German nuclear plant removes 1,200-ton generators without disassembly

The Unterweser nuclear power plant in Germany has successfully removed four massive steam generators, each weighing approximately 300 tons and standing 20 meters tall, using an innovative heavy lift system without disassembly. Operated by PreussenElektra, the plant was notable for holding world records in power generation before its shutdown in 2011 as part of Germany’s nuclear phase-out. The steam generators were lifted out with precision and high safety standards using Mammoet’s DHS-500 handling system, which allowed for efficient removal by combining with existing cranes and hydraulic skidding, avoiding more time-consuming transport methods. Following removal, the steam generators are scheduled to be shipped to Cyclife in Sweden in July for on-site dismantling and subsequent melting. PreussenElektra is also managing the decommissioning of several other German nuclear plants and has contracted Cyclife for dismantling 16 steam generators across multiple sites. The successful use of the DHS-500 system at Unterweser, building on prior experience