Space constraints and operational continuity were key challenges in constructing EnBW’s new combined cycle gas turbine (CCGT) power plant in Altbach/Deizisau, Germany. Built adjacent to an existing coal-fired facility that forms part of Germany’s strategic power reserve, the project required meticulous coordination to avoid disrupting ongoing operations.
The new facility marks a major step toward decarbonization, capable of running on natural gas, hydrogen, or a mix of both. To manage the limited space and ensure smooth progress, Mammoet implemented a just-in-time delivery approach, supported by the construction of a temporary jetty that allowed the main crawler crane to operate continuously and efficiently.
With limited on-site storage, large components such as HRSG modules, turbines, and transformers were temporarily stored at Mammoet’s Schiedam yard in the Netherlands. From there, they were shipped to Altbach via specialized river vessels exactly when needed. “Using the existing jetty wasn’t feasible, as it handles all coal deliveries,” explained Andreas Franzke, Senior Sales Manager at Mammoet. “We therefore proposed a temporary jetty to streamline both transshipment and installation.”
Handling delicate HRSG modules weighing up to 250 tonnes required specialized rigging and precision lifting with two crawler cranes. Clearance from Stuttgart Airport was even needed for one critical lift due to the crane’s extended boom.
Further complexity arose during the installation of the 400MW gas turbine, where strand jacks were used to level the 350-tonne unit to exact tolerances.
From planning and logistics to engineering and execution, Mammoet’s coordinated approach ensured safe, efficient delivery in a highly constrained environment — showcasing the company’s ability to provide innovative, end-to-end lifting and transport solutions for complex energy projects.
