Osborne Clarke advises Chint Solar Europe on sale of 110 MW BESS portfolio to Flower

Osborne Clarke has provided legal advice to Chint Solar Europe, a leading European player in the development, financing, construction and operation of renewable energy projects, on the sale of a portfolio of seven ready-to-build Battery Energy Storage System (BESS) projects in Germany to energy-tech company Flower Infrastructure Technologies AB.

The portfolio has a total power output of 110 MW and a storage capacity of 333 MWh across seven municipalities in the federal states of Thuringia, Lower Saxony, Saxony-Anhalt, Saxony and Hesse. Under the agreement, Flower will hold, finance, operate and market the battery storage assets on its own balance sheet, while Chint will deliver the projects on a turnkey basis under an EPC contract and assume long-term operations and maintenance services. The projects, with individual sizes ranging from 6 MW to 48 MW, have storage durations of three to four hours and have successfully completed all essential development steps: all projects have secured grid connection points and the necessary permits, and commissioning is scheduled to take place successively over the course of 2027. The transaction marks another important milestone in Chint’s growing battery storage pipeline in Europe.

Osborne Clarke had already advised Chint Solar Europe in June 2026 on its first BESS portfolio transaction with technology and energy trading company Second Foundation. The renewed instruction in connection with the transaction with Flower underlines the parties’ joint track record in structuring complex storage portfolios as well as Osborne Clarke’s comprehensive expertise in battery storage, renewable energy and energy infrastructure.

“The combination of once again advising Chint Solar Europe, a broadly diversified portfolio of seven ready-to-build projects and the structured alignment of portfolio sale, EPC and O&M contracts makes this transaction another important reference project in the German BESS market,” said Dr Christoph Torwegge, Partner at Osborne Clarke. “The transaction shows how complex storage portfolios can be structured to be bankable in a dynamic flexibility market – and how international players such as Chint and Flower are jointly helping to accelerate the expansion of storage infrastructure in Germany.”

Comprehensive advice on portfolio sale, EPC and O&M contracts

Osborne Clarke advised Chint Solar Europe on all key legal aspects of the transaction. This included, in particular, advising on and negotiating the portfolio sale, the EPC contracts and the long-term operations and maintenance agreements. The focus was on designing a market-standard, bankable contractual framework, reflecting the specific requirements of large-scale storage projects in the regulated German energy market, as well as on interface issues between development, construction, operation and marketing of the assets.

The Osborne Clarke team was led by Dr Christoph Torwegge (Partner Lead) and Alexandra Abeln (Co-Lead) and also included Julian Tristram and Esther Erwin (both Corporate), as well as Georg Friedrich Höxter and Romeo Szejnmann (both Project Contracts).