| 摘要 |
PROBLEM TO BE SOLVED: To take full advantages of the power of a battery.SOLUTION: On the basis of the power generation amount of a photovoltaic power generation device 16 at a predetermined time, and the weather information acquired from a weather information server 92, a HEMS30 determines whether or not full charge, for raising the power storage amount of a storage battery 52 from a lower limit to an upper limit, is possible twice in one day. If full charge is possible twice, the HEMS30 charges the storage battery 52 until the power storage amount reaches the upper limit, discharges the storage battery 52 thus charged until the power storage amount reaches the lower limit, supplies the discharged power to a plurality of power load means according to a predetermined priority, and charges the storage battery 52 thus discharged again until the power storage amount reaches the upper limit. |
