STABL Energy’s core innovation is its patented modular multilevel inverter (MMI) technology, which allows direct series connection of low-voltage battery modules to generate a staircase voltage matching sine wave requirements. This approach reduces energy losses by up to 70% and operating costs by approximately 40%. The technology also efficiently integrates second-life EV batteries into stationary storage units, combining batteries in varied conditions to extend lifespan and reduce resource consumption.
STABL Energy offers two main product lines: outdoor cabinets with 128 kWh or 205 kWh usable capacity, and 20 ft containers ranging from 256 kWh to 1,233 kWh. Each system features continuous monitoring with real-time data on battery health, temperature, current, and voltage, and achieves up to 97% overall efficiency for charging and discharging.
In 2023, STABL Energy secured €15 million to expand commercial operations and advance its battery storage technology. Deployments across commercial sites in the DACH region demonstrated significant cost reductions and improved energy efficiency. The company also enhanced its outdoor cabinet solutions with higher capacity and performance metrics.
The recent €15M funding round included Nordic Alpha Partners and the European Innovation Council. Previous backers comprise UVC Partners, Smart Energy Innovation Fund (Energie 360°), Initiative for Industrial Innovators and various business angels. The European Innovation Council also originally provided a €2M grant for technology development.
