The electric vehicle (EV) industry is rapidly advancing, pushing the demand for faster, more scalable, and energy-efficient charging infrastructure. As EV adoption climbs, especially for heavy-duty trucks and buses, next-generation charging technology must deliver not only higher power but also flexibility to suit diverse operational needs. Siemens’ new SICHARGE FLEX system is a pivotal innovation in the megawatt charging era, designed to support the evolving commercial and passenger EV ecosystem with scalable, intelligent power delivery solutions. Its modular design and advanced dynamic power distribution address the growing need for adaptable infrastructure at fleet depots and public charging hubs alike, marking a significant leap in EV charging technology.
SICHARGE FLEX: Technical Excellence and Operational Flexibility
Siemens has engineered SICHARGE FLEX as a distributed EV charging system capable of delivering DC charging power from 480 kW to an impressive 1.68 megawatts (MW) with a peak charging current of up to 1,500 amperes. This output surpasses many competitors, supporting both CCS and MCS charging standards. The standout feature is its fully dynamic power distribution system that intelligently allocates energy across multiple charge points in real time. This means the system can flexibly direct the right amount of power where and when it is required, optimizing usage—even when multiple vehicles charge simultaneously. Each charge point can deliver power in increments of 80 kW or 120 kW, offering granular control to maximize charging efficiency while protecting the grid.
Compact and space-conscious, the system boasts an industry-leading power density of up to 656 kW per square meter. Its advanced front-in front-out cooling technology allows flexible installation, including wall mounting, floor standing, or overhead placement, with dispensers installable up to 300 meters from the main power cabinet. This adaptability suits a variety of site layouts, including constrained urban spaces or large fleet depots. As a result, the SICHARGE FLEX is versatile enough for heavy-duty e-trucks, city and regional e-buses, and passenger EVs alike, enabling rapid charging and supporting future vehicle technologies that require high-capacity power.
Integration, User-Centered Design, and Energy Management
Beyond raw power, Siemens has prioritized user experience and operational efficiency in SICHARGE FLEX’s design. The system integrates seamlessly with Siemens’ cloud-based Sifinity Control platform, offering operators full remote visibility, configurable controls, and real-time monitoring. This ensures maximum uptime and simplifies maintenance. Additionally, depot operators benefit from Siemens’ DepotFinity smart energy management software, which optimizes fleet charging even within limited grid capacities. This integration reduces costly energy infrastructure upgrades by intelligently managing energy use, lowering the total cost of ownership while ensuring reliable charging operations for large fleets.
The modular design ensures SICHARGE FLEX is future-proof and scalable, supporting up to four MCS charge points or six CCS points per system, or a combination configured to operator needs. The dual-plug, single-use feature allows a single charge point to serve different charging standards without loss of capacity. Cybersecurity is embedded with Siemens’ “Security by Design” principles, ensuring secure data transmission and system integrity, a critical factor as charging systems become digitally interconnected.
Early Market Adoption and Commitment to Sustainability
The market has shown strong confidence in Siemens’ technology, exemplified by leading Charge Point Operator OMV’s order of SICHARGE FLEX for their Kufstein site in Austria. The site will serve passenger cars, e-trucks, and e-buses on a busy European corridor, initially featuring six charge points with expansion plans aligned with grid upgrades. This demonstration highlights Siemens’ commitment to delivering high-performance charging solutions at strategically important locations supporting long-haul and regional EV traffic.
SICHARGE FLEX also aligns with Siemens’ sustainability mission by enabling efficient energy use and grid balancing, contributing to a cleaner electrified transport network. Its design helps optimize power utilization, which reduces environmental impact while supporting the broader transition to e-mobility. Siemens envisions this system as a cornerstone of a comprehensive sustainable E-Mobility ecosystem that empowers businesses to scale confidently and operate efficiently in the megawatt charging era.
