High-resolution assessment of global technical and economic hydropower potential

David E.H.J. Gernaat*, Patrick W. Bogaart, Detlef P. van Vuuren, Hester Biemans, Robin Niessink

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

39 Citations (Scopus)


Hydropower is the most important renewable energy source to date, providing over 72% of all renewable electricity globally. Yet, only limited information is available on the global potential supply of hydropower and the associated costs. Here we provide a high-resolution assessment of the technical and economic potential of hydropower at a near-global scale. Using 15”×15” discharge and 3”×3” digital elevation maps, we built virtual hydropower installations at >3.8 million sites across the globe and calculated their potential using cost optimization methods. This way we identified over 60,000 suitable sites, which together represent a remaining global potential of 9.49 PWh yr−1 below US$0.50 kWh−1. The largest remaining potential is found in Asia Pacific (39%), South America (25%) and Africa (24%), of which a large part can be produced at low cost (<US$0.10 kWh−1). In an ecological scenario, this potential is reduced to 5.67 PWh yr−1.
Original languageEnglish
Pages (from-to)821-828
JournalNature Energy
Early online date18 Sep 2017
Publication statusPublished - 2017

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