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Toshiba takes step toward large-scale electricity storage

TOKYO -- Toshiba has developed a way to use hydrogen to store large quantities of electricity for extended periods of time, with a storage system deploying the technology potentially reaching the market in 2020.

     The Japanese company will first provide a system capable of storing up to 40,000 kilowatt-hours of electricity -- enough to power 10,000 households for eight hours. The system will be made by assembling fuel cells, electrolysis equipment and hydrogen storage tanks on a 600-sq.-meter plot. Hydrogen obtained through electrolysis will be stored in the tanks and reacted as needed with oxygen in the air via the fuel cells to produce electricity.

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