Prevents water flow to other parts of dam

Converts potential energy into kinetic energy

Keeps the water flow from low to higher level

Converts kinetic energy into potential energy

More reliable

Low initial cost

Efficiency is high

Greenhouse effect is avoided

By storing water in high quantity

By using surge tanks at the water canal

By using water turbine to drive alternator

By creating high head through penstocks

Damages the reactors

Creates health hazards

Reduces fission process

Enormous heat is produced

Output increases

Output decreases

Output remain same

No output in the cell