Solar

A properly designed and functioning solar system -- whether for producing electricity or for space or water heating -- adds value to a property. Several studies have statistically analyzed large samples of homes and found higher resale values for those with solar photovoltaic systems.

Lenders and appraisers may perceive significant differences in value and risk for leased versus owned systems, as exemplified by 2015 FannieMae Guidelines.

Google's "Sunroof" project may be a useful tool for appraisers in quickly estimating the cost savings achieved by a solar home system.

Further reading

• Selling into the Sun - 8-state statistical review of solar home sale premiums (user-owned systems, not leased)
• Exploring California PV Home Premiums
• Rooftop Solar Leases Scaring Buyers when Homeowners Sell
• The Impact of Photovoltaic Systems on Market Value and Marketability
• Field Guide to Solar PV Energy Features