alternative
beam
blade
blue
clean
climate
cloud
conservation
development
ecology
electric
electricity
energy
environment
environmental
farm
generate
generation
generator
global
industrial
industry
innovation
light
mill
nature
power
production
propeller
ray
renewable
resource
rotate
rotation
sky
spin
station
sun
supply
sustainable
technology
tower
turbine
turbines
white
wind
windfarm
windmill
windpower