A: Very safe as compared to an oil or coal consuming plant. There is contaminants or explosive material involved just water flow by gravity to drive the turbines to drive a generator
"Hydro" means water so a hydroelectric plant is powered by moving water. Water just moving down a stream loses energy as it flows downstream. Think about how much energy you would have to use to move...
It's "fueled" by a natural process, rain. You don't have to go truck in railroad cars full of coal or pipe in petroleum products. As long as there is no severe drought (and it would have to be very...