Image: ScaniaPress images show that the demonstration used a vehicle registered in Sweden. According to Scania, the charging system achieved up to 1,000 amperes and 750 kW during Vehicle-to-Grid (V2G) feedback. This marks the maximum output on the vehicle side. As is well known, Scania uses the same batteries in its battery-electric trucks as German manufacturer MAN. These batteries support a maximum fast-charging capacity of 375 kW via CCS and 750 kW via MCS.The key aspect is that the demonstration was conducted using the Megawatt Charging System (MCS)—leveraging the new generation of ultra-fast charging technology currently being developed for heavy electric trucks. Scania is now among the pioneers in this field. Just a few weeks ago in Germany, the project partners of SPIRIT-E demonstrated bidirectional charging with a MAN truck in a pioneering trial, feeding 325 kW of power from the truck back into the grid. However, that trial involved a CCS charging process, not MCS.Within the CharIN organisation, industry stakeholders have been working for years to standardise megawatt charging, ensuring that charging large commercial vehicles via MCS plug works universally and under all conditions. Little information from the working groups is made public, but in early February, CharIN announced on LinkedIn: “We are thrilled to announce that IEC 63379, the standard for the Megawatt Charging Systems, is now officially published!”However, the referenced IEC 63379 is just one of several standards within the MCS system. It focuses on the plug interface—and this has indeed been standardised since February. Nevertheless, software and communication aspects remain unfinished. According to industry experts, CharIN may need the rest of this year to complete this work.Scania is convinced that MCS will play a key role in the breakthrough of electric long-haul transport and future energy services such as Vehicle-to-Grid. “Electric trucks will not only consume electricity, they can also become an active resource in the energy system,” said Tobias Ejderhamn, Global Manager, Transformation & New Business, Scania. “This shift transforms the fleet operator’s role from solely providing transport services to also offering energy flexibility.”According to the Swedish manufacturer, the tested system enables secure real-time communication between the truck, the charger, and energy management systems. This is a fundamental requirement for heavy electric vehicles to become active, controllable components of the energy system. The advanced communication level also allows charging and discharging processes to be dynamically controlled—aligned with transport requirements and current grid conditions.“What makes this significant is not only the bi-directional energy flow itself, but the ability to combine megawatt charging with intelligent energy management,” said Yorben Muller, Product Manager Charging, Traton. “To our knowledge, this is one of the world’s first demonstrations of vehicle-to-grid functionality using MCS for heavy commercial vehicles.”Scania highlights that the combination of high-power charging and integration into energy management systems could enhance the economic viability of battery-electric trucks.“The ability to combine high-power charging with intelligent and secure energy management could also strengthen the business case for battery electric trucks by creating new ways for fleet operators to optimise energy usage and lower their operational costs,” added Ejderhamn.The manufacturer sees the initial use case for V2G technology primarily in depots—specifically, ‘where vehicles are parked for longer periods and charging can be coordinated with energy demand and grid conditions.’In summary, Scania states that its demonstrated charging solution supports the following:Bidirectional charging and discharging via MCSEnhanced real-time communication between vehicle, charger, and energy management systemsBackend-controlled energy managementIntegration with external charging and energy management systemsBidirectional energy flow via a single charging interfaceIt remains unclear how quickly Scania plans to commercialise the system. The company has not provided specific details about its market launch ambitions, merely stating in general terms that ‘vehicle-to-grid technology also has the potential to support faster adoption of battery electric transport.’Just a few days ago, Scania independently introduced new battery configurations for its electric trucks. Until now, the company has offered its electric trucks with a maximum of six battery packs. The manufacturer has now begun rolling out a seventh battery pack beneath the driver’s cab, stating that this will enable ranges of ‘far exceeding 800 km in individual cases.’ Additionally, the MCS port announced by Scania for 2025 is now available for order.scania.com