| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water storage and supply system capable of avoiding shortage of hot water for a possible power cut based on information concerning commercial power, and capable of suppressing increase of peak power consumption by saving the use of electric power.SOLUTION: Information on a scheduled power cut or power demand and supply prediction is acquired from, for example, a server 12 of an electric power company through a network 11 by a power source information acquisition control part 103. In a power source state correspondence control part 104, an amount of hot water equivalent to the amount of hot water planned to be used in a time zone of the scheduled power cut is boiled up in advance or is added to an amount of water to be boiled up in advance. A valve position of a mixing valve 54 for adjusting a temperature to a hot water supply set temperature is changed to the valve position corresponding to the hot water supply set temperature before start of the power cut. When the information that power demand and supply gets stringent is acquired, boiling-up operation of a heat pump operation system 2 is forbidden or the output is reduced. |
