Tohoku University and Mayekawa Mfg. Co., Ltd. have succeeded in continuous operation for 72 hours (3 days) assuming a long-term power outage due to a large-scale natural disaster with the "electric power / hydrogen combined energy storage system" built at the Moniwa Water Purification Plant in Sendai City. Announced that.This demonstrated that this system can stably supply high-quality power for a long time even with irregular fluctuations in photovoltaic power generation output and load power consumption.
A combined electric power / hydrogen energy storage system that combines an electric power storage system and a hydrogen storage system is expected as a new emergency power source because it does not require fossil fuels.
Conventionally, private generators that mainly use light oil or kerosene have been used as emergency power sources, but in the event of a large-scale natural disaster, it is difficult to secure fuel that accompanies transportation, so a large-capacity fuel tank is available in advance. It is necessary to store fuel in.However, there is a problem that the fuel in the tank changes over time during storage, which tends to lead to malfunction in an emergency, but since regular refueling is costly, it does not depend on fossil fuels and has a large capacity. Early establishment of emergency power sources is required.
Tohoku University and Mayekawa Mfg. Co., Ltd. have developed a "electric power / hydrogen combined energy storage system" that has the functions of emergency power supply and effective use of renewable energy in the business of New Energy and Industrial Technology Development Organization (NEDO). It is a large-capacity emergency power supply that has succeeded in continuous operation of the demonstration system for 72 hours (3 days) and can supply high quality and stable power against long-term power outages in the event of a large-scale natural disaster. We have demonstrated that accurate fluctuation compensation is effective in utilizing renewable energy not only in emergencies but also in normal times.
In the future, it is expected that this system will be introduced in evacuation areas in the event of a large-scale natural disaster.