40 kW in. 400 kW out. How is that possible?
At a construction site near Varmen fire station in Stavanger, Bjelland AS charges their electric construction machines at full power – even on a weak power grid. The key is Thor, a Norwegian-developed battery solution that acts as a power booster between the grid and the machines.
Power Boosting in Practice
Thor is connected to the local power grid and charges its own battery with available power – in this case around 40 kW. However, when the electric excavator needs a refill, Thor delivers a full 400 kW output.
In other words: ten times more power than it draws from the grid.
This is possible because Thor functions as a power booster – a mobile energy buffer that evens out the difference between available grid capacity and actual need. The solution makes it possible to fast-charge heavy equipment even where the grid is weak.
The Result
- Fast charging of electric machines, regardless of grid capacity
- Continuous operation without unnecessary stops
- Emission-free construction site without the need for diesel generators
A Green Role Model in Stavanger
The project with Bjelland AS demonstrates how battery technology can provide the construction industry with full electric flexibility – without the need to expand the power grid or use fossil fuel aids.
A big thank you to the innovative team at Bjelland AS for showing the way in the green transition.
Thor is not just a battery. It’s an enabler for emission-free and efficient construction operations.