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Energy Storage

Thursday
05 Jun 2025

ECO STOR to Build 50MW Battery in Finland

05 Jun 2025  by renews   
ECO STOR, a Norwegian company, is developing a 50MW/1hr battery energy storage system (BESS) in central Finland near Uleåborg, following a final investment decision by its shareholders. The Isokangas project, located close to major wind generation zones and adjacent to a Fingrid substation connected to the 380km Aurora Line interconnector developed by Finnish and Swedish transmission system operators, began construction in 2025, with commissioning planned for 2026.

The project is fully funded and co-owned by ECO STOR, with Norway-based utility Å Energi as the largest shareholder, alongside investment firm Farvatn and Finnish energy storage company AmpTank. The facility will provide flexibility services to the Finnish grid and has the potential to expand to a 2hr system in the future. The land lease extends until 2039, with options for renewal.

Dr. Trygve Burchardt, CEO of ECO STOR, stated: “ECO STOR AS have experience from both behind the meter and grid scale BESS projects, and we are excited to apply this know-how to build and operate the Isokangas project.” He added: “The Finnish BESS market is expanding, supported by high expected growth of onshore wind and solar power.” ECO STOR will manage project delivery and core operations, supported by subcontractors.

The Isokangas project aligns with Finland’s growing renewable energy sector, particularly its onshore wind and solar developments, which are driving demand for energy storage solutions. ECO STOR specializes in battery storage systems, ranging from small-scale behind-the-meter setups to large utility projects, utilizing both new and second-life batteries.

In 2024, ECO STOR sold its German grid-scale BESS subsidiary and project pipeline to Brookfield-backed X-ELIO and Nature Infrastructure Capital, focusing its efforts on strategic markets like Finland. The Isokangas project is expected to enhance grid reliability and support the integration of renewable energy, contributing to Finland’s sustainable energy goals.

By leveraging its expertise and strategic location near key infrastructure, ECO STOR aims to strengthen the Finnish grid’s capacity to manage increasing renewable energy inputs, ensuring stability and flexibility for future energy demands.

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