FREAパンフレット（英語）

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7P.8P.10P.12P.14P.16Hydrogen Energy Carrier TeamWind Power TeamPhotovoltaic Power TeamGeothermal Energy TeamShallow Geothermal and Hydrogeology TeamEnergy Network TeamP.8P.10P.12P.14P.16Hydrogen EnergyCarrier TeamWind Power TeamPhotovoltaic Power TeamGeothermal Energy TeamShallow Geothermal andHydrogeologyTeamFig. 1: Unitized reversible fuel cellDER demonstration platformFig. 2: High-pressure hydrogen device for fuel cell 　　　 vehicle application developmentActivities and AchievementsMain Research Facilities● Distributed energy resources (DER) demonstration platform　(gure below)This platform will be used for the development of an energy management system (EMS) and its demonstration through PV systems (consisting of dierent technologies from ten companies), a large power grid simulator (Smart DER system research equipment consisting of a 500 kW AC grid simulator and two sets of 300 kW DC simulators). In addition, the platform enables hydrogen production technologies using renewable energy in anticipation of the hydrogen society, research and development facilities for distributed batteries such as electric vehicles and EMS evaluation linked with forecast technologies for solar irradiation and wind velocity (EV demonstration facilities, 20 kW class PV + water electrolysis demonstration facilities, etc.).*DER: Distributed Energy Resources1) System integration technology and energy managementThe team conducted a performance analysis of individual elemental technologies, including ten dierent types of photovoltaic (PV) systems with three types of twenty-two inverters (PCS: power conditioning systems), a proton exchange membrane type water electrolysis system (with a fuel-cell function), and a hydrogen storage system using metal hydrides; based on this, the team conducted a large number of joint research studies. In the future, the team will promote system research through the demonstration of system integration technologies using power smoothing simulation, hydrogen production with uctuating renewable energy, and electric vehicles.2) Advanced monitoring of renewable energy resourcesThe team developed a renewable energy power generation observation system to better understand the temporal and spatial variability in power generation when PV and wind power generation is introduced in Fukushima Prefecture on a massive scale through the Fukushima Prefecture Renewable Energy Next-Generation Technology Development Project (FY2013‒2014). The system makes it possible to estimate the amount of power generation (PV and wind power) in the entire Fukushima Prefecture using a 2-km mesh and an interval of one hour, and to forecast the power generation several hours in advance using the same model. The team will continue to improve the system’s accuracy and examine the possibility of its nationwide introduction in the future.3） Hydrogen production, storage and utilization system using renewable energyIn response to the problem of power output suppression in the case of introducing a large amount of renewable energy, we have developed a hydrogen energy system consisting of a water electrolyzer, storage unit and fuel cell system. We developed the water electrolyzer using photovoltaic output and succeeded in converting 15% of the solar energy into hydrogen energy by direct coupling between photovoltaic and electrolysis (Figure 1).We are aiming to put the stationary hydrogen energy system into practical use in residential areas. We are developing hydrogen storage using a metal hydride that can store hydrogen safely and easily. Furthermore, we aim to utilize CO2-free hydrogen for fuel cell vehicles, through the development of technology related to high-pressure hydrogen.