13-megawatt facility in Brietlingen enhances grid stability and maximizes the use of renewable energy through intelligent storage technology and strategic financing
BRIETLINGEN, GERMANY – 20 NOVEMBER 2025
Return, Europe's leading independent provider of energy storage solutions, is implementing a 13 MW/29 MWh battery energy storage system (BESS) in Brietlingen, Lower Saxony, scheduled for completion by the end of 2026. The facility has reached financial close with support from Deutsche Anlagen-Leasing (DAL) and its financing partner Deutsche Leasing Finance. The investment illustrates how targeted financing enables intelligent, interconnected energy solutions that accelerate Europe's shift to renewable power.
"The Brietlingen facility shows the potential unlocked when smart storage technology is paired with forward-looking investment," says Sjoerd Bazen, Managing Director at Return. "DAL's support made this project possible, but its real impact lies in the way the storage units are networked and intelligently controlled within the grid. This ensures renewable energy is used where it delivers the highest value."
Return's approach extends far beyond standalone storage. The Brietlingen site forms part of a broader network that efficiently manages energy flows, reduces grid congestion and optimizes the integration of renewable resources. As a neutral operator, Return connects grid operators, energy producers, businesses and consumers helping ensure clean energy is reliably available.
Strategic financing as a driver of the energy transition
The financing arranged by DAL provided the capital required to bring the Brietlingen project to financial close.
"Battery energy storage systems are a key pillar of the energy transition: they stabilize the grid and enhance the profitability of renewable energy projects," said Dr. Peer Guenzel, Deputy Managing Director of DAL Deutsche Anlagen-Leasing and responsible for the Energy & Infrastructure division. "This deal confirms our commitment to the German market and highlights the partnership-driven model behind our business."
Strong location supported by strong technology partners
Located around 60 kilometres southeast of Hamburg, the Brietlingen site strengthens northern Germany's electricity grid and supports the integration of regional wind and solar generation. For implementation and long-term operation, Return collaborates with leading technology partners:
Maximum impact through multi-use optimization
The facility will operate under Return's multi-use optimization model, providing flexible services to grid operators and renewable energy producers. By intelligently controlling energy flows, the system reduces peak loads, increases grid stability, and ensures renewable power is used where it creates the greatest benefit.
