Deutsche Windtechnik has won a tender to provide operation and maintenance services for two years at the 288MW each DanTysk and Sandbank offshore wind farms in the German North Sea.
DanTysk (pictured) and Sandbank are owned by Vattenfall (51%) and Stadtwerke Munchen (49%).
The new cooperation agreement builds upon the long-standing collaboration and, for the first time, will now also include maintenance and corrective maintenance of various items for a total of 152 Siemens Gamesa turbines – 80 3.6MW units at DanTysk and 72 4.0MW machines at Sandbank.
The agreement also covers the maintenance of the transition pieces, the lifts and the cranes, as well as inspections at both wind farms.
The agreement also has an extension option.
Maintenance work will start in April from the base port in Esbjerg, Denmark.
Service teams will be transported to the wind farms, which are located approximately 70km and 90km west of Sylt, using a service operation vessel.
In order to further minimise the logistics and time needed to carry out the work, the service technicians also use the offshore accommodation platform located at the DanTysk wind farm.
Vattenfall head of operations Nordic and Germany Allan Overbeck said: “We were looking for a competent, flexible service partner to work with at the DanTysk and Sandbank wind farms.
“Deutsche Windtechnik provides all of the necessary services from a single source and has significant experience in the maintenance of Siemens turbines. This is an excellent basis for maintaining optimal availability at both wind farms.”
Deutsche Windtechnik director Matthias Brandt said: “We are very pleased that we will now be working together even more closely and that we are being entrusted with the maintenance of the Siemens G4 platform turbines.
“In 2019 at the Riffgat wind farm, we became the first independent service provider to take on the offshore maintenance for Siemens SWT-3.6 systems.
“The experience that we gained there and our generally high level of technical competence, will now be of benefit to us in providing turbine maintenance at the DanTysk and Sandbank offshore wind farms.”