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Toshiba begins demo operation of power-to-gas system; solar-to-H2

Toshiba Corporation has started demonstration operation of H2One, an independent energy supply system based on renewable energy and use of hydrogen as a fuel for power generation. Kawasaki City and Toshiba have installed the system at the Kawasaki Marien public facility and Higashi-Ogishima-Naka Park in the Kawasaki Port area.

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H2One combines photovoltaic installations, storage batteries, hydrogen-producing water electrolysis equipment, hydrogen and water tanks, and fuel cells. Electricity generated from the photovoltaic installations is used to electrolyze water and produce hydrogen, which is then stored in tanks and used in fuel cells that produce electricity and hot water.

System Specifications
Hydrogen production 1 m3 maximum per hour
Hydrogen consumption 2.5 m3 maximum per hour
Hydrogen tank storage capacity 33 m3 maximum (270 Nm3, 0.8 MPa)
Hot water supply capacity 75 liters maximum per hour (40 °C)
Photovoltaic facility 30 kW
Fuel cell output 3.5 kW maximum
Electricity storage capacity 350 kWh
Fuel cell efficiency 95% (55% for electricity and 40% for hot water)

Since H2One uses only sunlight and water for fuel, it can independently provide electricity and hot water in times of emergency. Kawasaki Marien and Higashi-Ogishima-Naka Park, a municipal facility to promote Kawasaki Port, is a designated emergency evacuation area. In times of disaster, H2One will use stored hydrogen to provide an estimated 300 evacuees to the site with electricity and hot water for about one week. The H2One system is housed in a container, and can be transported to disaster-hit areas on trailers.

In normal, non-emergency operation, H2One’s hydrogen energy management system is used to contribute to peak shift, which reduces demand for mains power at times of high demand, through optimized control of hydrogen production, power generation and storage. Toshiba is working to enhance its hydrogen storage capabilities to realize a self-contained solution of local energy production for local consumption.

The demonstration project is intended to verify the effectiveness of a hydrogen-based emergency electric power and hot-water supply system and a hydrogen energy management system in normal operating circumstances at both of the Kawasaki sites It will also support improvement of overall system efficiency.



Excellent combined efficiency.

Wind to H2, Solar to H2 and Power to H2 with adequate H2 storage could supply lower cost H2 for future FCEVs on a 24/7 basis while producing hot water + emergency power.

Way to go Toshiba!!!!

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