1) Electricity 
[adj] - of or relating to or used in the production of electricity by waterpower
hydroelectric The conversion of water power into electric power.
electricity created with the use of water
power produced by using the flow of water to spin turbines, which turn magnets inside a generator
adjective of or relating to or used in the production of electricity by waterpower; `hydroelectric power`
Electricity produced by turbines that are turned by water flow.
Using the power of water to generate electricity.
pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
of or relating to or used in the production of electricity by waterpower