yes it has been used successfully .....because of what.......
hydroelectricity is used to create electricity.
hydroelectricity was first used in 1878 in a goldfield. the inventors name is Lester Pelton.
chicken
Iceland can use hydroelectricity because of its several mountains. This allows water to flow making streams and rivers ideal for hydroelectricity to be used.
everywhere
about 50 years.
Yes, wind energy has been used successfully for centuries, primarily for grinding grain and pumping water. In modern times, wind turbines have been developed to generate electricity on a larger scale, and many countries have successfully integrated wind power into their energy mix to reduce reliance on fossil fuels.
Where there are hills and mountains.
It depends what you mean by successfully. It is used in several places but its production is presently uneconomical on a large scale.
Hydroelectricity has been available for public use for decades; hydroelectricity supplies around 20% of demand, and several countries have it as their main (in the case of Norway, almost only) source of power...
everything that uses electricity. hydroelectricity is the same thing as fossilfuel electricity...its just made differently