Mitsubishi Electric has been selected to supply its BLEnDer RE energy-management system to monitor and control the battery and power conditioners (PCS) for 240MW output and 720MWh rated capacity energy-storage system at Kita-Toyotomi Substation in Toyotomi, Teshio, Hokkaido.


Image: Mitsubishi to supply energy management system, power conditioners for world’s largest energy-storage system. Photo: Courtesy of Les Powell/

It is owned by North Hokkaido Wind Energy Transmission.

The order has been awarded by Chiyoda, which will execute the design, engineering and construction for the Grid Reinforcement Pilot Project for Wind Turbines, which is led by North Hokkaido Wind Energy Transmission under the auspices of the Ministry of Economy, Trade and Industry’s Agency for Natural Resources and Energy. The energy-storage system is expected to commence operation by March, 2023.

Grid Reinforcement Pilot Project for Wind Turbines

Upper Hokkaido in northern Japan has favorable wind conditions and abundant open land, making the area suitable for wind turbines. Renewable-energy power suppliers have been applying to construct wind farms in the area, but as these wind farms proliferate, fluctuations in their power output will increasingly impact the electricity demand-and-supply balance. Consequently, energy storage systems must be introduced to improve the balance and thereby strengthen the grid with stable power supply.

Under the pilot project, Hokkaido Wind Energy Transmission will introduce transmission facilities and high-capacity energy-storage systems to enable groups of large-scale wind turbines of over 500MW to be connected to the grid in northern Hokkaido.


The BLEnDer RE energy-management system monitors and controls batteries for renewable energy power supply. The system, which incorporates Mitsubishi Electric’s reliable energy-management technology for stable power supply, will help to balance electricity demand and supply, such as power surpluses from renewable energy, and comply with Hokkaido’s strict grid codes for connecting private-generation systems (wind-turbine and photovoltaic) to grids to sell power to utilities.

Source: Company Press Release