alternative
blue
clean
climate
conservation
development
ecological
ecology
electric
electricity
energy
environment
environmental
generate
generation
generator
global
grass
green
industrial
industry
innovation
japan
metal
mill
nature
power
propeller
renewable
resource
rotate
rotation
sakata
sky
spin
supply
sustainability
sustainable
technology
turbine
turbines
warming
white
wind
wind turbine
windfarm
windmill
windpower
windturbine