Swedish mobile power station BESS
Polar Bess: Innovative Energy Storage Solutions in Sweden | Polar Bess
Polar Bess specializes in advanced battery energy storage systems, enhancing grid resilience and promoting renewable energy. Established in 2024, we deliver scalable solutions for the

6 FAQs about [Swedish mobile power station BESS]
What is the largest Bess project in Sweden?
The 1-hour duration BESS project, called Isbillen Power Reserve, will be the largest in Sweden and the largest in the Nordics by megawatt (MW) power.
How many MW of Bess is coming to Sweden this year?
Some 200MW of grid-scale BESS is set to come online in Sweden this year according to Flextools, including a 20MW project deployed by Alfen at a wind farm operated by Vasa Vind, anno u nced last week. Energy-Storage.news’ publisher Solar Media will host the 9th annual Energy Storage Summit EU in London, 20-21 February 2024.
Where is the 10MW Bess project located?
The 10MW BESS will be strategically located in SE3, helping to stabilize the grid by providing ancillary and balancing services across frequency markets. “We are excited to deliver this project to our customer,” said Magnus Häggström, Chief Commercial Officer at Helios Nordic Energy.
What is the largest Bess project in the Nordics?
Image source: Ingrid Capacity. The scheme is described as the largest BESS project built in the Nordics and the first two-hour system developed by Ingrid Capacity. The two companies initiated the project in 2022. Construction works are expected to start in 2026, while the commissioning is planned for 2027.
What is isbillen Bess?
The Isbillen BESS will mainly provide ancillary services, specifically Frequency Containment Reserve, to Swedish transmission system operator (TSO) Svenska Kraftnät. It will be connected to the 130kV grid area operated by distribution system operator (DSO) E.ON Energidistribution.
Why did Bess invest in SE3?
This transaction supports the company’s ongoing ambition to accelerate the transition to renewable energy in the Nordic region. The 10MW BESS will be strategically located in SE3, helping to stabilize the grid by providing ancillary and balancing services across frequency markets.
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