green

blue

high

sky

equipment

summer

sunlight

field

nature

environment

wind

energy

natural

Efficiency

electric

electricity

generation

industrial

power

supply

technology

three

industry

tower

ecology

global

development

clean

environmental

wing

ecological

production

alternative

generator

mill

turbine

windmill

innovation

rotation

spin

propeller

wings

produce

rotate

rotating

renewable

sustainability

sustainable

generate

windmills