Are battery energy storage systems a key part of the Nordic energy transition?

Battery energy storage systems (BESS) continue to play a vital role in the Nordic energy transition. Based on Marsh's experience in advising BESS owners in the Nordics, cold climate challenges, ensuring safety, and optimizing spacing are key topics that are discussed for BESS development in the region.

Why is battery-based energy storage important in the Nordics?

The region is striving to become Europe’s clean energy hub and is gaining leadership in the green transition of industry. Battery-based energy storage is a vital addition to the Nordics' energy system to integrate an even higher share of renewable energy from abundant wind and hydropower.

How many battery-based energy storage systems are in the Nordics?

To date, more than 200 MW of battery-based energy storage systems are operational in the Nordics. In addition, recent announcements and projects under construction amount to more than 450 MW in Sweden and Finland combined, with the pipeline in Sweden accelerating and already accounting for more than two-thirds of the total.

What is a battery energy storage system?

Battery Energy Storage Systems are essential for improving grid reliability, particularly as renewable energy sources like solar and wind are often intermittent. BESS stores excess energy generated during favorable conditions and releases it during low generation periods, aiding in grid balancing and supporting renewable integration.

What is the largest energy storage park in the Nordic region?

Romina Pourmokhtari, Sweden’s Minister for Climate and Environment, officially inaugurated the largest energy storage park in the Nordic region. The initiative, led by Ingrid Capacity in collaboration with BW ESS, consists of 14 large-scale energy storage systems with a total capacity of 211 MW/211 MWh.

What is the largest battery energy storage system in France?

In August 2025, the largest battery energy storage system in France was energized at the port of Nantes-Saint-Nazaire.The Cheviré project was developed by British company Harmony Energy. The installation has a total power output of 100 MW and a capacity