Ardian enlists Merus Power for 40MWh Finland BESS

LinkedIn
Twitter
Reddit
Facebook
Email

Global private equity firm Ardian has enlisted power solutions firm Merus Power for its first BESS project, a 38MW/40MWh system in Finland.

Finland-headquartered Merus Power has signed a contract for the BESS technology order with a joint venture entity comprised of local municipal energy company Lappeenrannan Energia Oy and an Ardian-managed fund, Ardian Clean Energy Evergreen Fund (ACEEF).

The project will be deployed in Lappeenranta, southern Finland, near Lappeenrannan Energia’s Mertaniemi gas power plant and will be completed by Spring 2025.

Merus Power said its ‘share of the investment’ in the project totals €15 million (US$16 million), which includes the delivery, testing and commissioning of the BESS. The total investment is larger, including locally built infrastructure and a long-term maintenance contract for the project, the latter also provided by Merus Power.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

In an interview at Solar Media’s Energy Storage Summit EU in London last year, Merus Power told Energy-Storage.news how additional wind capacity and the limitations of pumped hydro energy storage (PHES) were driving the energy storage market in Finland. Like in many markets, high ancillary service prices have driven the business case of large-scale projects.

But, new rules around state of charge (SOC) and more energy trading opportunities have opened up the business case to 2-hour systems, including one in Finland independent power producer (IPP) Neoen is building which is the largest under-construction in the Nordics at 112.9MWh, also near Lappeenranta.

Last week saw Utility Helen launch a 40MW BESS project for a 2025 commissioning, in Nurmijärvi.

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.

Read Next

May 21, 2026
Singapore-based Equis has launched GreenPoint Energy, a wholly owned subsidiary consolidating its Australian renewable energy and battery storage operations under a dedicated platform with a 2.5GW portfolio of 12 battery energy storage systems (BESS) and wind projects across every National Energy Market (NEM)-connected state.
May 19, 2026
Lenders are increasingly willing to back large-scale BESS projects in Germany that don’t have any contracted revenues, although that merchant risk is priced in to structures, an executive at Aquila Clean Energy EMEA said.
May 12, 2026
BayWa r.e. will manage and maintain Germany’s largest operational BESS when it comes online later this year, while Terra One has started building a smaller project in the same state. 
Premium
May 11, 2026
The US clean energy manufacturing industry is starting to undergo a wholesale restructuring and recapitalisation as companies look to reduce their exposure to numerous risks, including FEOC. 
Premium
May 6, 2026
We catch up with James Mills, managing director of UK BESS investor Adaptogen Capital, about UK market dynamics, its expansion into Europe, and BESS capex in 2026 and beyond.