This system consists of (1) a crystalline silicon module of capacity 75 W (SIMS-SP75, Siemens, Germany), with dimensions 1.2 m · 0.527 m (0.632 m2 of area); (2) two batteries (DC12V 100 A) connected in series to obtain a 24 V power source; (3) a DC/AC inverter and (4) a power control system. The DC/AC inverter