wind power
風力
alternative energy
blue
cloud
cloudscape
concepts and ideas
day
electrical power
electricity
energy
environment
environmental conservation
equipment
fuel and power generation
generating
generator
green
group of objects
ideas
industry
inspiration
mill
nature
nature symbolsmetaphors
nobody
nonurban scene
outdoors
panel
power
power line
sky
solar energy
solar power station
square
sun
technology
turbine
white
wind
wind turbine