I guess 20%
dont use alot and what happens if you have no water
what are use of hydroelectricity
Wind power and hydroelectricity.
hydroelectriity costs 2 to 5 us cents and oil costs 100 dollars a barrel
Biofuels and alot of hydroelectricity. Slowly we are backing off oils and coal thats imported to us and although we still use nuclear power, we are stopping it soon.
About 10% of the US's electricity is hydro powered, so about 1 out of 10 homes is powered by hydroelectricity. But hydro power does account for 80% of renewable energy in the US.
It is mostly Used By Canada, US and Brazil Brazil= 10% Us=10% Canada=70% Canada uses the most hydro electric power in the world
cos its meg...
Cause they need power to power the country and make awesome warheads
It can help us with light, some charges of electronic stuff, TV, microwave, and many things.
In the US, nuclear power provides about 20% of the total electricity generation, making it the largest source of low-carbon electricity. There are 93 commercial nuclear reactors operating in 28 states.
Mainly lack of suitable sites. Hydro power forms about 7 percent of US electricity consumption so it's important, but you need a site where you can build a dam to form a reservoir, and you need enough rainfall of course to keep the reservoir topped up.