Swiss energy group Alpiq has acquired a 103.5-megawatt battery storage facility in Bollingstedt, northern Germany, marking its third operational project of this kind in Europe. The facility, with a storage capacity of 238 megawatt-hours, entered service in June 2025, according to an Alpiq statement issued Tuesday.
The Bollingstedt installation is currently Alpiq’s largest operational battery storage project, surpassing two existing facilities in France and Finland. The company also disclosed that additional storage projects totaling more than 250 megawatts are under construction or nearing completion, while further developments are underway in Italy and Switzerland.
Financial terms of the acquisition were not disclosed by Alpiq or the seller, Eco Stor. The expansion aligns with the company’s strategy to diversify its energy infrastructure amid rising demand for grid stability and renewable energy integration across Europe.













