Patent ID: 8500918

Claim:
A solar panel cleaning system for cleaning solar panels of a solar row, the solar row having a length and a width, and the solar row being inclined and having an upper end and a lower end in the width direction of the solar row, the upper end being elevated to a position higher than the lower end, the cleaning system comprising: at least one cleaning apparatus that is selectively operable to clean a solar panel surface of the solar row; a support frame that supports said at least one cleaning apparatus, said support frame being configured to selectively move said at least one cleaning apparatus in both said width direction and said length direction over a surface of the solar row, a controller coupled to said at least one cleaning apparatus and to said support frame to selectively move said at least one cleaning apparatus in said length direction of the solar row, and to selectively move said at least one cleaning apparatus up and down in said width direction of the solar row, between said upper and lower ends, and to cause said at least one cleaning apparatus to clean a solar panel surface of the solar row during a downward movement of said at least one cleaning apparatus in said width direction of the solar row.