environmental
agriculture
alternative
blade
clean energy
conservation
countryside
ecological
ecology
efficiency
electric
electrical
electricity
energy
environment
equipment
field
generate
generation
generator
green
industrial
industry
innovation
innovative
landscape
mill
modern
power
production
propeller
renewable
resource
resources
rotate
rotation
rotors
rural
sky
sustainability
sustainable
technology
tower
turbine
wheel
wind
windfarm
windmill
windpower
windturbine