Cooperation with Hansa Battery – green flexibility expands project pipeline by 500 MW
- green flexibility
- Nov 4
- 3 min read
green flexibility and Hansa Battery have signed a framework agreement for the acquisition of approximately 500 megawatts of large-scale battery storage projects. Under the agreement, Hansa Battery will contribute and continue developing the projects independently in close collaboration with green flexibility. green flexibility will secure financing for the grid connections, prepare project implementation, and subsequently take over construction and long-term operation of the systems.
The framework agreement covers five projects with a combined planned grid connection capacity of around 500 MW, located at several sites across Germany. The agreement defines the development phase by Hansa Battery up to the ready-to-build (RtB) stage, followed by acquisition and realization by green flexibility. This early and structured transition from development to implementation ensures smooth project delivery and operational readiness.
“We are deliberately investing in projects with confirmed grid reservations across all development stages,” says Christoph Lienert, Co-Founder and COO of green flexibility. “In doing so, we secure financing, contribute technical expertise where needed, and, as a future operator, help build trust with authorities and grid operators. With Hansa Battery, we’ve found an experienced partner whose approach perfectly aligns with ours.”
The partnership brings together complementary strengths: Hansa Battery’s development expertise and green flexibility’s operational experience. Together, the companies aim to accelerate the transition of projects from the ready-to-build phase to construction and operation. Financial and strategic support will include BKZ* prepayments as part of grid connection pre-financing.
“Hansa Battery develops projects to the ready-to-build stage and contributes them with confirmed grid reservations. This creates the foundation for moving suitable sites into implementation quickly and in an organized manner,” explains Lyubomir Petrov, Managing Director of Hansa Battery.
“With green flexibility, the financing and operational perspective is integrated early in the process. This helps us avoid redesigns, ensure transparency with authorities, and shorten the path from ready-to-build to commissioning,” adds Dr. Jakob Stachels, Managing Director of Hansa Battery.
The cooperation illustrates how green flexibility not only develops its own battery storage projects but also strategically invests in external developments. Through its dedicated partner program elevate, green flexibility continues to grow by combining capital, know-how, and implementation strength—advancing promising projects to ready-to-build status and beyond.
* BKZ (Baukostenzuschuss): A grid connection cost contribution paid to the grid operator to secure a connection point for a project. It serves as an advance payment covering part of the infrastructure and connection costs, ensuring binding grid reservation for the planned installation.
About Hansa Battery
Hansa Battery is a German project development company specializing in large-scale battery storage systems. The team brings over 40 years of combined experience in project development, financing, and implementation of renewable energy and infrastructure projects across Europe. Hansa Battery possesses deep expertise in project development, management, and regulatory aspects of large-scale battery storage.
Its core competencies include site development, permitting, grid connection, and financing. The company is pursuing a ready-to-build pipeline of 1.0 GW by 2030. With confirmed grid connection reservations exceeding 1.0 GW, Hansa Battery is well positioned in the German market to achieve its ambitious goals.www.hansa-battery.com
Photo of Lyubomir Petrov and Dr. Jakob Stachels, Managing Directors of Hansa Battery
Photo of Christoph Lienert, Co-Founder and COO of green flexibility
Photo of a green flexibility battery storage system in operation (Immenstadt, Allgäu)