Tom Gilks / Technicians standing in front of hydro electric power plant, Rwanda, September 2014.

Tom Gilks / Technicians inspecting pipes carrying water to hydro electric power plant, Rwanda, September 2014.

Graham Eaton / Power lines and pylons carrying electricity over mountain landscape from hydroelectric power station at Maentwrog, Wales, UK, October 2016.

Alan Williams / Pipeline from Llyn Lltdaw Reservoir on Mount Snowdon bringing water to the hydro-electric power station shown in the River Glaslyn Valley below with the summit of Snowdon in the distance, Snowdonia Na...

Steve O. Taylor (GHF) / Deforested area in Sabah, for dam construction. Sabah, Malaysian Borneo. July 2010.

Steve O. Taylor (GHF) / Deforested logs for export, Sabah, Malaysian Borneo. July 2010.

Steve O. Taylor (GHF) / Deforestation for construction of dam, Sabah, Malaysian Borneo. July 2010.

Steve O. Taylor (GHF) / Deforestation for construction of dam, Sabah, Malaysian Borneo. July 2010.

Steve O. Taylor (GHF) / Deforestation for construction of dam, Sabah, Malaysian Borneo. July 2010.

Steve O. Taylor (GHF) / Deforestation for construction of dam, Sabah, Malaysian Borneo. July 2010.

Steve O. Taylor (GHF) / Deforestation for construction of dam, Sabah, Malaysian Borneo. July 2010.

Luiz Claudio Marigo / Canyon of Sao Francisco River near Paulo Afonso town and the CHESF hydroelectric plant and dam, in northeastern Bahia State, northeastern Brazil. December 2009

Luciano Candisani / Machadinho Dam, small hydroelectic plant in Parana River, Brazil

Pal Hermansen / Panorama of hydroelectric power lake after drought and massive power production. Viken, Norway. August.

Pal Hermansen / Hydroelectric power dam lake drought and massive power production. Viken, Norway. August.

Pal Hermansen / Hydroelectric power lake after drought and massive power production. Viken, Norway. August.

Pal Hermansen / Hydroelectric power lake after drought and massive power production. Viken, Norway. August.

Ashley Cooper / A small scale hydro plant with water flowing at Colwyth Force, Ambleside, Lake District, UK.

Paul Harcourt Davies / Remains of the first hydroelectric power plant, Officine Netti, dating from 1893 built and designed by Aldebrando Netti, Orvieto, Umbria, Italy. February, 2021.

Morley Read / Rio Verde Chico Hydroelectric Project water intake, in rainforest. Rebuilt after extreme flooding of river due to abnormally heavy rainfall. Tungurahua province, Ecuador. December 2019.

Maxime Aliaga / View of rainforest from hydro electric dam, Batang Toru, North Sumatra