Building Permit Granted for Finland’s Largest Battery Energy Storage System in Mikkeli

Rivejä valkoisia energiakontteja

Neoen Renewables Finland Oy has obtained a building permit for a battery energy storage system in Visulahti area in Mikkeli, Finland. The planned battery energy storage system is long-duration and has a capacity of 120 megawatts. The system will consist of approximately 320 battery and transformer containers along with other equipment.

“The permit process was smooth, and the cooperation throughout the project with the City of Mikkeli has progressed excellently. Neoen’s 30-megawatt Yllikkälä Power Reserve in Lappeenranta, Finland, was the largest battery energy storage in Continental Europe upon its completion, and another battery energy storage with a capacity of 56 megawatts is currently under construction. We are delighted to start planning an even larger-scale battery energy storage system in Mikkeli,” says Project Manager Erika Forstén from Neoen Renewables Finland Oy.

The building permit issued by the City of Mikkeli became legally effective on April 18, 2024. The company leased a 6.3-hectare plot from the City of Mikkeli in September 2023.

“Green transitions projects are thriving in Mikkeli. For example several solar power projects are underway,” describes Program Director Jussi Heinimö from Mikkeli Development Miksei Ltd.

The national power grid with significant connection capacity runs through Mikkeli offering  good locations for electricity intensive operations.

Battery energy storage systems are used to balance the fluctuations in renewable energy production and regulate the frequency of the electricity grid to maintain its stability. Batteries serve as a fast-reacting backup power source.


For inquiries regarding Neoen, please contact Ville Perttula, Tekir Communications Agency, tel. +358 50 523 6494, ville.p@tekir.fi

Jussi Heinimö, Program Director, Mikkeli Development Miksei Ltd, tel. +358 40 544 0936, jussi.heinimo@mikseimikkeli.fi

About Neoen

Founded in 2008, Neoen is one of the world’s leading independent producers of exclusively renewable energy. With proven expertise in solar power, wind power and storage, the company plays an active role in the energy transition by producing and supplying competitive, green, local energy on four continents. After a six-fold increase in the last six years, its capacity in operation and under construction stands at 8.0 GW.

Neoen’s flagship operations are France’s most powerful solar farm (300 MWp) in Cestas, Finland’s largest wind farm (404 MW) in Mutkalampi, one of the world’s most competitive solar plants in Mexico (El Llano, 375 MWp) and two of the world’s most powerful large-scale storage plants, both in Australia: Hornsdale Power Reserve (150 MW/193.5 MWh storage capacity) and the Victorian Big Battery (300 MW/450 MWh).

A high-growth company, Neoen is targeting 10 GW in operation or under construction by the end of 2025. Neoen is listed in Compartment A of Euronext’s regulated market in Paris (ISIN code: FR0011675362, Ticker: NEOEN) and on the SBF 120 and CAC Mid 60 indexes.

For more information, please visit: www.neoen.com and finland.neoen.com

About Mikkeli Development Miksei Ltd

Through developing businesses, travel and business environment alike Mikkeli Development Miksei Ltdreinforces the attractiveness of the Mikkeli economic area by supporting 1200 companies each year. The company employs 40 experts in a variety of fields.​

The company implements the “Investment Promotion in South Savo” project, which aims to attract and promote investments in South Savo region.

For more information, please visit: mikseimikkeli.fi

Julkaistu: 25.04.2024