The Mercedes-Benz Energy Storage System (MBESS) can be customised as an in-house solution or in a containerised format to meet various site requirements.
The Mercedes-Benz Energy Storage System (MBESS) combines high availability, scalability and flexibility for industrial and commercial applications. It consists of standardised and tested components, manufactured to the highest industry standards and built using proven technologies. Thanks to its modular design, the system can be flexibly adapted to different power and capacity requirements – from the battery to the inverter.
Components of MBESS
The Mercedes-Benz Energy Storage Systems consist of three key components: the DC system (battery), the cooling system, and the power electronics (Power Conversion System – PCS).
The DC system
The DC system utilises high-quality vehicle battery modules for efficient electrical energy storage. The standard system uses a 40-foot container with a capacity of 3.72 MWh and a power output of 3 MW. Smaller 20-foot containers are also available. The system is scalable from 1.6 MWh to over 100 MWh, providing flexible solutions for different applications.
The power electronics
The power electronics (Power Conversion System – PCS) provide the conversion between direct current (DC) and alternating current (AC), to enable grid connection. The system uses proven industrial inverters and an advanced software validation system to ensure reliable performance. All power electronics are housed in a 40-foot high-cube ISO container, which includes standard cooling, a switchgear system, and a transformer for seamless grid integration.
The cooling system
A liquid cooling system ensures uniform temperature distribution within the DC system, extending the battery lifespan. Additionally, the cooling system can be adapted to specific load profiles to further optimise efficiency.
Benefits of the Mercedes-Benz Energy Storage System (MBESS)
The MBESS has been assessed for full compliance with the latest safety standards. Three key safety measures are implemented:
A specially developed, functionally safe battery management system permanently ensures the reliability of the batteries, protecting them from ageing and dangerous conditions.
An integrated fire detection system with an aerosol suppression system provides additional safety in the unlikely event of a battery defect.
Thermal insulation of individual modules within a compartmentalised design ensures that the system remains reliable and safe even in the event of disruptions.
Thanks to its modular design, the Mercedes-Benz Energy Storage System (MBESS) can be optimally adapted to various requirements, with storage capacities ranging from 3.72 MWh to over 100 MWh.
Whether as a container solution, in-house system, or a customised configuration, the storage system offers maximum flexibility and plays a key role in the energy transition by supporting grid stability services such as black start and grid forming.
The Mercedes-Benz Energy Storage System (MBESS) enables particularly low total cost of ownership over its entire lifecycle. Planned maintenance intervals, live software updates, and uniform, low material ageing ensure high availability and economic efficiency. A predictive monitoring system extends the lifespan of the storage system while simultaneously reducing operating costs.
Commitment at all levels: The Mercedes-Benz Energy Storage System (MBESS) combines performance with sustainability. Low-emission technologies such as propane-based cooling and SF6-free insulation gas actively contribute to environmental protection. The use of repurposed batteries enables the reuse of valuable raw materials, enhancing resource efficiency.
MBESS is built on extensive expertise that has evolved since the pioneering days of stationary battery storage technology. With years of experience and continuous development, cutting-edge solutions are created to meet both today’s demands and tomorrow’s challenges. Close collaboration with scientific institutes drives the development of innovative technologies.
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