Installing a Solar Cell on a Roof. Solar panels on roof. Workers installing solar cell farm power plant eco technology.
Palabras clave
solar,
panel,
roof,
installation,
renewable,
green,
power,
electricity,
energy,
men at work,
photovoltaic,
man,
alternative,
installing,
panel,
maintenance,
technology,
safety,
environment,
innovation,
engineer,
technician,
ecology,
home,
people,
industry,
house,
install,
sustainable,
mobile phone,
electrician,
helmet,
equipment,
building,
person,
voltage,
industrial,
roofing,
contractor,
roofer,
repair,
business,
construction,
electric,
work,
rooftop,
substitution
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