NOVELTY - The device comprises a solar panel converting optical energy induced from sunlight into electricity, a water storage part storing water supplied for electrolysis, water electrolysis hydrogen generation section producing hydrogen by electrolytic water supplied from the water storage part using electricity of the solar panel, a hydrogen storage unit stores hydrogen supplied from the hydrogen generation section, a super capacitor supplying power source to a phosphate-type fuel cell and a control unit charged with electricity produced in the solar panel.    USE - Used as a fuel cell power generating device.    ADVANTAGE - The device provides stable electric power supply to the street light of a region in which the common supply of electricity is difficult using solar battery capable of the supplying power without high-capacity storage battery.    DETAILED DESCRIPTION - The device comprises a solar panel converting optical energy induced from sunlight into electricity, a water storage part storing water supplied for electrolysis, water electrolysis hydrogen generation section producing hydrogen by electrolytic water supplied from the water storage part using electricity of the solar panel, a hydrogen storage unit stores hydrogen supplied from the hydrogen generation section, a super capacitor supplying power source to a phosphate-type fuel cell and a control unit charged with electricity produced in the solar panel. The fuel cell converts the chemical energy oxidizing the hydrogen into electrical energy using initial drive of the super capacitor. A control unit remotely controls ON/OFF and dimming of multiple LED street lights to comply with predetermined street light on off time and outdoor illumination. The control unit transmits status information about power production of the phosphate type fuel cell and charge/discharge amount of super capacitor received from the LED street lights through a predetermined mobile apparatus or a street light management server having Code division multiple access (CDMA) telecommunication function according to an identifier already given with the street lights. The status information comprises amount of current supplied to the street lights, lighting or light turning off state and brightness data. A methyl alcohol reservoir supplies methyl alcohol to the fuel cell. The mobile apparatus and the management server monitor the status information.