Toshiba has supplied a traction energy storage system (TESS) to Tobu Railway.
TESS stores traction energy generated by decelerating trains as they enter a station and releases it as needed when trains accelerate from the station. The system will be operational from December 22, 2014.
Toshiba in a statement said it has installed TESS at Unga station on the Tobu Urban Park Line, and utilizes its SCiBTM rechargeable batteries to store regenerated power. Toshiba’s TESS is offering a battery capacity ten times that of typical traction energy storage systems.
At Unga Station, regenerative traction energy from train deceleration is stored in the TESS for supply as needed when trains are accelerating from the station, facilitating stable electricity supply.
The system can be optimally configured to support other applications, including traction energy loss prevention and peak demand power management.
Toshiba aims to expand marketing of traction energy storage systems that facilitate efficient energy use of energy, to railway companies in Japan and overseas.