aerial
alternative
architecture
barrage
blue
building
clean
color
concrete
construction
control
dam
electricity
energy
engineering
environment
flood
generator
gravity
green
hydro
hydroelectric
hydroelectricity
hydropower
industrial
industry
infrastructure
landmark
landscape
nature
outdoors
overflow
plant
power
power lines
release
renewable
reservoir
river
structure
supply
technology
travel
view
wall
water
water dam
water energy
water flow
water power