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Photo: David Daum, Partner, Head Infrastructure Europe, Partners Group (© partners group)

Up to € 400 million for green flexibility battery storage systems

Photo: David Daum, Part­ner, Head Infra­struc­ture Europe, Part­ners Group (© part­ners group),
21. Janu­ary 2025

Baar-Zug (Switz­er­land) ‑Part­ners Group, one of the largest firms in the global private equity indus­try, has agreed to invest on behalf of its clients in green flexi­bi­lity, a deve­lo­per and opera­tor of large-scale battery energy storage systems (“BESS”) in Germany. Through Part­ners Group’s initial equity invest­ment of up to EUR 400 million and comple­men­tary debt finan­cing, green flexi­bi­lity will have more than EUR 1 billion available to invest in the energy tran­si­tion in Europe. green flexi­bi­lity specia­li­zes in the deve­lo­p­ment and opera­tion of large-scale battery storage systems that form the back­bone of a modern, flexi­ble energy infra­struc­ture in Europe. The expan­sion of inter­mit­tent rene­wa­ble energy sources and the decom­mis­sio­ning of base load capa­ci­ties in Germany are incre­asing fluc­tua­tions in elec­tri­city gene­ra­tion, leading to price vola­ti­lity and grid insta­bi­lity. BESS store surplus energy in times of high supply and release it again when needed. This helps to stabi­lize the grid, reduce power cuts and smooth energy costs for consu­mers and busi­nesses. The company aims to realize an exten­sive pipe­line of BESS projects and estab­lish itself as a leading inde­pen­dent flexi­bi­lity provi­der (“IFP”), which includes mone­tiz­ing storage capa­city through long-term contracts. By utili­zing advan­ced soft­ware, arti­fi­cial intel­li­gence and lever­aging strong local rela­ti­onships, Green Flexi­bi­lity also acce­le­ra­tes project deve­lo­p­ment and cons­truc­tion. Part­ners Group will work with green flexibility’s manage­ment team, which has exten­sive expe­ri­ence in successfully scaling energy busi­nesses, to build the company into a leading battery storage plat­form. The company is led by entre­pre­neur and indus­try expert Chris­toph Oster­mann, foun­der of sonnen, a global market leader in home storage systems. Chris­toph Oster­mann and the other foun­ders of the company have also deve­lo­ped and marke­ted one of Europe’s first virtual power plants. David Daum, Part­ner, Head Infra­struc­ture Europe, Part­ners Group (© part­ners group), says: “Green Flexi­bi­lity will play a key role in the energy tran­si­tion in Germany by faci­li­ta­ting the inte­gra­tion of inter­mit­tent rene­wa­ble energy into the country’s power grid. The company offers an exci­ting oppor­tu­nity to work with a highly expe­ri­en­ced and proven manage­ment team to build a battery storage plat­form in the largest energy and elec­tri­city market in Europe.” Igor Makar, Member of Manage­ment, Infra­struc­ture Europe, Part­ners Group, adds: “green flexi­bi­lity has strong infra­struc­ture creden­ti­als under­pin­ned by the indis­pensa­bi­lity of battery storage. 

We were also impres­sed by green flexibility’s inno­va­tive approach to the deve­lo­p­ment process, which sets the company apart from other market play­ers.” Chris­toph Oster­mann, Chief Execu­tive Offi­cer, green flexi­bi­lity, comm­ents: “BESS is widely regarded as the most flexi­ble tech­no­logy to provide a versa­tile and effi­ci­ent energy storage solu­tion, making it a key compo­nent in the moder­niza­tion of the energy grid. In addi­tion, the tech­no­logy can be deployed faster than other alter­na­ti­ves, which is criti­cal to meeting imme­diate grid stabi­lity requi­re­ments. As an expe­ri­en­ced infra­struc­ture inves­tor and busi­ness deve­lo­per, Part­ners Group is the right long-term part­ner for us as we look to grow the business.”

Part­ners Group’s infra­struc­ture busi­ness has USD 27 billion in assets under management.

Advi­sor Part­ners Group: A&O Shearman 

About Part­ners Group

Part­ners Group is one of the largest firms in the global private markets indus­try with appro­xi­m­ately 1,800 profes­sio­nals and over USD 150 billion in assets under manage­ment. The firm has invest­ment programs and custo­mi­zed manda­tes in private equity, private credit, infra­struc­ture, real estate and royal­ties. Part­ners Group, which origi­na­ted in Switz­er­land and has its main presence in the Ameri­cas in Colo­rado, is struc­tu­red differ­ently from the rest of the indus­try. https://www.partnersgroup.com/

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