The IEA also said this, "Hydro electric is currently the most common form of RENEWABLE energy and plays an important part in global power generation. Worldwide hydropower produced 3 288 TWh, just over 16% of global electricity production in 2008, and the overall technical potential for hydropower is estimated to be more than 16 400 TWh/yr. "

it's easy to prattle on about the glories of solar and wind when under it all hydro dams are the real core of RENEWABLE energy world wide.

https://www.iea.org/publications/freepublications/publication/hydropower_essentials.pdf