Please note, this document was reissued in January 2023 as a professional standard. It was previously published in April 2018 as a Guidance Note. The regulatory requirements remain the same.


This professional standard has been prepared with regard to valuation practices in the UK. It is intended to assist the valuer in highlighting the main factors that affect the valuation of commercial renewable energy installations and to outline the valuation process and approaches.

It does not set out to provide a comprehensive manual for the appraisal of renewable energy installations. However, it does address some of the more complex issues that might arise when assessing the Market Value, Investment Value (Worth), Equitable Value (Fair Value) and Synergistic Value for such assets and seeks to place them in the context of the RICS Valuation Standards and UK valuation practices.


The guidance covers:

  • categories of renewable energy
  • preparatory work and property inspection
  • methods of valuation
  • market sector issues and challenges and
  • dealing with uncertainty.