green

white

blue

on

sky

field

nature

environment

plant

wind

energy

mountain

Efficiency

electric

electricity

generation

industrial

power

supply

technology

landscape

industry

tower

ecology

farm

global

development

conservation

environmental

ecological

production

top

alternative

generator

mill

turbine

windmill

station

innovation

rotation

spin

propeller

climate

rotate

of

the

renewable

resource

sustainability

sustainable