TotalEnergies and AllianzGI Partner on 800MW Battery Storage Expansion in Germany

TotalEnergies has entered a strategic partnership with Allianz Global Investors (AllianzGI) to accelerate the development of large-scale battery energy storage projects in Germany, marking a significant step in strengthening the country’s renewable energy infrastructure.

Under the agreement, AllianzGI will acquire a 50% stake in a portfolio of 11 battery storage projects currently under construction. The projects, with a combined capacity of nearly 800MW (789MW / 1,628MWh), are being developed by Kyon Energy, a subsidiary of TotalEnergies, and are expected to become fully operational by 2028. 

The partnership represents a total investment of approximately €500 million, with the majority of financing supported through debt. TotalEnergies will continue to operate the assets, while leveraging the collaboration to optimize capital allocation and scale its integrated power business. 

Battery storage is playing an increasingly critical role in supporting the expansion of renewable energy, particularly in markets like Germany where the share of wind and solar generation continues to grow. By providing flexibility and balancing supply and demand, these systems help stabilize the grid and enable greater penetration of clean energy sources.

Most of the projects will utilize advanced battery technologies supplied by Saft, another TotalEnergies subsidiary, reinforcing the company’s vertically integrated approach across the power value chain. 

The initiative highlights growing investor interest in energy storage infrastructure as a key enabler of the energy transition. It also reflects a broader trend toward partnerships between energy companies and institutional investors to fund large-scale clean energy assets.

As Germany continues to expand its renewable energy capacity, investments in battery storage are expected to play a vital role in ensuring grid reliability and supporting the shift toward a low-carbon energy system.