Sweden BESS: SENS secures land for 40MW, Alfen deploying 20MW at wind plant

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In a double whammy of Sweden BESS market news, developer SENS has secured the land for a 40MW project while system integrator Alfen will deploy a 20MW system at a wind farm.

Netherlands-headquartered Alfen will provide its TheBattery Elements grid-scale battery energy storage system (BESS) product for a wind farm operated by Vasa Vind. Alfen didn’t reveal the size in MWh capacity for the BESS which it will design, engineer, install and commission before the end of 2024, and will also provide long-term servicing.

The BESS will share an interconnection with the wind farm and increase stability both locally and nationally through providing ancillary services such as fast frequency reserve (FFR), while also being able to ‘black start’ the wind farm if there is a power outage or grid failure.

Energy-Storage.news last week spoke to flexibility services provider Flextools (Premium access) about upcoming changes to Sweden’s flexibility services market (which includes ancillary services) as well as the energy storage market more generally, where 200MW of BESS is expected to come online in 2024.

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Very high ancillary service prices in the Nordics have been driving the energy storage market, with more wind and solar coming online and hydropower plants – the historic provider – re-assessing their provision of these fast-acting services.

The ancillary service markets are not expected to saturate for several years, at least in Sweden, meaning most projects deployed in the country are still only around 1-hour duration.

Looking further ahead, developer Sustainable Energy Solutions Sweden Holding AB (SENS) has secured a land lease agreement for a BESS project outside the city of Eskilstuna, with planned power of 40MW. SENS is one of the most active developers in the Swedish market, with a 550MW portfolio of solar and BESS projects including 40MW and 50MW projects it secured land for late last year.

The firm said construction on its projects generally starts 10-12 months after the lease agreement is signed, meaning construction could start as early as end of the year.

Energy-Storage.news’ publisher Solar Media will host the 9th annual Energy Storage Summit EU in London, 20-21 February 2024. This year it is moving to a larger venue, bringing together Europe’s leading investors, policymakers, developers, utilities, energy buyers and service providers all in one place. Visit the official site for more info.

3 November 2026
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