Does Solar Increase Home Value?
Multiple peer-reviewed studies confirm that solar panels increase home values. The key question isn't whether solar adds value — it's how much, and what factors determine the premium.
“Solar is one of the few home improvements that pays for itself AND increases your property value. The data from Zillow and Lawrence Berkeley Lab is clear.”
— Peter Galvez, The Sun Broker
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Zillow's analysis of millions of home sales found that homes with solar panels sold for approximately 4.1% more than comparable homes without solar. On a $500,000 home in California, that translates to roughly $20,500 in additional value — often more than the net cost of the system after tax credits.
Lawrence Berkeley National Laboratory studied over 22,000 home sales across eight states and found that buyers consistently paid a premium of about $4 per watt of installed solar capacity. For a typical 7kW residential system, that equates to roughly $28,000 in added value. The premium was strongest in markets with high electricity rates — exactly the conditions in PG&E and SCE territories.
Ownership status is the biggest factor affecting the value premium. Homes with owned (purchased) solar systems receive the full value boost. Homes with leased solar systems or PPAs may see little to no premium because the buyer inherits a lease obligation rather than a free-and-clear asset. In some cases, leased systems can actually make homes harder to sell.
System age, condition, and remaining warranty also affect the premium. Newer systems with transferable warranties and modern panel technology command higher values. A system with 20 years of warranty remaining is worth more than one with 5 years left. Well-maintained systems with documented production history are most attractive to buyers.
California's property tax exclusion (AB 1451) means that the added home value from solar does not increase your property tax assessment. This is a significant financial benefit — you gain equity without the corresponding tax increase that would normally accompany a home improvement of this magnitude.
Myth Busters
Myth: Solar panels make your home harder to sell. Reality: Homes with owned solar sell faster on average, according to multiple MLS studies.
Myth: All solar adds equal value. Reality: Owned systems add significant value; leased systems may add little or none.
Myth: Solar panels will be outdated by the time you sell. Reality: Solar panels last 25-30 years and the technology remains compatible with the grid.