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AssigneeHitachi, Ltd.
InventorsYasushi TOMITA, Masahiro Watanabe, Takafumi Ebara, Yuichi Otake, Akira Kobayashi, Hideyuki Kawamura
Estimating the term…
An energy management system includes an equipment data management unit which manages charging/discharging loss of a battery and heat radiation loss of an electric water heater, and causes a control unit to perform control to give priority based on the comparison to the energy storage facility more reducing loss and store energy. The energy management system includes a system operation calculation unit which predicts voltage distribution of the next day of a distribution system or demand-and-supply balance amount of the entire system by state monitoring data of a power system, calculates a demand amount increasing target value necessary for avoiding a photovoltaic power generation amount suppression on a consumer end by the voltage distribution of the next day of the distribution system or the demand-and-supply balance amount, and controls the energy storage facilities so as to satisfy the demand amount increasing target value on the consumer end.
An energy management system comprising an energy storage controller for performing control to store power generated by photovoltaic power generation facilities in energy storage facilities, comprising:
An energy management apparatus for performing control to store power generated by photovoltaic power generation facilities in a battery and an electric water heater, comprising:
An energy management apparatus for performing control to store power generated by photovoltaic power generation facilities on a plurality of neighboring consumer ends in energy storage facilities including batteries and electric water heaters on the plurality of consumer ends, comprising:
An energy management method comprising:
Dependencies are inferred from the claim text.