How do tidal power generate electricity? a. a barrage holds back water during high tide. the force of the water against the barrage turns the plant's turbines. b. a barrage stores water during high and low tide. when the water is released, it turns the plant's turbines. c. a barrage stops water from flowing out a low tide, creating a force that turns the plant's turbines. d. a barrage allows water to flow during high and low tide, this turns the plant's turbines.