Battery storage: sourced Nordic projects in this sector, with a map.
Listings are compiled from public sources and are not endorsements or vetting. Rule summaries are not legal advice: always check the official source.
NorthWind Energystorage plans a 25 MW / 50 MWh battery store at Raistakka in Posio, in a wind-heavy area. Caruna has signed the 110 kV connection deal and will reinforce the Posio substation from 2026, with grid connection due in 2027 (Caruna, Sep 2025).
Alpiq's first battery plant, 30 MW / 36 MWh in Valkeakoski, has been running since 13 Oct 2025. Merus Power designed and built it, and it is the first in the Nordics to meet Fingrid's grid-forming requirements.
Savon Voima has ordered a 5 MW / 10 MWh black-start-capable battery next to the Juankoski hydropower plant in Kuopio. Merus Power supplies, installs and commissions it, with delivery in early 2027 (Mar 2026).
Exilion has contracted Merus Power for a turnkey 20 MW / 41 MWh battery at the existing Varevaara wind farm in Tervola, including a hybrid controller. Handover is planned for autumn 2027 (Jun 2026).
Solarigo Systems is adding batteries totalling 7 MW / 14 MWh to three operating solar parks in Sulkava (3 MW / 6 MWh), Juva and Hirvensalmi (2 MW / 4 MWh each). Foundations are done, and grid connection is targeted for early 2027 (Oct 2026).
A battery store of about 38 MW / 43 MWh, owned by a joint venture of an Ardian fund and Lappeenrannan Energia, entered market use in Lappeenranta on 15 May 2025. Merus Power was the EPC contractor on the delivery, worth about EUR 15 million.
Endra is building a hybrid park in Hanko on a former vehicle storage site: 35 MWp of solar plus a 5 MW / 10 MWh battery. Solarigo Systems is the EPC contractor, and completion is planned during 2028 (Sep 2026).
OX2 is building a 125 MW / 250 MWh battery at its Kannisto wind farm in Halsua, among its first BESS investments in Finland. Named subcontractors are Trina Storage, Enersense and Tamini Transformatori, and commercial operation is planned for 2028 (Feb 2026).
OX2 is building a 110 MW / 220 MWh battery at its Korkeamaa wind farm in Soini. Named subcontractors are Trina Storage, KSBR, NEPower and Multirel, and commercial operation is planned for 2028 (Feb 2026).
Rando Grid's battery park in Kuhmoinen, planned at 5 MW / 10 MWh in its final size, entered commercial use in January 2025, about seven months after the project began. Cactos supplied and operates the units.
wpd's first battery project worldwide, 30 MW / 60 MWh at Lotlax west of Vörå, sits beside the planned Söderskogen wind farm. Groundworks began in May 2026, Merus Power supplies the battery system, and operation is planned for summer 2027.
ewz Måkaknuten Vind has ordered an 11.3 MW / 22.6 MWh battery at the Måkaknuten wind farm outside Stavanger, described as Norway's largest wind-connected battery park. Soltech Energy Solutions designs, builds and commissions it and holds a 10-year O&M contract; Norsk ESS co-developed it (May 2026).
A 42 MWh battery park for the Hylte Paper mill was completed in Dec 2024 and entered trial operation. It helps the mill use its own generation, cut peaks and support the regional grid. Built by Soltech Energy Solutions.
CA Batteribalans ordered a 28 MWh battery park in Lerum for the ancillary services market, with commissioning expected in April 2025. Soltech Energy Solutions handles design, installation and commissioning (Nov 2024).
Falu Energi & Vatten's 12 MWh battery park in Falun went into operation in Dec 2024 to support the local grid and free capacity for new connections. Soltech Energy Solutions designed and built it.
Construction of an 18 MWh battery park for Nordic Solar began in Södertälje in July 2025. It is the company's first battery project in Sweden and will trade in ancillary services and on the spot market. Built by Soltech Energy Solutions.
The Port of Trelleborg has ordered a 4 MWh energy store to manage peaks when larger ships use onshore power, ahead of EU requirements. Takorama Elteknik (Soltech group) designs and installs it, with commissioning expected in 2026 (Jan 2026).
Volvo Group plans an energy park in Mariestad whose first stage is about 70 MW / 260 MWh of battery storage using Volvo Energy systems, expected to be operational in 2027. The site will also serve as a customer demonstration site near Volvo's planned battery cell plant (Sep 2026).
