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The Maintenance for the equipment and people to operate it. Hydroelectricity is generated at damns. essentially it is almost free because the water does all the work, but it does not create a lot of electricity
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20.
60
alot because there is alot electiricty in the wind power machine but i dont know how much it cost by heart
£1 sqiud
50 dollars
$2500
About:$99,976,028
It depends what is wrong with them.
22$
$2