Typical BESS setup
Overview

Mieczysławów is a 200 MW / 800 MWh battery energy storage project located in Western Poland. Acquired in 2025, the project is designed with a four-hour duration, will be among the country’s first utility-scale battery energy storage facilities, and will help strengthen grid reliability, enhance system flexibility, and support Poland’s growing renewable energy sector. Together with Kamionka, Mieczysławów represents an important step in our strategy to expand our presence in Poland and deliver the infrastructure needed to support the country’s evolving energy needs.

Our Sites & Facilities
Palencia, Spain Explore El Castre
Albacete, Spain Explore Lezuza
Albacete, Spain Explore Carcelén
Western Poland Explore Kamionka
Sevilla, Spain Explore Lebrija
Cáceres, Spain Explore La Zarza
Ávila, Spain Explore Langa
Córdoba, Spain Explore La Rambla
Valladolid, Spain Explore Ataquines
Albacete, Spain Explore Alposol
Albacete, Spain Explore Almansa
Taiwan Strait, Taiwan Explore Hai Long
Armour Township, Ontario, Canada Explore Burk’s Falls West
Rideau Lakes Township, Ontario, Canada Explore Crosby
Cochrane, Ontario, Canada Explore Empire
South Glengarry, Ontario, Canada Explore Glendale
Cochrane, Ontario, Canada Explore Long Lake
Rideau Lakes Township, Canada Explore McCann
Manitoulin Island, Ontario, Canada Explore McLean’s Mountain
Mont-Louis, Québec, Canada Explore Mont Louis
Tay Valley Township, Ontario, Canada Explore North Burgess
Rideau Lakes Township, Ontario, Canada Explore Rideau Lakes
Esterhazy, Saskatchewan, Canada Explore Spy Hill
Cypress County, Alberta, Canada Explore Jurassic BESS
North Battleford, Saskatchewan, Canada Explore North Battleford
Thorold, Ontario, Canada Explore Thorold
Kirkland Lake, Ontario, Canada Explore Kirkland Lake
Armour Township, Ontario, Canada Explore Burk’s Falls East
Prince Edward County, Ontario, Canada Explore Belleville South
Prince Edward County, Ontario, Canada Explore Belleville North
Cochrane, Ontario, Canada Explore Abitibi
North Sea, Germany Explore Nordsee One
North Sea, Netherlands Explore Gemini
Grand Bend, Ontario, Canada Explore Grand Bend
Broome County, New York, USA Explore Bluestone
Chautauqua County, New York, USA Explore Ball Hill
Haldimand County, Ontario, Canada Explore Oneida Energy Storage