Standardizing appraisals for PV installations

Abstract

-As PV installations increase across the U.S., there will be a point when an appraiser will have the opportunity to value the PV system as part of a property sale or re-finance. Proper valuation techniques as applied to solar PV are necessary to reflect the increase in market demand for solar PV systems. Appraisers must follow the Uniform Standards of Professional Appraisal Practices (USPAP) when valuing solar PV systems, which means that appraisers must gain competency to 1) accurately recognize the value proposition of a PV system, and 2) develop the PV system's market value as it contributes to the property. The challenges currently faced by property owners with installed PV are whether the PV system adds market value to the property, and finding an appraiser with competency. Not all markets are the same, and PV market values will vary considerably based on many factors that include, but are not limited to the adoption rate in the particular market, the utility rate paid by the customer, the PV system's condition, aesthetics, and obsolescence. This paper will discuss how past challenges with respect to proper PV system valuation are being addressed in a standard fashion, along with the far-reaching benefits that may be available to future PV adopters as valuation concepts are ultimately recognized and adopted by valuation professionals, real estate agents, mortgage lenders and underwriters.

Solar soft cost ontology: a review of solar soft costs

“…Those firms that work to increase the ease with which installers can enter the market, improve processes, and navigate policy, regulation, and codes are facilitators. Building sector firms have a lot of influence in the residential solar market and can impact solar PV installation costs through their practices and product offerings [60,77]. This is particularly important as builders determine roof geometry and orientation, HOA rules governing solar, and whether homes will be solar-ready or come with an option that finances solar in the mortgage.…”