OEG Renewables business Bluestream is to carry out a large remedial campaign on two offshore wind farms in the German part of the Southern North Sea.
The contract was awarded by Vattenfall and Stadtwerke Munchen on the DanTysk and Sandbank offshore wind farms located 90km off the coast of Schleswig-Holstein.
Bluestream will provide specialist subsea and topside services, using experience and capabilities in operating with divers and rope access specialists on offshore energy infrastructure.
The remedial campaign, which will run for around 35 days, includes the replacement of Impressed Current Cathodic Protection systems that prevent corrosion in the metal structure of the turbine foundation and tower, replacement of various reference cells, debris removal and sonar transponder exchanges.
Bluestream will charter the Go Electra multi-purpose service vessel with air dive spread and a Seaeye Tiger observation class ROV to deliver the scope.
The DanTysk and Sandbank wind farms, completed in 2014 and 2017 respectively, have a combined capacity of 576MW and cover an area of 150 square kilometres with 152 turbines in total.
Bluestream commercial manager Rutger Lieverse said: “We are delighted to be working with Vattenfall on this important remedial campaign delivering our specialist subsea and topside services, leveraging our significant experience managing inspection and maintenance campaigns in these types of shallow water offshore environments.”