Power Semiconductors for Utility Scale Energy Storage Applications

As the global demand for energy grows due to industrialization and electromobility, the contribution from renewable sources such as solar (PV) and wind have significantly increased. In Germany, energy from renewable sources form almost half of total energy generated. However, due to seasonal fluctuations, there is a strong motivation to install energy storage solutions (ESS) and stabilise the energy infrastructure.

Currently, ESS units with 1.5kV DC-link are the state of the art and there are discussions to move towards higher DC-link voltages such as 2kV. Mitsubishi Electric has been active in order to support ESS applications and have offered a variety of options to select from. Mitsubishi Electric offers solutions for both 2-level as well as 3-level application and provides both Si and SiC solutions in each case.