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Man cleaning solar-panels from snow on a roof.
Vast solar panel arrays cover undulating hills under a clear blue sky, with wind turbines visible on distant mountain ridges. 
Perspective view along high voltage switchboard panels with generator control units in industrial power plant, electrical engineering and energy distribution concept, clean background.
Solar panels are set up along the river bank with trees and mountains in the background under clear skies.
Roof top solar on a school roof in Australia

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