Japan’s Mitsubishi Electric Corp is set to supply a 50-MW sodium-sulfur energy storage system at a power plant in Fukuoka prefecture.
The company received an order from Kyushu Electric Power Co Inc for installation of the ESS to be deployed at the site by the end of March 2016.
The systems will use sodium sulfur batteries manufactured by NGK Insulators Ltd to deal with the inflow of solar power to Kyushu Electric’s grids.
The announcement follows an assessment period by Kyushu Electric, Tohoku Electric, Hokkaido Electric and other utilities on how much renewable energy they could add without disturbing the grid.
Grid connection applications have been on hold since Autumn 2014 when the assessment began.