america
backlit
blue
brazil
brazilian
cable
color image
consumption
dam
day
ecological footprint
electric
electric power
electrical
electricity
energy
environmental issues
hydro electricity
image
industrial
industry
itaipu
lake
no people
outdoors
parana state
photograph
picture
power
power line
power plant
pylon
renewable
south america
south american
stock photograph
stock picture
sub station
supply
tower
transmission
transmission tower
utilities
water
wire