environmental
alternative
animal
background
biomass
coal
concept
design
earth
eco
ecological
ecology
electricity
energy
environment
factory
flat
forest
fossil
friendly
fuel
gas
generation
green
hydro
industrial
innovation
isometric
natural
nature
non
nonrenewable
oil
ore
plant
power
production
renewable
resource
solar
source
station
sun
sustainable
technology
timber
water
wind
windmill
定額
Renewable energy resources and nonrenewable, natural green power sources, vector isometric. Renewable earth resources solar and wind electricity, plants, coal, gas and oil extraction, forest timberの素材 [FY310152154112]
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