Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/FBAF65D3-1510-469D-A16D-13E214A0C0F2 | ||
| Year | 2024 | ||
| Type of Item | Diploma Work | ||
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| Bibliographic Citation | Dimitrios Fotiou, "Techno-economic study of offshore wind farm. Case study of Heraklion Bay, Crete", Diploma Work, School of Chemical and Environmental Engineering, Technical University of Crete, Chania, Greece, 2024 https://doi.org/10.26233/heallink.tuc.99121 | ||
| Appears in Collections |
This thesis presents an extensive and multi-level techno-economic study in the field of offshore wind energy, with an application study in the Gulf of Heraklion, Crete. The thesis focuses on the evaluation of three different techno-economic scenarios for the installation and operation of wind turbines. In the first scenario, the Vestas V164-9.5MW fixed-bottom wind turbine model for depths up to 60 m and the Siemens Gamesa SG154-6MW floating-bottom wind turbine model for depths >60 m are analyzed. The second scenario considers the Vestas V236-15MW fixed-base wind turbine and the Siemens Gamesa SG154-6MW floating-base wind turbine. The third scenario focuses on the Siemens Gamesa SG167-8MW fixed base and the Siemens Gamesa SG154-6MW floating base. Through the use of WAsP, the energy efficiency of the wind turbines is analyzed under different wind conditions, while the technical specifications and the estimated equipment contribute to a global evaluation of the wind turbine performance. In addition, through cost analysis, such as Levelized Cost of Energy (LCOE), installation costs (CAPEX), operating costs (OPEX), decommissioning costs (DECEX), as well as indicators such as payback time, internal rate of return (IRR), net cash flow and net present value (NPV), a complete picture of the economic and time profile of the selected wind turbine types is obtained. The analysis reveals a range of values for energy, focusing on the average and highest value. This observation helps to determine the most ideal scenario for investment return. This paper, through its analytical approach, examines the factors that influence the efficiency, sustainability and competitiveness of offshore wind energy in this specific region, highlighting the opportunities and challenges that may arise from the adoption of this technology. Finally, it provides a strategic direction for decision-making at political, economic and environmental levels towards sustainable energy.
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