarily from comparable sales, so a credited value usually requires either recent local sales of solar homes or an accepted income-based methodology. The appraisal profession has built tools for exactly this. The "PV Value" methodology, developed with support from the U.S. Department of Energy and Sandia National Laboratories, estimates the contributory value of an owned PV system from its expected energy production over its remaining life. Appraisers often record those details on the Appraisal Institute's residential green and energy-efficient addendum, which gives lenders a standardized place to document the system.

Two practical consequences follow. If you live where solar is common, an appraiser is far more likely to find supporting comparables and credit the system. If you are an early adopter in an area with few solar sales, the appraiser may have thin data to work with even for an owned, well-documented array. And because PV Value treats the panels as an improvement that produces value, it generally does not apply to leased systems, which appraisers usually classify as personal property that does not belong to the home.

Added home value is not the same as energy savings

It is worth separating the two benefits clearly, because owners often double-count them. Your energy savings are the bill reductions you collect month after month while you live in the home; that is the basis of the payback calculation. The added home value is a one-time effect realized only when you sell, and only if a buyer and an appraiser agree it is there. A system can deliver excellent monthly savings and still add modest resale value, for example if it is leased, if it is aging, or if local comparables are scarce. Treat the resale bump as a possible bonus on top of savings, not as a second guaranteed return.

What drives the size of the value bump

• Ownership status is the dominant factor, as described above.
• System size matters because Berkeley Lab found premiums scaled with capacity; a larger owned array generally contributes more.
• Age and remaining life reduce contributory value as panels and especially inverters approach replacement.
• Local electricity rates raise the perceived benefit; in high-rate markets the bill savings a buyer inherits are worth more.
• Buyer demand and solar density in your area affect both willingness to pay and the appraiser's ability to find comparables.
• Roof condition can cut the other way, since panels over an aging roof signal a future removal-and-reinstall cost.

What to document for resale

Good paperwork is the cheapest way to protect any value your system carries. Buyers, agents, and appraisers all move faster when the file is complete. Keep these ready before you list:

• Proof of ownership or, if financed, the loan payoff figure and lien details.
• Production history from your monitoring app or utility statements, showing actual output over time.
• Equipment specifications and warranties for panels and the inverter, including transfer terms.
• Permits and the final inspection sign-off from your jurisdiction, plus the utility interconnection agreement.
• The installation contract and any roof or workmanship warranty.
• For leased or PPA systems: the full agreement, current payment and escalator, and the provider's transfer or buyout process.

Regional variation

None of this is uniform across the country. In states with high electricity prices, mature solar markets, and many solar homes already trading, owned systems are more likely to appraise well and attract competing buyers. In regions with cheap power, few solar comparables, or weaker buyer interest, even a quality owned system may earn a smaller premium. Net-metering rules, local incentives, and how your utility credits exported power also shape what a buyer expects to save, which feeds back into what they will pay. Because the local market is decisive, talk to an agent who has actually sold solar homes in your area rather than relying on a national average.

← Back to the SolarPayback calculator · Next, compare your options in Buy vs lease vs PPA.