environmental
alternative
blade
climate
cloudy
conservation
electric
electricity
energy
environment
farm
field
generate
generation
generator
global
green
industrial
industry
landscape
mast
metal
nature
panorama
power
propeller
renewable
rotate
rotating
rotation
sky
spin
station
supply
sustainability
sustainable
technology
tower
turbine
wind
windfarm
windmill
windpower
windturbine
wings