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How does a solar power system impact property value?

by larry•

How Does a Solar Power System Impact Property Value?

When I started my solar power supply business five years ago, I had no idea how many times I’d get asked the same question by homeowners: “Will putting solar panels on my roof actually make my house worth more?” At first, I’d rattle off stats about energy savings and green benefits, but over time, I’ve talked to so many buyers, appraisers, and solar adopters that I’ve built a real, on-the-ground understanding of this connection. Today, I’m breaking down exactly how a solar power system impacts property value—straight from the supplier’s perspective, no industry jargon, just what I’ve seen work (and what doesn’t) in thousands of installations. Solar Power System

Let’s start with the basics: it’s not a myth. Every market study I’ve referenced, plus dozens of local real estate agents I partner with, confirms that homes with owned solar systems sell for more than comparable homes without them. The numbers? The National Renewable Energy Laboratory (NREL) found that each kilowatt (kW) of installed solar adds roughly $4,000 to a home’s sale price. For a typical 6kW system, that’s $24,000 in added value. I’ve watched this play out firsthand—last quarter, we installed a 5kW system for a family in suburban Phoenix, and their home sold for $27,000 over asking just three months later, in part because the new buyers got to skip the upfront cost of the panels.

But wait, not all solar is created equal. That’s where things get interesting, and where my role as a supplier becomes critical. A lot of homeowners go for solar leases or power purchase agreements (PPAs) because they don’t have to pay upfront, but those actually don’t add to property value—sometimes even hurt it. Why? Because lease contracts are tied to the original homeowner, not the property. When a house sells, the buyer has to either assume the lease (which requires credit approval and often comes with high monthly payments) or remove the panels (which can cost $5,000 to $10,000). We’ve seen this play out in Tampa, where a client of mine had a PPA on their home; when they listed, buyers kept balking because they didn’t want to take over the contract. We ended up working with them to buy out the lease at a discount and switch to an owned system, and the home sold for $19,000 above their original asking price two weeks later. Owned systems, on the other hand, transfer seamlessly to new owners, and buyers immediately see the benefit of free electricity for decades.

I also talk to appraisers every month, and they’re the ones who actually assign value to solar systems now—back when we first started, many appraisers didn’t know how to factor solar into their reports, but that’s changed. The Appraisal Institute, which sets standards for U.S. appraisers, now has specific guidelines for valuing residential solar systems. For owned systems, appraisers calculate the “present value” of the energy the panels will produce over their 25 to 30-year lifespan. Let’s do a quick example: a 6kW system in a state with average electricity costs of $0.15 per kWh will produce about 9,000 kWh a year, saving the homeowner $1,350 annually. The present value of that savings, factoring in inflation and a realistic discount rate, is around $21,000. That’s almost exactly what NREL’s stat says, and it’s why appraisers are starting to see solar as a tangible asset, not just a “nice extra.”

What about in states with lower electricity rates? I get this question a lot from homeowners in the Midwest, where electricity is cheaper than in California or Hawaii. Even there, solar still adds value—just maybe not as much. A 2023 study from the University of Illinois found that for a home in Chicago, a 6kW system adds about $12,000 to the sale price, compared to $28,000 in Los Angeles. But that’s still a 10 to 15% lift in home value, which is nothing to scoff at. Plus, electricity rates go up almost every year—averaging about 3% annually over the last decade. That $1,350 annual savings in Phoenix will grow to almost $2,400 in 20 years, so the present value ends up being way higher than the initial number. Even in cheaper electricity markets, that long-term savings makes solar a smart investment.

Now, let’s talk about the flip side: when solar doesn’t help property value. It’s not just about owning vs. leasing. The quality of the system matters too. I’ve seen homes with cheap, off-brand panels that only last 15 years instead of 25, or systems that were poorly installed with loose wiring or tilted panels that don’t produce enough energy. When a buyer or appraiser looks at that, they see a liability, not an asset. That’s why we only work with top-tier panels and local installers who follow strict North American Board of Certified Energy Practitioners (NABCEP) guidelines. Last year, we had a client in Denver who tried to save money by going with a smaller, unlicensed installer; their system only produced 70% of the expected energy. When they listed, buyers offered $10,000 less because they’d have to replace the system sooner. We ended up helping them upgrade their panels and fix the installation, and they sold for $8,000 above the original asking price. Cheap solar is a bad investment, no matter where you live.

Another big factor: net metering policies. In states where utilities let homeowners sell excess solar energy back to the grid at retail rates, that adds even more value. For example, in California, net metering 3 lets homeowners get credit for every kWh they send back to the grid, which can cut their electricity bills to zero or even earn them money. A home with solar in a state with strong net metering will sell for more than a comparable home in a state with no net metering. That said, even without net metering, solar still adds value because of the direct savings on monthly bills. I’ve had clients in Texas, where net metering is limited, see their home values go up by $15,000 after installing solar, just from the monthly savings not going away.

What about renters and multifamily properties? A lot of people ask if solar works for apartments or rental homes. For multifamily buildings, installing a shared solar system can lower common area utility costs, which makes the building more attractive to tenants and buyers. We recently installed a 10kW system on a 12-unit apartment building in Austin, and the landlord reported that vacancy rates dropped by 20% after installation, because tenants were drawn to the lower rent (we helped structure it so part of the savings went to rent reductions) and eco-friendly features. For single-family rental homes, owned solar can make the property more valuable because you can charge higher rent—our data shows that rental homes with solar rent for 10 to 15% more than similar homes without.

