Norwegian state energy company, Equinor, and Belgium-based DEME Offshore, a marine and offshore engineering specialist, are studying the design options for floating concrete substructures to be used on the planned North Sea wind farm, Hywind Tampen.
The five-month study is part of the front end engineering and design (FEED) process prior to the final investment decision.
It involves assessing the design, construction and optimisation of eleven concrete substructures including secondary steel outfitting, mooring systems and project execution strategy. Hywind Tampen is itself a pioneering venture – it is expected to be the first offshore wind farm to power existing oil platforms. The facility will consist of eleven turbines, each of 8 MW, providing about 35% of the annual power demand of the Snorre and Gullfaks oil and gas platforms.
The move is part of Equinor’s wider drive to use sustainable electricity as a source of power for offshore energy facilities.