Yes — but with an important caveat that most solar marketing glosses over. According to Lawrence Berkeley National Laboratory research, homes with owned solar systems sell for approximately 4.1% more than comparable non-solar homes, and NREL data puts the premium at roughly $4 per watt of installed capacity. On a 7 kW owned system, that's about $28,000 in added home value on average. The catch: leased systems don't generate the same premium, because buyers inherit the lease obligation rather than the asset.
Here's what the data actually shows — and where the limits of that data matter.
Disclaimer: Home value impacts vary significantly by market, appraiser familiarity with solar, and whether the system is owned or leased. Research cited is from NREL (2015, updated 2019) and LBNL. Section 25D residential solar credits expired December 31, 2025. Consult a local real estate agent and appraiser familiar with solar before drawing conclusions for your specific market.
Key Takeaways
- LBNL data: homes with owned solar sell for 4.1% more than comparable non-solar homes on average
- NREL $4/W premium means a 7 kW owned system adds ~$28,000 to estimated home value
- Leased systems add $0–$5,000 — the buyer inherits the lease obligation, not an asset
- Appraisers in markets with limited solar sales data sometimes struggle to reflect the premium accurately
- Strong solar markets (CA, AZ, NJ, MA) have more reliable data; less-mature markets may show weaker premiums
What the Research Actually Says
The most-cited solar home value study is NREL's 2015 analysis of 22,000 home sales in eight states, updated in 2019. The headline finding: homes with photovoltaic systems sold for a premium of about $4/W of installed capacity, or roughly 3.5–4.5% above comparable non-solar homes. LBNL's parallel research on 23 states arrived at a similar 4.1% figure.
These numbers are averages across diverse markets and system types. The actual premium in any individual transaction depends on several factors: your local market's familiarity with solar, how recently your system was installed (newer systems carry more value than aging ones), panel type and inverter quality, whether the system is owned or leased, and whether your appraiser has recent comparable solar home sales to reference.
The research is real and the premium is well-documented in solar-mature markets. It's less reliable in regions where solar is still uncommon enough that appraisers lack comparable data.
Owned System: The $4/W Math
The $4/W premium is the starting point for valuing an owned solar system's contribution to home value. On commonly sold residential system sizes:
| System Size | NREL $4/W Premium | 4.1% Premium on $500K Home |
|---|---|---|
| 5 kW | $20,000 | $20,500 |
| 7 kW | $28,000 | $20,500 |
| 9 kW | $36,000 | $20,500 |
| 12 kW | $48,000 | $20,500 |
The $4/W metric scales with system size; the percentage premium is a flat multiplier on home value. For smaller homes, the percentage method may yield a more realistic number; for larger systems on higher-value properties, the per-watt method may be more applicable.
Note that solar installers nationally average about $3.50/W installed in 2026 (LBNL Tracking the Sun). A system that costs $3.50/W to install and adds $4/W in home value is, in theory, value-positive from day one — before you account for any electricity savings. In practice, not every market supports that math, which is why it's important to look at comparable sales in your specific area.
Why Leased Systems Get Far Less
When you own your solar system, the buyer of your home is acquiring a productive asset that eliminates a portion of their future electricity costs. That asset has real, quantifiable value that a motivated buyer should pay for.
When you lease your solar system, the buyer of your home is inheriting a 20-year payment obligation with an escalating monthly charge. They're not buying an asset — they're taking on a liability. The panels are on the roof, but the buyer can't claim ownership, can't remove them without the installer's cooperation, and must continue paying the escalating lease rate.
Most buyers are willing to accept a lease transfer only if it's clearly below market electricity rates and the transfer process is simple. Some buyers decline entirely. The result: leased systems typically add $0–$5,000 to a home's sale price, compared to $20,000–$36,000 for comparable owned systems.
This is one of the strongest financial arguments for buying rather than leasing solar: the ownership premium at sale meaningfully changes the lifetime economics of the investment.
Appraiser Challenges: Where the Premium Gets Lost
Even for owned systems, the home value premium isn't automatic — it requires an appraiser who knows how to value solar and has access to recent solar home sale comparables in your market.
Appraisal methodology for solar typically follows one of two approaches:
- Income approach: Values the system based on the present value of future electricity savings it generates
- Comparable sales (market) approach: Uses recent sales of similar homes with and without solar to identify a market premium
The income approach produces more consistent results but requires making assumptions about future electricity rates. The comparable sales approach is more reliable where sufficient solar home sales data exists, but in markets where solar is uncommon, there may be too few comparables to draw a statistically meaningful premium.
If you're selling a home with solar, consider requesting an appraiser with specific solar valuation experience. The Appraisal Institute offers training in renewable energy home appraisal; some appraisers have additional PV Value certification.
| Market Type | Solar Premium Reliability | Why |
|---|---|---|
| CA, AZ, NJ, MA, NY | High | Many solar home sales — strong comparable data |
| TX, FL, CO, OR | Moderate | Growing solar market; comparables improving |
| Midwest, Southeast, rural markets | Lower | Fewer solar home sales; appraisers may undervalue |
State and Local Market Variation
The $4/W national average masks significant local variation. California, where solar is ubiquitous and electricity is expensive, has strong buyer demand for solar homes and well-documented premiums. Arizona and New Jersey show similar patterns. In markets where solar is still uncommon — much of the rural Midwest and Southeast — buyers may discount the system's value because they're unfamiliar with it, or because lower local electricity rates reduce the savings value.
The premium is also strongest for systems in good condition with transferable warranties. A 15-year-old system with degraded panels and an inverter approaching end-of-life will not command the same premium as a recent installation with a full 25-year panel warranty intact.
Property Tax Exemptions Protect Against Reassessment
One additional value consideration: most states with significant solar adoption have passed property tax exemptions for solar installations. This means the home value premium from solar doesn't trigger a higher property tax assessment in most cases. The exemption is in effect in California, New York, New Jersey, Massachusetts, Florida, Texas, and approximately 35 other states.
If you're in a state without a solar property tax exemption, the added home value from solar could theoretically increase your annual property tax bill. Check your state's status before installing; it's a small but real factor in long-term ownership cost.
Does Solar Make Your Home Faster to Sell?
LBNL data indicates solar homes sell slightly faster than comparable non-solar homes, in addition to selling at a premium. In competitive markets, a home with low/no electricity bills has a genuine appeal to buyers who are aware of utility rate trends. The difference in days-on-market is small (a few days to a couple of weeks in most data), but in a buyer's market, every advantage matters.
Use the Solar ROI Calculator to model how home value premium interacts with your state's electricity savings to determine whether solar makes financial sense in your market.
Bottom Line
Owned solar adds meaningful home value in most U.S. markets — approximately $4/W or 4.1% of home value based on the most comprehensive research available. A 7 kW system can add roughly $28,000 in sale premium, which combined with 10–15 years of electricity savings, makes the financial case for ownership compelling in most high-rate states. Leased systems add far less at sale, which is one of the clearest arguments in the lease-vs-buy debate. The premium varies by market and appraiser — but it's real, it's documented, and it's a legitimate part of the solar ROI calculation.
Related Guides
- Is Solar Worth It in 2026? — Full ROI analysis including home value, electricity savings, and payback period.
- Solar Panel Cost by State 2026 — Where your system cost falls relative to the national average.
- Solar Lease Fine Print Guide 2026 — Why leased systems underperform owned ones at home sale.
- Home Solar Panels Guide 2026 — Everything from sizing to installation to what to expect.
