close-up of faucet with green pvc water pipe for cleaning solar photovoltaic panels on rooftop of the building with sunlight in

alternative backgrounds cell clean cleaning construction dust eco ecology electric electrician electricity energy engineer environment environmental equipment factory faucet green grid industry innovation install installation installing maintenance outdoors panel photovoltaic pipe power station renewable residential roof rooftop safe safety service solar supply system technician technology tool close-up pvc water panels building sunlight evening time selective focus subject