Do solar panels increase home value?

Owned systems usually do. An array you bought outright, or financed with a loan you pay off at closing, is a permanent improvement that appraises and shows up in comps — the widest study, a 2015 Lawrence Berkeley National Laboratory analysis of about 22,000 sales in eight states, found a premium of roughly $3,000–$4,000 per installed kilowatt. Treat that as a ceiling rather than an expectation: that is $3–$4 per watt, measured when the systems in the data cost $4–$5 per watt to install, so the premium tracked what owners had spent rather than exceeding it. Installed prices are $2.50–$3.75 per watt today, and the premium tracks them down — do not apply the 2015 dollar figure to a 2026 system. It also varies widely by market and local electricity prices.

What happens to leased solar panels when you sell?

A lease or PPA is a 15-to-25-year contract, not equity. Appraisers generally cannot assign value to equipment the seller does not own, so it adds nothing to the appraisal and adds friction: the buyer must qualify with the solar company and the lender has to review the UCC filing against the property. Some sellers buy out the lease at closing to keep the deal together.

What do buyers actually pay for with solar?

A verifiable electricity bill reduction backed by twelve months of utility statements and production data, a young system (inverters last 10–15 years and cost $1,500–$4,000 to replace), favorable net metering that transfers with the house, and clean paperwork — permits, interconnection agreement, transferable warranties, and inspection sign-off.

Should I replace my roof before installing solar?

Yes, if the roof is anywhere near the back half of its life. Panels last 25–30 years and asphalt shingles 15–30, so an array on a 15-year-old roof commits someone to paying $1,500–$6,000 to detach and reset the panels when the roof goes. Solar belongs on a roof with at least 15 years left.

Is it worth installing solar just to sell the house?

No. A resale premium at best returns roughly what you spent, on a number that swings hard by market, after one to three months of permitting and installation — and a new array on an aging roof hands the buyer a $1,500–$6,000 detach-and-reset bill to negotiate against. The return comes from the electricity you avoid buying over the years you still live there, so install solar when the operating math works for your own bill. To raise a sale price specifically, curb appeal, efficiency, and replacing end-of-life major systems do more per dollar.

Do solar panels add resale value?

Owned solar panels usually add value. Leased panels usually do not, and can cost you buyers. That single distinction explains most of the contradictory advice you will find on this question — two houses with identical arrays on the roof sell very differently depending on who holds the paper. Here is what actually transfers to a buyer, and what to check before you count solar as equity.

Owned vs. leased is the whole question

If you own the system outright — bought cash, or financed with a loan you pay off at closing — the array is a permanent improvement, like a new roof or a finished basement. It appraises, it shows up in comps, and the buyer inherits the electricity bill savings with no obligations attached. The widest appraisal research on owned residential solar — a 2015 Lawrence Berkeley National Laboratory study of about 22,000 home sales across eight states — landed around a premium of roughly $3,000–$4,000 per installed kilowatt. Read that as a ceiling rather than an expectation. Put it in the same units as the cost line below and the reason is plain: $3–$4 per watt of premium, measured on systems that cost $4–$5 per watt to install. The premium tracked what owners had spent rather than exceeding it. Installed prices are $2.50–$3.75 per watt today, and the premium tracks the cost down — do not carry the 2015 dollar figure onto a 2026 system and conclude you are ahead. It also varies enormously by market and by local electricity prices, and it decays as the array ages.

If you lease, or you are on a power purchase agreement (PPA), you do not own the panels. What you are handing the buyer is a 15-to-25-year contract with monthly payments and an escalator clause. Appraisers generally cannot give value to equipment the seller does not own, so it adds nothing to the appraisal — and it adds friction: the buyer must qualify with the solar company, the lender has to review the lease's UCC filing against the property, and any of that can delay or kill a closing. Some sellers end up buying out the lease at closing to keep the deal alive.

What buyers actually pay for

A real electricity bill reduction they can verify. Pull twelve months of utility statements and production data. A concrete "this house's power bill is $22 a month" beats any claim about the array's rating.
A young system. Panels carry 25-year production warranties, but inverters last 10–15 years and cost $1,500–$4,000 to replace. A 14-year-old array is a pending bill, not a feature.
Favorable net metering. In many states, the utility's buyback terms attach to the original interconnection date and transfer with the house. Where that is true, an older grandfathered rate can be worth more than the hardware.
Clean paperwork. Permits, the interconnection agreement, transferable warranties, and the inspection sign-off — assembled, not promised.

The roof underneath is the catch

Panels last 25–30 years. Asphalt shingles last 15–30. If you put a new array on a 15-year-old roof, you have committed the next owner to paying $1,500–$6,000 to detach and reset the panels when the roof goes — and buyers who understand this will price it in or walk. Solar belongs on a roof with at least 15 years of life left, which in practice means replacing the roof first if it is anywhere near the back half of its range. Our guide to timing a roof replacement covers how to tell where yours sits, and how long a roof lasts by material gives the lifespan bands.

What it costs in 2026

Residential system, installed, before incentives: $2.50–$3.75 per watt — roughly $15,000–$23,000 for a 6 kW array.
Battery storage added: $10,000–$18,000 per unit.
Inverter replacement at year 10–15: $1,500–$4,000.
Panel detach-and-reset for a roof replacement: $1,500–$6,000.
Lease buyout at closing: varies widely; ask the provider for a written payoff quote before you list.

See our methodology for how we build these bands. Federal and state incentives move faster than any published number, so confirm what is available in your state and year before assuming a net cost.

Should you install solar to sell?

No — but not because the premium is trivial. The problem is that a resale premium at best returns roughly what you spent, on a number that swings hard by market, after one to three months of permitting and installation and often longer. That is a wash you have tied up five figures in. A new array on a roof in the back half of its life is worse than a wash: it hands the buyer a $1,500–$6,000 detach-and-reset bill to negotiate against. The return on solar comes from the electricity you avoid buying over the years you still live there, so install it when the operating math works for your own bill and your roof is young enough to carry it. If the goal is specifically to raise a sale price, the money does more in the places covered by upgrades that actually add resale value — curb appeal, efficiency, and major systems that are not near end-of-life.

The bottom line

Owned, young, well-documented solar on a roof with life left is a genuine asset at resale. A lease or PPA is a contract the buyer has to accept, not equity you can price. Before you list, find out which one you have, get the payoff or transfer terms in writing, and confirm the roof underneath is not about to force a five-figure decision on the next owner.