Patent ID: 9118211
Filing Date: 2015-08-25
Classification: H01M,H02J,Y02E

Abstract:
1. A power-supply system comprising: a first power-supply device which supplies power externally and includes a first power storage section; and a second power-supply device which supplies power externally and includes a second power storage section, wherein the first power-supply device and the second power-supply device, both of which supply power to a stage set used in a first performance, a second performance, and a third performance, and wherein in parallel with setting up the first power-supply device so as to supply power to the stage set used in the first performance, the second power storage section stores power generated by the solar panel connected to the second power-supply device, and wherein at the first performance, the first power-supply device supplies to the stage set a portion of power stored in the first power storage section, and wherein after the first performance ends and before the second performance to be held after the first performance starts, the first power-supply device supplies power remaining in the first power storage section to the second power storage section, and wherein in parallel with setting up the second power-supply device so as to supply power to the stage set at the second performance, the first power storage section stores power generated by the solar panel connected to the first power-supply device, and wherein at the second performance, the second power-supply device supplies to the stage set a portion of power stored in the second power storage section, and wherein after the second performance ends and before the third performance to be held after the second performance starts, the second power-supply device supplies power remaining in the second power storage section to the first power storage section, and wherein at the third performance, the first power-supply device supplies to the stage set power stored in the first power storage section.