- Sungrow installed a 60 MWh battery energy storage system near Finland’s Arctic Circle to stabilise the local power grid.
- The system uses liquid-cooled lithium-iron-phosphate batteries designed for harsh, cold climates.
- This project supports Finland’s shift to more renewable energy by improving grid reliability and resilience.
Chinese energy company Sungrow Power Supply Co. Ltd installed a 60 MWh battery energy storage system (BESS) in Simo, Finland. The site lies less than 100 kilometres from the Arctic Circle, making this project among the world’s northernmost energy storage installations. Sungrow developed it with the joint venture FRV AmpTank. The company announced the completion on May 27.
The system includes 26 PowerTitan containers made by Sungrow. These containers deliver a total output of 30 MW and a storage capacity of 60 MWh. The storage facility stabilises the local power grid. Finland is increasing its use of renewable energy sources such as wind and solar power. Energy storage helps manage the intermittent nature of these renewables.
Sungrow’s PowerTitan system uses lithium-iron phosphate battery technology. It features a liquid circulation cooling system. This system maintains stable battery performance in harsh weather conditions. It also reduces maintenance needs. Workers install the batteries in 20-foot containers pre-assembled at the factory. This design simplifies transport and on-site installation.
The compact containers allow engineers to stack units back-to-back. This setup does not reduce performance. The modular design maximises technical reliability and limits the need for frequent on-site repairs. These features prove crucial for operations in remote, cold environments near the Arctic Circle.
Hannu Koivusalo, Chairman of the AmpTank joint venture, highlighted the key reasons for choosing Sungrow. “We selected Sungrow for two main reasons: technical reliability and the guarantee of long-term support,” he said. He added that Sungrow’s maintenance and service commitments influenced their decision.
Henry Särkisilta, Key Account Manager at Sungrow Finland, described the project’s technical challenges. He emphasised how the system adapts to demanding environmental conditions and praised the local team’s role in installing and commissioning the infrastructure.
The Simo project forms part of Finland’s broader strategy to increase grid stability. As the country adds more renewable energy, energy storage plays an essential role. Batteries store excess power when generation peaks and release it when demand rises. This process balances supply and demand on the grid.
Energy storage also strengthens grid resilience during extreme weather. Batteries must perform reliably in cold climates. Sungrow’s liquid-cooled BESS design suits these conditions well. The system’s robust design ensures consistent power output despite low temperatures.
This installation marks a significant step for Finland’s energy transition. It strengthens the local power grid near the Arctic Circle and proves that advanced battery technology can operate in extreme climates.
As renewable energy capacity grows, stakeholders will need more large-scale battery systems. Finland’s example shows the value of strategic energy storage solutions. The collaboration between Sungrow and AmpTank highlights international cooperation in the renewable sector.
Sungrow’s 60 MWh battery system in Simo helps Finland maintain a stable and reliable power supply. The project supports the country’s goal to increase renewable energy use and showcases innovative technology designed for harsh northern environments. This milestone signals progress in integrating clean energy with modern grid infrastructure.