PHOTOVOLTAIC POWER GENERATION DEVICE COOPERATION HEAT PUMP HOT WATER STORAGE TYPE HOT WATER SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve accuracy of a boiling operation by power generation surplus power.SOLUTION: A photovoltaic power generation device cooperation heat pump hot water storage type hot water supply system includes: HP power consumption storage means 37 for storing HP power consumption which is power consumption of heat pump type heating means 19 predetermined according to a plurality of boiling target temperatures; surplus power monitoring means 40 for monitoring power generation surplus power of a photovoltaic power generation device 3; surplus power boiling determination means 41 which compares the power generation surplus power and HP power consumption according to the boiling target temperature and, in the case where the power generation surplus power is larger than the HP power consumption, which outputs a surplus power boiling possible signal, and in the case where the power generation surplus power is equal to or less than the HP power consumption, which outputs a surplus power boiling prohibition signal; and control means 35 which performs a boiling operation for boiling hot water in a hot water storage tank 10 to the boiling target temperature by the heat pump type heating means 19, in the case where there is a surplus power boiling possible signal, and which performs a boiling operation in the case where the surplus power boiling prohibition signal.SELECTED DRAWING: Figure 2