animal
bird
body of water
breaker
catches
concrete
current
dam
deep
discharge
ecological
electric
electricity
electro
energy
fast
flies
flight
flood
flow
flux
foam
generator
hydro
hydroelectric
hydroelectric power station
hydropower
industrial
industry
motion
outdoor
power
power station
powerful
production
renewable
reservoir
river
seagull
seethes
spillway
spray
station
stream
system
technology
turbulent
water
wave
weir