alternative

animation

blue

bright

building

clear

cloud

color

concept

conservation

construct

create

day

electric

electricity

energy

environment

environmental

field

fly

generate

generating

generation

generator

grass

green

grow

light

make

mill

move

natural

nature

object

over

plant

power

produce

renewable

sky

sun

technology

tower

turbine

turbines

white

wind

windfarm

windmill

working