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[Non-technical introduction, e.g. turns the weight of water (gravitational potential energy) into electricity by spinning a turbine as water flows from a high elevation to a low elevation. Usually fed by rivers, although water can be pumped to the higher elevation (pumped hydro).]

[Use cases including sizes, baseload and intermittent, responsiveness.]

[Very brief information on current global scale and cost, and outlook.]


[Greater depth of information on current global scale, resources required and future projects.]

[Complementary technologies like wind and solar. Competing technologies like batteries and gas. Geographical considerations.]


[Life cycle greenhouse emissions relative to other electricity generation methods.]

[Impact on river life. Land usage for lakes/reservoirs.]

[Quantify risk of collapsed dams.]


[Current and expected economics (including relative economics compared to competing technologies) of main uses cases.]

See also[edit]