Germans target grid link speed
Report says cost of offshore HVDC connections could be cut by 30%
HVDC grid connections in the German North Sea could be planned and built almost two years faster than is currently the case, according to a new report commissioned by Germany’s offshore wind industry.
The report, produced for Germany’s Offshore Wind Foundation and 17 other industry players, said technical innovations could also help cut costs by up to 30%.
It said a streamlined planning and approval process could save as much as nine months on the current up to 60-month timeline.
The 12-month tendering process could be shortened by as much as two months, followed by 48 months of construction and commissioning instead of the 60 months presently envisaged.
The main cost reduction factors are more flexible rules for technological concepts, capacity, and operating voltage, the authors said.
While more competition and transparency in the tendering process could also lead to cost reductions and save time, they added.
The report also said the application of a dynamic security assessment could improve integration of offshore wind power to the grid, leading to less downtime resulting from grid overload.
Image: Riffgat offshore wind farm in the German North Sea (EWE)