Adding solar panels is one of the most impactful improvements you can make to increase your home’s value. Multiple studies consistently show that homes with solar systems sell for more than comparable homes without them, and they sell faster. Here’s a comprehensive look at the data, the factors that influence how much value solar adds, and how to maximize your return.

Key Takeaways

  • Studies show solar panels add 3 to 4 percent to home value on average, with some markets showing higher premiums.
  • A Lawrence Berkeley National Laboratory study found buyers pay about $15,000 more for a home with a 6kW solar system.
  • Owned solar systems add value; leased systems complicate sales and may not add value.
  • Local electricity rates and solar market maturity affect the premium buyers will pay.
  • Solar homes typically sell 20 percent faster than comparable non-solar homes.

The Research: How Much Value Does Solar Add?

The most cited study on this topic is from the Lawrence Berkeley National Laboratory, which analyzed over 22,000 home sales across eight states. The findings showed that buyers consistently paid a premium of about $4 per watt of installed solar capacity. For a typical 6kW system, that’s a $24,000 premium. More recent analysis from Zillow found that homes with solar energy systems sold for 4.1 percent more than comparable homes without them.

The premium varies by market. In states with high electricity rates and strong solar incentives (California, Massachusetts, New Jersey), the premium is higher. In states with cheap electricity and less solar awareness, the premium can be smaller. But in virtually every market studied, solar adds value relative to comparable non-solar homes.

Owned vs. Leased Solar Systems

This distinction is critical. An owned solar system, whether purchased outright or financed with a solar loan that has since been paid off, transfers with the home as a tangible asset. Appraisers can apply the income approach to value: the system saves the buyer money on electricity, so it has quantifiable economic value. This is what generates the price premium.

A leased solar system is a different story. The lease transfers to the new buyer, who must qualify with the leasing company and take over the lease payments. Many buyers balk at this complication, and some won’t qualify. Real estate agents report that leased solar systems can slow home sales and sometimes result in the seller having to buy out the lease (at significant cost) to close a deal. If you’re considering solar with plans to sell within a few years, leasing is risky. A solar loan that you pay off before listing is a better approach.

Factors That Influence the Solar Premium

Local Electricity Rates

The higher your local electricity rate, the more valuable a solar system is to a potential buyer. In California, where residential electricity rates average 25 to 30 cents per kWh, a 6kW system producing 9,000 kWh per year is worth $2,250 to $2,700 in annual savings. That’s a compelling asset. In a state with 10-cent electricity, the same system produces $900 in savings. Buyers pay more for a more valuable asset.

System Size and Output

The value added scales with system size. A larger system that covers 100 percent of the home’s electricity use is more attractive to buyers than a small system that covers only 20 percent. Systems that produce more than the home uses, with net metering credits flowing back to the utility, are particularly attractive to energy-conscious buyers.

System Age and Condition

A brand-new or recently installed system with 25 years of warranty remaining is more valuable than a 15-year-old system with aging panels and an inverter that may need replacement. The age discount is real: as a solar system ages, the remaining warranty period shrinks, panels degrade slightly, and buyers discount accordingly. Upgrading an inverter before listing can help recover value.

Market Familiarity

In markets where solar is common (California, Hawaii, Arizona, New Jersey), buyers understand what they’re getting and have seen solar listings before. In markets where solar is rare, buyers may not know how to value it and appraisers may not have comparable sales data. Working with a real estate agent who understands solar is important in any market, but especially in markets where solar is still emerging.

How Appraisers Value Solar

Real estate appraisers use three approaches to value solar systems: the comparable sales approach (comparing to similar homes with and without solar), the income approach (valuing the stream of electricity savings like an investment), and the cost approach (depreciated replacement cost). In markets with enough solar sales data, the comparable sales approach produces the most reliable results. In markets with limited data, appraisers often fall back on the income approach or cost approach, which can undervalue a system relative to what buyers actually pay.

