System for cleaning surface of solar cell panel

A system for cleaning a surface of a solar cell panel, comprising:

• a measurement unit measuring a power generation value of a solar cell panel;
• a reference unit providing a reference value, the reference unit including at least one selected from an anemoscope/anemometer providing data about a wind direction and a wind velocity, a dust meter providing data about a dust concentration in atmosphere, a nephometer providing data about a cloud amount, and a rainfall meter providing data about a rainfall;
• a control unit comparing the power generation value measured at the measurement unit with the reference value provided from the reference unit to command cleaning of the solar cell panel;
• and
• a driving unit operating a cleaning apparatus for cleaning a surface of the solar cell panel,
• wherein the control unit commands the cleaning of the solar cell panel only when the power generation value decreases for a reason of a contamination of the surface of the solar cell panel.