France's TotalEnergies takes final investment decision on 100 MW / 200 MWh Dahlem battery

French energy giant TotalEnergies has taken the final investment decision for a 100 MW / 200 MWh battery storage project in Dahlem, North Rhine-Westphalia in Germany.

The battery is expected to begin commercial operations in the second half of 2026. TotalEnergies announced that Quadra Energy — a leading German renewable power aggregator it acquired last year — would market the energy stored in these batteries. 

In its press release, TotalEnergies said this was the first project it had sanctioned from the pipeline of Kyon Energy, the German battery storage system developer it acquired in February 2024. TotalEnergies also said it would use its battery affiliate Saft to supply the project (total investment cost estimated at above €75 million) with the latest lithium-iron-phosphate (LFP) batteries.

Stéphane Michel, SVP, Gas, Renewables & Power at TotalEnergies, said in the release: "This investment decision reflects the acceleration of our integrated development in the Germany electricity market, the largest in Europe. For the battery system design, we will leverage synergies between our electricity teams: Saft will supply the batteries, Kyon Energy will manage development, and Quadra Energy will market this new capacity."

TotalEnergies has acquired several German electricity players in recent times to accelerate its integrated development in the battery market. These include:

• NASH Renewables, acquired in October 2023, involved in optimizing the design and operating parameters of renewable projects;
• Quadra Energy, also acquired in October 2023, is among Germany's top 3 aggregators of renewable electricity production, boasting a "virtual power plant" totaling 9 GW;
• Kyon Energy, acquired in February 2024, is developing a 2 GW pipeline of battery storage systems in the country.