| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply control device capable of performing an effective utilization of surplus power and assuring a requisite amount of hot water within a hot water storage tank.SOLUTION: This invention relates to a hot water supply control device in which an electrical power control unit 2 for controlling a power supply state among a photovoltaic generation device 1, a circuit power network E, a dwelling H and a power load apparatus 3 changes over a first hot water storage operation mode in which a requisite storage amount Vn of hot water is stored in a hot water storage tank 33 under application of midnight power before use time zone, and when surplus power is generated at the photovoltaic generation device 1, hot water storage exceeding the requisite amount Vn of hot water is carried out under application of surplus power; and a second hot water storage operation mode in which a surplus power before use time zone is estimated on the basis of meteorological information, an estimated hot water storage amount Ve that can be stored by the estimated surplus power is further calculated and after a lack storage amount Vm of hot water under the estimated hot water storage amount Ve in respect to the requisite storage amount Vn of hot water is stored in the hot water storage tank 33 under application of midnight power, the hot water storage is carried out up to a requisite amount Vn of hot water under application of surplus power generated before use time zone.SELECTED DRAWING: Figure 1 |
