The challenges in installation of offshore wind farms, A case of Lillgrund and Anholt wind farms
Examensarbete för masterexamen
Design and construction project management (MPDCM), MSc
HABAKURAMA, ISSA IBRAHIM
Wind energy is one of the rapidly growing sources of energy due low emissions resulting from its use. The energy can be harnessed both onshore and offshore. There is however, a growing interest in developing offshore wind resources owing in part to the large energy resources available offshore and availability of development space. Offshore wind energy is however more expensive than other energy sources due to the large capital expended during wind farm development. The construction of offshore wind farm can either be successful or unsuccessful since it encounters many challenges throughout its construction processes. Installation of offshore wind turbines is one process among others in wind farm construction and it is conducted under several phases. The aim of this thesis was to identify the constraints and challenges encountered during the installation phase of offshore wind turbines with specific focus on the Baltic Sea region. Offshore wind farm installation was considered as operation. Consequently the theories on operations management, operations strategy, supply chain as well concepts on offshore windfarm development were used for this study. A qualitative approach was applied for the research and data was collected from six interviews conducted with professionals that were involved in installation of Anholt and Lillgrund offshore wind farms. The analysis of collected data showed that installation challenges exist and can either be due to nature such as sea bed and weather conditions or technical issues related to equipment, planning, technology and working methodology. In attempts to increase power generation wind turbine components are becoming bigger and heavier and the wind farms increasingly being located further from shore. As the components size and distance from shore increase the installation challenges also increase. Therefore, developers and contractors have to continuously develop processes and equipment to overcome the expected challenges.
Samhällsbyggnadsteknik , Civil Engineering