noun, noun which may take the genitive case particle 'no'
hydroelectricity; hydroelectric power
Refers to electricity generated by water power. Often used in technical or formal contexts.
This region relies on hydroelectricity.
There is a hydroelectric power plant upstream on the river.
水力発電 refers to hydroelectric power generation (the process), while 水力電気 refers to the electricity itself.
Compound of 水力 (water power) and 電気 (electricity).