FAQ

Paving the way for a net-zero energy system with safe, reliable, and sustainable battery storage.

STABL Energy strives for sustainable energy use with its inverter technology. Our goal is to increase the use of renewable energies with the help of energy storage. We do this by setting a new standard for battery storage. With our easy-to-integrate technology, we improve the design, safety, reliability, cost efficiency and handling of battery storage.

Our power conversion system also allows seamless and easy integration of used car batteries, which extends the lifetime of batteries and reduces their resource consumption. Thus, STABL Energy enables the most profitable and sustainable battery systems.

Normal battery inverters switch the high voltage of the power storage unit on and off for different lengths of time. This process is called pulse width modulation. The resulting voltage must be smoothed by a so-called grid filter so that it complies with the standards and requirements of the electricity grid. This costs efficiency and causes losses.

In science, STABL Energy's approach is called a "modular multilevel inverter" and is widely used in high-voltage DC transmission. STABL Energy was the first company to optimise it for stationary battery storage systems. Here, the sinusoidal voltage is simulated by connecting the individual battery modules in series one after the other. The step voltage generated in this way resembles the desired mains voltage much more than that of ordinary inverters. This means that the grid filter can be smaller and losses are minimised.

STABL Energy emerged from research projects at the Technical University of Munich, the University of the Federal Armed Forces Munich and the Osnabrück University of Applied Sciences. The company was founded in January 2019 as m-Bee GmbH and renamed STABL Energy in July 2020. STABL Energy hired its first employee in spring 2020 and has since grown steadily to now have 14 permanent and 13 part-time employees.

After initial funding through the EXIST programme of the Federal Ministry of Economics and Culture, STABL Energy was able to finance itself through several investment rounds and grants.

The founders of STABL Energy already know each other from their student days. Arthur and Martin were involved in the initial underlying research project, Nam and Arthur have known each other since the first day of their electrical engineering studies and Christoph worked together with Nam in a student consultancy. These long friendships laid the foundation for a business venture together and form the basis of the corporate culture at STABL Energy.