IEA Hydro Annex XI  has finalised its extensive study on Renewal & Upgrading of Hydropower Plants. The aim of this activity was to provide useful information for the successful management of renewal and upgrading projects of existing hydropower to hydro professionals such as hydro-owners, operators and future developers, hydro planners and designers, etc. The Summary Report and Case Histories are now available.   Download the two volumes and read more about the study...