The PV Value tool, developed with support from Sandia National Laboratories, helps appraisers calculate the income value of a solar system based on system output, electricity rates, degradation, and discount rate. Ask your installer for a PV Value report when you’re ready to sell: it gives appraisers a defensible methodology for capturing full solar value.

Solar and Property Taxes

Adding value to your home can increase your property taxes, which might offset some of the financial benefit. However, many states offer property tax exemptions for solar systems, meaning the added value of solar doesn’t increase your assessed value for property tax purposes. California, Arizona, Colorado, New Jersey, and many other states have some form of solar property tax exemption. Check your state’s policy before assuming your taxes will rise after installation.

For a complete picture of how solar affects your home’s finances, including sale price, property taxes, and utility savings, call (855) 427-0058 or request a free consultation online. Our team can walk you through the economics for your specific home and market.

Case Study: Solar Adds $28,000 at Sale in Massachusetts

Background

A homeowner in suburban Boston installed a 7.5kW solar system in 2019 at a total cost of $24,000 before the federal tax credit ($16,800 after the 30 percent ITC). Massachusetts electricity rates average about 23 cents per kWh, and the state has a Solar Massachusetts Renewable Target (SMART) program that provides additional incentive payments.

What Happened at Sale

When the home sold in 2023, their real estate agent specifically marketed the solar system in the listing and educated the buyers’ agent on how to document the system’s value for the appraiser. The appraiser used the income approach, calculating roughly $1,700 per year in electricity savings over a 20-year remaining system life, discounted to a present value of approximately $28,000.

Results

The home sold at a premium that real estate agents attributed largely to the solar system. The sellers estimated the solar investment returned well over 100 percent when accounting for 4 years of electricity savings plus the sale premium.

Expert Insights From Our Solar Panel Installers About Home Value

One of our senior solar panel installers with over 15 years of experience shares this perspective: “I’ve watched the solar home value premium grow substantially over the past decade. Early on, buyers weren’t sure what to make of solar and sometimes it was a neutral factor in sale negotiations. Now buyers actively seek out solar homes, and in markets like California and Massachusetts, it’s a genuine competitive advantage when listing. The most important thing I tell sellers is to own the system outright before listing. A lease can complicate everything. Buy it, or pay off the loan, and it becomes a clear asset that transfers cleanly.”

Frequently Asked Questions

Do solar panels increase home value in every state?

Research consistently shows a positive premium in virtually every market studied, but the size of the premium varies. High-electricity-cost states and mature solar markets show larger premiums. In states with cheap electricity, the premium still exists but is smaller.

Does a leased solar system add value to a home?

Usually not. Leased systems don’t transfer as a tangible asset and can complicate sales. The new buyer must qualify for the lease transfer, and many buyers are deterred by the obligation. Owned systems add clear, appraisable value; leased systems often don’t.

How do I make sure my solar system is fully valued when I sell?

Work with a real estate agent who understands solar and knows how to document system value for appraisers. Provide your installer’s production data, warranty documentation, and utility bills showing savings. The PV Value tool can give appraisers a defensible framework for valuing the income stream.

Will solar increase my property taxes?

It depends on your state. Many states exempt solar systems from property tax reassessment, meaning the added value doesn’t increase your tax bill. States with exemptions include California, Arizona, New Jersey, Colorado, and others. Check your state’s specific policy with your installer or a local tax advisor.

How much does a solar system add per watt in home value?

Lawrence Berkeley National Laboratory research found buyers pay approximately $4 per watt of solar capacity in premium. For a 6kW system, that’s roughly $24,000. However, this figure varies by market, electricity rates, and system age. Current systems in high-rate markets may command higher premiums.

Summing Up

Solar panels consistently increase home value across virtually every US market studied. The premium averages 3 to 4 percent of home value, solar homes sell faster, and buyers in high-electricity-cost markets pay a substantial premium for the energy savings. The key is owning, not leasing, your system and working with professionals who know how to communicate solar value to buyers and appraisers.

To maximize your return on a solar investment, start with a proper professional installation. For a free consultation and quote, call (855) 427-0058 or request a free quote here.