Do Solar Panels Increase Home Value? (2026 Data)

One of the most-cited statistics in solar marketing: "Solar panels increase home value by 4.1%." This number comes from a 2019 Zillow study that analyzed millions of home sales. On a $400,000 home, that is $16,400 in added value — nearly covering the cost of a typical system.

But the real picture is more nuanced. Whether solar adds value to YOUR home depends on several factors that the headline number obscures. Here is what the data actually shows.

What the Studies Found

The Zillow Study (2019)

Zillow analyzed home sales data across multiple markets and found that homes with solar sold for an average of 4.1% more than comparable homes without solar. The premium varied significantly by market:

• New York City metro: +5.4%
• San Francisco: +4.4%
• Los Angeles: +3.6%
• Orlando: +4.6%
• Riverside, CA: +2.7%

Key insight: The premium was highest in markets with high electricity rates and strong solar incentives — the same markets where solar provides the most economic benefit to the homeowner.

The Lawrence Berkeley National Laboratory Study (2015, updated)

LBNL analyzed 22,000+ home sales across 8 states and found that each watt of solar capacity added approximately $4/watt to home value. For a typical 8kW (8,000-watt) system, that is $32,000 in added value — significantly more than Zillow's percentage.

However, the LBNL study also found that the premium decreased for older systems. A brand-new system added more value than a 10-year-old system, as buyers factor in remaining panel lifespan and technology age.

The National Renewable Energy Laboratory (NREL)

NREL's research confirmed a home value premium for solar but emphasized that owned systems add more value than leased systems. Leased solar can actually complicate or reduce home value because the buyer must either assume the lease (adding a monthly payment) or the seller must buy out the lease before closing.

When Solar Adds the Most Value

1. You Own the System (Not Leased)

Owned solar is an asset that transfers with the house. The buyer gets free electricity from day one with no monthly lease payments. This is straightforward added value.

Leased solar is a liability transfer. The buyer must qualify for and assume the lease — adding paperwork, monthly costs, and potential deal complications. Some buyers walk away from homes with leased solar rather than deal with the lease transfer.

The data: Owned systems add $15,000-32,000 in home value. Leased systems add little to nothing — and may reduce the buyer pool.

2. High-Electricity-Rate Markets

Solar's value proposition is directly tied to the electricity it displaces. In markets where electricity costs $0.25-0.35/kWh (California, Connecticut, Massachusetts, New York), the annual savings are substantial — making the system more valuable to a buyer.

In markets with $0.10-0.12/kWh electricity (parts of the Southeast, Midwest), the savings are smaller and the value premium is correspondingly lower.

3. Newer Systems With Remaining Warranty

A solar system installed 2 years ago with 23 years of warranty remaining is far more valuable than one installed 15 years ago with 10 years remaining. Buyers factor in:

• Remaining panel warranty (25 years standard)
• Remaining inverter warranty (12-25 years depending on type)
• Panel degradation (panels lose ~0.5% efficiency per year — a 15-year-old system produces ~7% less than when new)
• Technology age (a 2024 panel is more efficient than a 2012 panel)

4. Markets With Strong Solar Awareness

In states where solar is common (California, Arizona, Colorado, Texas, Florida), buyers understand and value solar. In markets where solar is rare, buyers may not factor it into their offer — or may view it as unusual.

When Solar Does NOT Add Value (Or Hurts)

Leased Systems

As discussed — leases complicate sales. If you are considering solar and may sell your home within 5-7 years, buy or finance rather than lease. The home value benefit only applies to owned systems.

Poorly Installed or Aging Systems

A system with visible roof damage, mismatched panels, or outdated string inverters (when the market has moved to microinverters) can actually detract from a home's appeal. Buyers may see it as a maintenance burden rather than an asset.

Markets Where Solar Is Stigmatized

Some HOAs and neighborhoods view solar panels negatively for aesthetic reasons. While most states have "solar access laws" that prevent HOAs from banning solar entirely, buyer perception matters. If every comparable home in the neighborhood does not have solar, the panels may feel out of place.

The Roof Needs Replacement

If your roof has 5-10 years of life remaining, adding solar creates a future problem: the buyer will eventually need to pay $2,000-5,000 to remove and reinstall panels when re-roofing. Smart buyers and their inspectors will flag this and may discount their offer accordingly.

What Buyers Actually Care About

When real estate agents and home appraisers evaluate solar, they consider:

1. Owned vs leased? Owned = asset. Leased = liability transfer.
2. What are the current monthly electricity savings? Real data from utility bills matters more than projections.
3. Is the system transferable? Warranties, monitoring accounts, and utility interconnection agreements need to transfer to the new owner.
4. What is the system's age and remaining warranty? Newer = more valuable.
5. What is the roof condition? If the roof needs replacement soon, the panel removal/reinstallation cost reduces net value.
6. Are there any liens? Some solar loans create a lien on the property. This must be resolved before or at closing.

How to Maximize Solar's Impact on Home Value

If you are installing solar and may sell within 10 years:

• Buy, do not lease. The value difference is enormous.
• Install before re-roofing if your roof has 15+ years of life. If it needs replacement within 10 years, do the roof first.
• Keep all documentation: warranties, installation permits, production data, utility interconnection agreement.
• Keep the monitoring active: Buyers and appraisers want to see real production data, not projections.

If you are selling a home with existing solar:

• Provide 12 months of utility bills showing savings
• Provide the production monitoring history
• Confirm all warranties and their transfer process
• If leased, consider buying out the lease before listing (or price it into the sale)
• Highlight the system in the listing: "Owned 8kW solar system — $150/month in electricity savings"

If you are buying a home with solar:

• Verify owned vs leased
• Request production data (monitoring app access)
• Check panel age and remaining warranty
• Have a solar inspector check for damage, degradation, and proper installation
• Factor remaining panel life into your offer

Key Takeaways

• Solar adds $15,000-32,000 in home value for owned systems in most markets
• Leased solar adds little to nothing — and can complicate the sale
• The value premium is highest in high-electricity-rate markets (CA, NY, CT, MA)
• Newer systems with more remaining warranty add more value than older systems
• Roof condition matters — if the roof needs replacement soon, the solar premium shrinks
• Always own rather than lease if home value is a consideration
• Keep documentation and monitoring data — buyers want proof of savings, not promises

The takeaway is simple: owned solar is an asset, leased solar is a complication. If you are still deciding how to go solar, the home value data alone is a compelling reason to buy rather than lease.

Related articles:

• What Happens to Solar Panels When You Sell Your House?
• Solar Panels on Your Home: What Happens When You Sell
• Is Solar Worth It in 2026?

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