Hand drawn sketch of solar panels and wind turbines representing alternative energy sources in a simple line vector illustration design.
Palabras clave
hand-drawn,
vignetting,
solar panel,
alternative energy,
renewable energy,
environmentally friendly,
nature conservation,
energy efficiency,
solar,
energy,
panel,
power,
photovoltaic,
electricity,
sun,
solar panel,
wind,
alternative,
renewable,
environment,
green,
blue,
technology,
sky,
ecology,
mobile phone,
sunlight,
clean,
solar energy,
turbine,
environmental,
generator,
industry