The 70 MW / 160 MWh Ånge BESS in SE2, owned by a Delta Capacity and Wood & Co. joint venture, started commercial operation in June 2026, 15 months after procurement began. Delta Capacity was EPC manager, with Sungrow (batteries), Stenger & Ibsen Construction (balance of plant) and Rejlers.
In Feb 2024 Ingrid Capacity and BW ESS started building storage at eight Swedish sites: Falköping, Karlskrona, Katrineholm, Mjölby, Sandviken, Vaggeryd, Värnamo and Västerås (8-20 MW each, 122 MW in total). This followed six sites started in 2023, bringing over 200 MW into construction.
Exilion has ordered a 30 MW / 66 MWh grid-forming battery in Kuortti, Mäntyharju, due for completion during 2026. Merus Power is the turnkey developer on the project, worth about EUR 17 million (Oct 2025).
Skarta's Isosuo solar park in Utajärvi, which has a 20 MW / 40 MWh battery, was inaugurated in Aug 2026 on a former peat area. NYAB Finland was the EPC contractor for both the solar park and the battery.
FRV and AmpTank Energy reached financial close on the 100 MW / 200 MWh SIMO battery near Fingrid's Simojoki substation. Phase 1 (30 MW / 60 MWh) was already trading, and phase 2 (70 MW / 140 MWh) was due for commissioning in Aug 2026 (Oct 2025).
GreenLab in Skive is hosting a 44 MWh battery developed by Eurowind Energy and BOS Power, integrated with the park's 84.8 MW wind and solar plant and its industries. It was expected to be operational by the end of 2025 (Oct 2025).
Nala Renewables energised its 50 MW / 100 MWh battery in Kauhava in Aug 2026, with commercial operation expected within months. Partners were KSBR, Sungrow and Ramboll.
Nala Renewables issued notice to proceed in Oct 2026 for its 125 MW / 250 MWh Vuolijoki battery. Despro is EPCM, Destia is the balance-of-plant contractor, Sungrow supplies the batteries and Rabobank provides long-term finance.
Mirova is investing alongside Ingrid Capacity in a ready-to-build 45 MW / 90 MWh battery in Pedersöre. Ingrid will develop, operate and optimise it and manage the EPC (Sep 2026).
Mirova is investing alongside Ingrid Capacity in a 100 MW / 200 MWh battery project in Vaggeryd (SE3), expected to reach ready-to-build status in 2027. Ingrid will develop, operate and optimise it (Sep 2026).
Ingrid's 100 MW / 200 MWh Horsaryd battery in Karlshamn (SE4) has a legally binding building permit. Construction is expected from 2026, with full operation planned for 2028 (Apr 2026).
Ingrid Capacity and the SEB Nordic Energy Fund, via Locus Energy, opened a 12 MW / 12 MWh battery store in Rättvik on 24 Sep 2025. It is run by Ingrid's trading platform.
Ingrid Capacity and Locus Energy are developing a 70 MW / 140 MWh battery in Nivala, Ingrid's first Finnish project and first two-hour system, set to go online in 2026 (Mar 2025).
A 24 MW battery in Gothenburg, owned by Ingrid and Locus Energy, takes part in Göteborg Energi Nät's local flexibility market Effekthandel Väst, which doubled to 70 MW in 2025 (Dec 2025).
European Energy grid-connected a 28 MW / 112 MWh battery at its Stouby solar park in July 2026. It developed and built the system in-house within a year.
European Energy added a 10 MW / 40 MWh battery to its 31 MW Agersted solar park, in operation since 2022, and grid-connected it in July 2026. The battery provides frequency regulation and balancing.
European Energy's 200 MWh battery at the Kvosted solar park has run since Dec 2025 and was inaugurated in Feb 2026. The company calls it Northern Europe's largest operating solar-plus-storage park.
EWII put a 30 MW / 43 MWh battery into operation at Hasle on Bornholm on 13 May 2025, then Denmark's largest. It supplies system services to Energinet.
Construction is under way on AKKU One, a standalone 125 MW / 300 MWh battery in Lapinlahti majority-owned by Covenergo, with commissioning targeted for Q4 2027. Delta Capacity is EPCM contractor (Sep 2026).
Delta Capacity and the Strioga Family Foundation are building the 125 MW / 300 MWh Karppio battery in Teuva, with commissioning planned for Q4 2027. Sungrow supplies the batteries, NEPower does the balance of plant and Despro provides owner's engineering (Sep 2026).
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