World : Japan Is Building World's Largest Energy Storage System, Unlike Anything We Have Seen Before

Hokkaido, the northernmost of Japan’s main islands, is known for its chilly and windy climate. So it does not come as a surprise that the island hosts many wind farms in the area.

As the average wind speeds in the region reach up to 10 kmph around this time of the year, the wind farms are able to produce a considerable amount of renewable energy. However, the fluctuations in the energy produced act as a spoiler.

Therefore, North Hokkaido Wind Energy Transmission Corporation is looking to set up transmission facilities and high-capacity energy-storage systems, capable of catering to large-scale wind turbines of over 500 MW. Once set up, the pilot project would provide a stable supply to the grid in the area.

As per Mitsubishi Electric Corporation, the arm assigned with the task of monitoring and controlling the battery and power conditioners in the project, believes that the project will be the world’s largest energy-storage system. In figures, it will have a 240-MW output and 720-MWh rated capacity. 


Source :

Smart Grid Bulletin February 2019

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