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RISS 인기검색어
- 검색키워드
- 저자 : William Luyties (검색결과 2 건)
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Commercially Viable Floating Wind for Offshore Korea
Steffen Shelley,Sung Youn Boo,Daejun Kim,William Luyties 한국해양환경·에너지학회 2017 한국해양환경·에너지학회 학술대회논문집 Vol.2017 No.10
The technology to engineer, fabricate and install floating wind exists and is feasible for all components, turbines or foundations. Applying lessons learned from offshore oil and gas projects with respect to engineering execution options, competitive supply and reduction in life cycle costs makes offshore floating wind a commercially viable energy supply in region with moderate to high electricity prices or in regions that have other geographical or resource constraints. This paper examines the case for a 200MW wind farm, located 11km off the south-east coast of Korea at a water depth of 100m, with two different sizes of floating wind turbine units: 3MW and 5MW and considering a Y-Wind semi-submersible configuration for the turbine foundations. The Levelized Cost of Energy (LCoE) is calculated for each configuration and compared against existing electricity prices. The results suggest that a 5MW wind farm with Y-Wind foundations will have an LCoE value of between $0.102 to $0.142/kWh, as compared to an LCoE value of $0.117/kWh for the current Korea residential electricity price. For a 3MW wind farm, the range in LCoE values is $0.114 to $0.154/kWh. For a small premium, offshore floating wind developments can take advantage of local sourced turbines, providing additional economic stimulus to the Korean economy. Additional socio-economic benefits are discussed that can help close any gaps between the LCoE of a floating wind development and other new power generation options. The successful implementation of offshore floating wind is no longer an engineering problem. The challenge is to develop and implement the business plans necessary to achieve the benefits of floating offshore wind energy, namely, diversity of energy supply, access to large amounts of energy where needed, low carbon technology and of course, lower total energy costs.
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Levelized Cost of Energy for a 200 MW Floating Wind Farm with Variance Analysis
Steffen Shelley,Sung Youn Boo(부성윤),William Luyties 한국해양환경·에너지학회 2018 한국해양환경·에너지학회 학술대회논문집 Vol.2018 No.11
The technology to engineer, fabricate and install floating wind exists and is feasible for all components, turbines or foundation. Applying lessons learned from offshore oil and gas projects with respect to engineering execution options, competitive supply and reduction in life cycle costs makes offshore floating wind a commercially viable energy supply in regions with moderate to high electricity prices or in regions that have other geographical or resource constraints to bringing additional energy supply on-line. For this study, a 200 MW floating wind farm located 50 km SE off the coast of Ulsan City is considered. The considered farm consists of 40 units of Y-Wind semi type floating platform with 5 MW turbine. The Levelized Cost of Energy (LCoE) of the farm is calculated according to the U.S. NREL method. The LCoE is also compared against existing electricity prices of Korea to assess project feasibility. The results indicate that a 200MW wind farm with Y-Wind foundations will have an LCoE value of around $0.162 / kWh, as compared to an LCoE value of $0.114 / kWH for the current Korea residential electricity price. Several LCoE factors are then varied to determine the sensitivity of LCoE to those factors and to identify which factors are critical to control and reduce in order to bring the wind farm cost to be competitive against existing electricity prices in Korea. Additional socio-economic benefits are discussed that can justify the LCoE of a floating wind development in markets with low electricity prices, such as in Korea. The successful implementation of offshore floating wind requires developing and implementing business, engineering and execution strategies and plans in a careful manner in order to achieve the benefits of floating offshore wind energy, namely, diversity and security of energy supply, access to large amounts of energy where needed, low carbon technology and of course, lower total energy costs.
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