Our company specialist in mechanical power transmission, shows in this new Intersolar edition, the new Cnum System. Our company have develope and patend the Cnum System for clean solar panels. Production losses due to the dirty on the solar panels change depending many factors and also depending if panels are assembled on fix structures or on tracking systems. On tracking systems the losses can be between 3% and 10%, while in a fix system can rise to the 20%. Besides, the cost for the cleaning maintenance and the cost for the water treatments are to high. Cnum is a cleaning system easy for instaling and practicaly free of maintenance, and can be instaled over panels on fix or tracking structures. With a rain sensor, the system start when the sensor detect the quantity of rain necesary for a right clean. Besides our software alow us to decide how many days we want to be on stand by from one clean to to following one. After one start the system desconect the rain sensor during the days stablished ignoring the possible rains. After this period the system waiting for new rains to make another cleaning. With this system you will reduce your cost for the cleaning and increase your production because althoug in the driest areas the Cnum will clean many times per year.