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water wheel
as early as 100 B.C. the ancient greeks used a water wheel to grind corn -
turbines
in the early 1800's turbines slowly replace dthe water wheel due to the higher effiency of the turbine -
the first hydropower station
in wisconsin the first hydropower station was created. it produced 12.5 killowatts of power an hour. which will power about 800 laptops on sleep mode for an hour. -
grand coulee damn
the united states largest hydropower dam was contructed in washington state on the columbia river -
canada's energy
in 1945 hydroelectricity produced 94% of canada's energy -
three gorges dam
currently the worlds largest hydroelectric dam -
how stuff works
water in a river or resevoir is damed and water is forced into underwater intakes through control gates. through penstock or pipesthrough turbines that turn generator coils creating energy that travels through transformers that send enrgy to a powerhouse thta distributes the energy through powerlines. the water is released down river -
micro hydropower
many reasons why hydropower dams werent being built before was because of the impact on the inviroment that killed fish and rivers eroded. a new design has been made in pakistan. this design consists of many small dams and chanels. this way there wouldnt be any worry of a dam breaking and flooding. -
for sale today
today a small hydroelectric generator can be bought for around $1400. these produce around .25-2.5 killowatts. the most popular one today is the pelton wheel.
