solar cell panel on roof house with strong sun and sky
Schlüsselwörter
alternative,
background,
blue,
building,
mobile phone,
cheap,
clean,
cloud,
eco,
ecological,
ecology,
economy,
electric,
electrical,
electricity,
energy,
environment,
environmental,
generation,
generator,
global,
green,
home,
house,
new,
panel,
photovoltaic,
power,
renewable,
residential,
resource,
roof,
sky,
solar,
sun,
sunlight,
sunny,
supply,
system,
technology
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