Inside STABL technology
A new approach to electricity storage: The conventional combination of a high-voltage battery and a central inverter is a thing of the past. Our innovative modular multilevel inverter technology makes setting up battery storage systems easier, safer and more efficient than ever. Our solutions can reduce energy losses by up to 70%, while also lowering running costs and CO₂ emissions sustainably. How does it work? We make the inverter architecture dynamic - unleashing the potential of the energy future.
Conventional electricity storage systems consist of a high-voltage battery pack and a central inverter. Several permanently interconnected modules form the battery pack, which can have life-threatening voltages of up to 800 V. The central inverter converts this DC voltage into a grid-compliant AC voltage and thus connects the storage system to the power grid. This results in energy losses, which cost the operator money and also increase CO2 emissions.
Our modular multilevel inverter technology considerably simplifies the construction of electricity storage systems. Instead of connecting the modules statically, they are connected dynamically with our STABL modules. The energy storage system is a conglomerate of absolutely safe battery modules with touch-safe voltages below 60 V. This approach makes a central inverter superfluous. Compared to conventional systems, losses are reduced by up to 70 % and both operating costs and CO2 emissions are cut by up to 40 % per year.
Conventional vs. dynamic balancing
In conventional battery storage systems, the weakest cell determines the performance of the storage system. With increasing use, the maximum capacities of the battery cells drift apart and the cell with the lowest capacity determines the capacity with which the other cells can be charged. The capacities can be redistributed through balancing, but this costs energy and causes further losses.
With our modular approach, the weakest cells no longer affect the entire storage system, but only at module level. In addition, the modules are charged and discharged according to their individual state of charge, so that the charge states of the modules are automatically equalized. This means you get more energy from your battery storage system and can use it for much longer.
Data. Facts. Numbers.
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