environmental
alternative
blade
blue
clean
climate
cloud
conservation
development
ecology
efficiency
electric
electricity
energy
environment
farm
field
generate
generation
generator
global
green
industrial
industry
landscape
metal
mill
nature
plant
power
production
propeller
renewable
resource
rotate
rotation
sky
spin
station
supply
sustainability
sustainable
technology
tower
turbine
warming
white
wind
windmill
windpower