The Hydropower Sustainability Assessment Protocol ('the Protocol') is a tool that promotes and guides more sustainable hydropower projects. It is a methodology used to measure the performance of a hydropower project across more than twenty environmental, social, technical and economic topics. It provides a common language to allow governments, civil society, financial institutions and the hydropower sector to talk about and evaluate sustainability issues.
Assessments are based on objective evidence and the results are presented in a standardised way, to show how new projects are being developed or how existing facilities are performing. It has been designed to work on projects and facilities anywhere in the world.