I also want to address a common misconception: that solar only helps the environment, not your wallet. Sure, green benefits are great, but the value added to your property is pure economics. Let’s break down the return on investment (ROI) for a typical owned solar system. The average cost of a 6kW system after federal tax credits is around $12,000. You’ll save about $1,350 a year on electricity, so the payback period is around 9 years. Then, for the next 16 to 21 years, you’re saving money, and when you sell, you add $24,000 to your home’s value. That’s a ROI of almost 200% over the life of the system—way better than most home improvements, like a new roof or kitchen, which usually give you a 70 to 80% ROI. I’ve had clients who sold their homes 10 years after installing solar, and they recouped the full cost of the system plus the added value, so they basically got 10 years of free electricity on top of the extra sale price.

Now, let’s talk about how to maximize the impact of solar on your property value, from a supplier’s perspective. First, go owned, not leased or PPAs. We always advise clients to buy their system outright or take out a solar loan—even a small 3.5% interest loan will have a lower monthly payment than a lease, and you’ll build equity in your home. Second, invest in quality. We use panels with 25-year warranties and inverters with 10-year warranties, because that gives buyers peace of mind. Third, make sure your system is sized correctly. A 6kW system is enough for a 2,000 square foot home with average energy use, but if you have an electric car, you might want a 8kW system. Oversizing doesn’t just produce more energy—it makes the home more attractive to buyers who also have electric vehicles. Fourth, keep your system maintained. We offer annual check-ups for our clients, and regular cleaning and small repairs keep the system working at peak efficiency, which helps when appraisers calculate value.

I’ve been in this industry long enough to see solar go from a niche, expensive luxury to a mainstream, valuable home feature. When I started, most of our clients were eco-enthusiasts; now, 60% of our clients tell us the main reason they went solar was to increase their property value. That shift makes sense—homebuyers are more educated about energy costs than ever, and they’re willing to pay more for a home that lowers their monthly bills. The data backs that up: a 2022 study from Zillow found that homes with solar sell for 4.1% more than comparable homes without, which is the equivalent of $18,000 on a $450,000 home.

Of course, there are exceptions. If you’re planning to sell your home in the next year, installing solar might not give you the full value back—you probably won’t recoup the full cost of installation in such a short time. But if you’re staying in your home for at least 5 years, solar is almost always a net positive. We had a client in Phoenix who installed a system 3 years ago and sold their home; they made $10,000 more than the average home in their neighborhood, and they’d already saved $4,000 on electricity during their time there. That’s a win-win.

Another thing to consider: electric vehicles. More and more buyers are looking for homes that can support EVs, and a solar system is the perfect pairing. A home with solar already has the electrical capacity to add a charger, and buyers know that they’ll be able to charge their car for free with the sun. We’ve seen homes with both solar and EV chargers sell for even more—sometimes $30,000 over asking—because they check two big boxes for modern homebuyers.

Now, I know a lot of homeowners are still hesitant, worried about cost or whether solar will work for their home. That’s where we come in as a supplier. We don’t pressure anyone to go solar; we do a free assessment of their home—looking at their roof size, orientation, local sunlight, and average energy use—to show them exactly how much value they’ll add, how much they’ll save, and what the total cost will be. Last month, we did an assessment for a home in Seattle, where sunlight is less abundant, and we found that a 5kW system would add $15,000 to the home’s value, with a payback period of 11 years. The client ended up installing, and they told us later that the number was exactly what their real estate agent had told them buyers would pay extra for solar.

I also want to address the misinformation that’s out there. I’ve heard people say solar panels will damage your roof, or that they don’t work in cloudy climates. Both are false. Quality solar panels are installed with flashing and underlayment that actually protects your roof from water damage, and modern panels are designed to work in low light—we’ve installed systems in Seattle and Portland that produce 75% of the energy they would in sunny Arizona, and those homes still added value. The key is working with a reputable supplier who knows how to install panels properly and choose the right panels for your climate.

At the end of the day, a solar power system is more than just a way to generate electricity—it’s an investment in your home. It lowers monthly expenses, reduces risk from rising energy costs, and makes your property more attractive to buyers. From my years as a solar supplier, I can tell you that the homes we install on don’t just sell faster—they sell for more, because buyers recognize the long-term value of free, clean energy.

If you’re a homeowner considering solar, or a real estate agent wanting to learn more about how solar impacts your local market, we’re here to help. We offer free, no-obligation property assessments and can walk you through exactly how a solar system would work for your home, your budget, and your long-term goals. Don’t let uncertainty hold you back from a investment that pays off for decades. Reach out to us today to start the conversation.

On Grid Inverter References

  1. National Renewable Energy Laboratory. (2023). The Value of Residential Solar Photovoltaic Systems in U.S. Housing Markets.
  2. Appraisal Institute. (2022). Guide Note 28: Valuing Residential Solar Energy Systems.
  3. University of Illinois Urbana-Champaign. (2023). Solar Adoption and Property Values in Midwestern Housing Markets.
  4. Zillow. (2022). The Zillow Home Value Report: Green Features and Property Values.
  5. Solar Energy Industries Association. (2023). Residential Solar ROI and Market Trends.
  6. North American Board of Certified Energy Practitioners. (2022). Best Practices for Residential Solar Installation.

Hangzhou Huakun New Energy Equipment Co., Ltd.
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