architecture
bridge
building
catalan
catalonia
construction
control
dam
electric
electricity
energy
engineering
environment
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europe
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falling
flood
flow
flowing
horizontal
hydro
hydroelectric
hydroelectric power station
hydroelectric station
hydropower plants
landscape
nature
outdoor
outdoors
panta de sau
pouring
power
pyrenees
reservoir
resource
river
sau
sau reservoir
sky
spain
station
structure
supply
technology
ter
ter river
turbine
view
water
water power plant
waterfall