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Polarium and Kempower Enable Megawatt Charging at Alfredsson Transport’s Advanced Depot
Polarium is proud to play a key role in Sweden’s most advanced electric truck charging hub. At Alfredsson Transport’s new depot in Norrköping, Polarium’s 1.2 MW & 2,2MWh Battery Energy Storage System (BESS) works in combination with a 400 kWp solar park and Kempower’s cutting-edge charging technology to enable one of the first public megawatt charging sites for heavy-duty vehicles.
22nd September, 2025In collaboration with Kempower and Scania, the depot successfully demonstrated simultaneous high-power charging of two trucks – one using the new MCS megawatt standard and another via CCS – reaching a peak of 728 kW on a single vehicle. This milestone shows what’s possible when robust energy storage, renewable generation, and advanced charging technology come together.
With the EU targeting to reduce emissions from heavy-duty vehicles by 45% by 2030, compared to 2021 levels, the adoption of electric trucks and a sufficient infrastructure is critical.
Last-mile and mid-range trucks are already a reality in many places in Europe. Completing the MCS communications protocol ensures the compatibility of charging infrastructure and trucks and enables the electrification of the last and most challenging truck electrification segment, the long-haul trips, with the biggest charging needs and the shortest available charging windows.
Polarium’s BESS is helping to ensure that the depot can:
- Stabilize the grid connection – avoiding costly and time-consuming infrastructure upgrades.
- Lower operational costs – by storing energy when prices are low and supplying it during peak demand.
- Maximize renewable use – by integrating the on-site solar park and making clean energy available for charging, even when the sun isn’t shining.
- Guarantee reliable megawatt-level charging – ensuring trucks can recharge quickly during legally mandated rest breaks.
- Scale for the future – with a system that can grow as fleets electrify and energy needs increase.
Kempower’s distributed charging system makes this performance possible. With its dynamic load management and Energy Management Software (EMS), the solution ensures that available power – whether from the grid, solar park, or Polarium’s BESS – is always used in the most efficient way. This smart integration is what allowed Alfredsson Transport to deliver such high-power charging without overburdening the local grid.
For Alfredsson Transport, the benefits go even further. By combining energy storage, solar, and smart charging, the company has optimized its depot for dual use: powering its own growing fleet of electric trucks while also offering public charging access to other haulage companies. This forward-looking approach strengthens Alfredsson’s operations while contributing to the broader transition to zero-emission logistics – helping to make long-haul electric deliveries across the length of Sweden a reality.
The Alfredsson depot is a blueprint for what tomorrow’s logistics hubs can look like: fully electrified, renewable-integrated, and powered by intelligent energy storage and charging technologies.