A trio of battery storage news announcements from the buoyant Nordic market, including projects in Finland and Sweden.
Delta Capacity and partners close financing on two Finland projects
Switzerland-headquartered developer Delta Capacity and its partners have closed financing for two projects in Finland totalling 250MW output and 600MWh capacity.
They include the 125MW/300MWh AKKU One battery energy storage system (BESS) project in Lapinlahti, northern Finland, which Delta Capacity is developing with Czech renewable energy services provider Covenergo.
The pair bought AKKU One at the ready-to-build (RTB) stage from Helios Nordic Energy. Commissioning is targeted for the final quarter of 2027
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Construction of AKKU One began in September. Sungrow will supply its BESS equipment under a 1GWh framework deal signed earlier this year with Delta Capacity.
The other project, Karrpio BESS, is also 125MW/300MWh which Delta Capacity acquired at RTB stage together with investor Strioga Family Foundation in July. Karrpio BESS is located in Teuva, around 370km northwest of the capital Helsinki.
Bank Société Générale acted as sole lender to both projects while Finnish state-owned financing company Finnvera provided a counter-guarantee to support one of the Société Générale facilities. Delta Capacity has entered partial tolling deals with UK energy company Centrica for route-to-market (RTM) optimisation. Delta Capacity announced the toll for Karrpio in early September, and the toll for AKKU One about a month later.
That builds on a relationship with Centrica Energy that began with the optimisation of a 70MW/160MWh BESS project in Ånge, Sweden. The project, in the SE2 electricity market bidding zone, was developed by Ånge Storage Solutions, a joint venture (JV) between Delta Capacity and Czechia-headquartered investment group Wood & Co.
The Ånge project was the largest BESS in the Nordics when it went into operation in June. It was acquired from UK developer RES Group, again as a RTB project, in early 2025.
Ingrid Capacity, Alpiq ‘explore long-term offtake structures’
Sweden-headquartered BESS development platform Ingrid Capacity and major Swiss power firm Alpiq have signed a framework deal to “explore long-term offtake structures” for BESS projects.
Both companies are already active in developing and bringing online BESS assets in the Nordic market. The new agreement, announced yesterday, sees the pair evaluating offtakes for a portfolio of “up to 500MW,” which will be “primarily in the Nordics.”
Ingrid Capacity and Alpiq already have an existing relationship via Ingrid’s 45MW/90MWh Pedersöre project in Finland. The project was part of a portfolio invested in by Mirova, a French investor and affiliate of Natixis Investment Managers. Mirova invested €65 million into Pedersöre and Vaggeryd, a 100MW/200MWh project in Sweden, in September.
Recent big news for each company includes Ingrid Capacity’s receipt of construction permits in Spring for Vaggeryd and Horsaryd, a 100MW/200MWh BESS. Both are in Sweden’s SE4 bidding zone, and the Vaggeryd project’s application allows the developer to reapply for an expansion to 400MWh. As things stand, this would make it Sweden’s first 4-hour duration large-scale BESS.
Alpiq, meanwhile, completed the majority acquisition of UK developer Harmony Energy from Harmony Energy Income Trust in July, followed by the announcement of a planned 1.2GWh BESS project in Switzerland a couple of weeks later.
Romania’s Monsson invests in 60MWh Sweden project with ‘95% EU-made components’
Monsson, a large-scale renewable energy project developer and independent power producer (IPP) based in Bucharest, Romania, has made its first investment into Sweden’s energy storage market.
The company announced earlier this week (27 October) that a launch event had been held for the 30MW/60MWh (2-hour duration) Eskilstuna Power Reserve, with invited guests including Daniel Ioniță, Romania’s ambassador to Sweden.
“This facility is Romanian expertise at work in Sweden: designed, built and operated by Romanian professionals, with technology developed at home and applied here,” Ioniță said.
“With over 95% of its components manufactured in European Union (EU) Member States, it is also a good example of how European strategic autonomy is built in practice.”
Monsson Group has developed an integrated BESS solution with two other Romanian partners, inaugurating a 6MW/24MWh project in Constanta County, Romania, in 2024. The project used a BESS unit from system integrator Prime Batteries Technology, which was designed to Monsson’s specifications and components developed in-house at Monsson, including its energy management system (EMS) software.
ESN Premium spoke with Monsson’s head of M&A, Sebastian Enache, and energy storage project manager, Mihaela Popescu, in May 2024, hearing that the company designed its own energy storage solution after finding a lack of suitable products on the market.
“Through this 30MW/60MWh project, we are bringing our energy storage technology and expertise to Sweden, with the aim of contributing to grid flexibility and stability. Commissioning activities are finished, and commercial operation is scheduled for November 2026,” Enache said about Eskilstuna Power Reserve yesterday.
