Energy storage

Giant batteries in Japan and Germany

Jürgen Heup, 7 Jun 13
Energy production and consumption changes. The renewable energy world of the future needs different kinds of storage technologies. Now the first countries starts with battery projects bigger than 10 megawatts.

Japan’s economics minister Toshimitsu Motegi has plans to build a battery capable of storing 60 megawatt-hours of electricity on the island of Hokkaido. The battery, which would be the largest of its kind so far, would store energy from solar plants. It is said to be part of efforts to stop Japan’s second-largest island being dependent on big brother Honshu for its energy. The energy ministry says the project will cost around EUR 230 million.

Germany also has plans for giant batteries. Younicos, a Berlin-based company that specialises in integrating renewables into the grid, and Samsung SDI, which produces lithium-ion batteries, announced in April that they had agreed a partnership for building large-scale, grid-connected batteries. Younicos is planning to use turnkey battery arrays to offer services such as frequency regulation, voltage stability, black start capability and short circuit power. Plans are already underway for a five-megawatt-hour array in northeast Germany. The array will cost around EUR 15 million to build.

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