| 摘要 |
<p>A naturally-irrigated cleaning add-on for a solar panel or a solar collector, comprising: at least one wiper track mountable on at least one side, respectively, of a frame of said solar panel or said solar collector; a wiping unit configured to travel along said at least one wiper track, to clean a transparent front cover of said solar panel or said solar collector; and an automatic actuator configured to actuate said wiping unit upon detection of dew and/or precipitation.</p> |
