Several energy system scenarios towards 2050 for the North Sea region are analysed. With focus on offshore wind, the impacts of meshed offshore grid and sector coupling are studied. The results show that the introduction of a meshed grid can increase offshore wind installations by around 10 GW towards 2050. However, sector coupling is expected to increase offshore wind installations by tens of GW. In addition, sector coupling can significantly decrease the level of offshore wind curtailment.

Wind power ramps are import characteristics for planning and integration of wind power production into electricity. We present a new but straightforward approach to detect wind power ramps duration and intensity. The algorithm classifies the temporal wind power production into up, down, and no-ramps. This research article is helpful for the wind energy community that presents a holistic approach to detect wind power ramps duration and intensity.

One particular problem with structure operating in seas is the so-called fatigue phenomena. Cyclic loads imposed by waves and winds can cause structural failure after a number of cycles. The tradition method have some limitations. This paper presents a developed design framework based on Fracture Mechanics for offshore wind turbine support structures which enables the design engineer to make most of available inspection capabilities and optimise the design and inspection, simultaneously.