A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting
Siting an offshore wind project is considered a complex planning problem with multiple interrelated objectives and constraints. Hence, compactness and contiguity are indispensable properties in spatial modeling for Renewable Energy Sources (RES) planning processes. The proposed methodology demonstra...
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2024-11-01
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| author | Loukas Katikas Themistoklis Kontos Panayiotis Dimitriadis Marinos Kavouras |
| author_facet | Loukas Katikas Themistoklis Kontos Panayiotis Dimitriadis Marinos Kavouras |
| author_sort | Loukas Katikas |
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| description | Siting an offshore wind project is considered a complex planning problem with multiple interrelated objectives and constraints. Hence, compactness and contiguity are indispensable properties in spatial modeling for Renewable Energy Sources (RES) planning processes. The proposed methodology demonstrates the development of a raster-based spatial optimization model for future Offshore Wind Farm (OWF) multi-objective site-prospecting in terms of the simulated Annual Energy Production (AEP), Wind Power Variability (WPV) and the Depth Profile (DP) towards an integer mathematical programming approach. Geographic Information Systems (GIS), statistical modeling, and spatial optimization techniques are fused as a unified framework that allows exploring rigorously and systematically multiple alternatives for OWF planning. The stochastic generation scheme uses a Generalized Hurst-Kolmogorov (GHK) process embedded in a Symmetric-Moving-Average (SMA) model, which is used for the simulation of a wind process, as extracted from the UERRA (MESCAN-SURFEX) reanalysis data. The generated AEP and WPV, along with the bathymetry raster surfaces, are then transferred into the multi-objective spatial optimization algorithm via the Gurobi optimizer. Using a weighted spatial optimization approach, considering and guaranteeing compactness and continuity of the optimal solutions, the final optimal areas (clusters) are extracted for the North and Central Aegean Sea. The optimal OWF clusters, show increased AEP and minimum WPV, particularly across offshore areas from the North-East Aegean (around Lemnos Island) to the Central Aegean Sea (Cyclades Islands). All areas have a Hurst parameter in the range of 0.55–0.63, indicating greater long-term positive autocorrelation in specific areas of the North Aegean Sea. |
| format | Article |
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| language | English |
| publishDate | 2024-11-01 |
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| series | ISPRS International Journal of Geo-Information |
| spelling | doaj-art-8eebf112e09b4f3e875843bb1ac4d8422025-08-20T02:28:14ZengMDPI AGISPRS International Journal of Geo-Information2220-99642024-11-01131140910.3390/ijgi13110409A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-ProspectingLoukas Katikas0Themistoklis Kontos1Panayiotis Dimitriadis2Marinos Kavouras3School of Rural and Surveying Engineering, National and Technical University of Athens, Zografou Campus, 9, Iroon Polytechniou str., 15780 Zografou, GreeceDepartment of Environment, University of the Aegean, University Hill, 81100 Mytilene, GreeceSchool of Civil Engineering, National and Technical University of Athens, Zografou Campus, 9, Iroon Polytechniou str., 15780 Zografou, GreeceSchool of Rural and Surveying Engineering, National and Technical University of Athens, Zografou Campus, 9, Iroon Polytechniou str., 15780 Zografou, GreeceSiting an offshore wind project is considered a complex planning problem with multiple interrelated objectives and constraints. Hence, compactness and contiguity are indispensable properties in spatial modeling for Renewable Energy Sources (RES) planning processes. The proposed methodology demonstrates the development of a raster-based spatial optimization model for future Offshore Wind Farm (OWF) multi-objective site-prospecting in terms of the simulated Annual Energy Production (AEP), Wind Power Variability (WPV) and the Depth Profile (DP) towards an integer mathematical programming approach. Geographic Information Systems (GIS), statistical modeling, and spatial optimization techniques are fused as a unified framework that allows exploring rigorously and systematically multiple alternatives for OWF planning. The stochastic generation scheme uses a Generalized Hurst-Kolmogorov (GHK) process embedded in a Symmetric-Moving-Average (SMA) model, which is used for the simulation of a wind process, as extracted from the UERRA (MESCAN-SURFEX) reanalysis data. The generated AEP and WPV, along with the bathymetry raster surfaces, are then transferred into the multi-objective spatial optimization algorithm via the Gurobi optimizer. Using a weighted spatial optimization approach, considering and guaranteeing compactness and continuity of the optimal solutions, the final optimal areas (clusters) are extracted for the North and Central Aegean Sea. The optimal OWF clusters, show increased AEP and minimum WPV, particularly across offshore areas from the North-East Aegean (around Lemnos Island) to the Central Aegean Sea (Cyclades Islands). All areas have a Hurst parameter in the range of 0.55–0.63, indicating greater long-term positive autocorrelation in specific areas of the North Aegean Sea.https://www.mdpi.com/2220-9964/13/11/409geographic information systems (GIS)spatial optimizationinteger Programming (IP)offshore wind energy (OWE)symmetric-moving average (SMA)stochastic simulation |
| spellingShingle | Loukas Katikas Themistoklis Kontos Panayiotis Dimitriadis Marinos Kavouras A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting ISPRS International Journal of Geo-Information geographic information systems (GIS) spatial optimization integer Programming (IP) offshore wind energy (OWE) symmetric-moving average (SMA) stochastic simulation |
| title | A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting |
| title_full | A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting |
| title_fullStr | A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting |
| title_full_unstemmed | A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting |
| title_short | A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting |
| title_sort | raster based multi objective spatial optimization framework for offshore wind farm site prospecting |
| topic | geographic information systems (GIS) spatial optimization integer Programming (IP) offshore wind energy (OWE) symmetric-moving average (SMA) stochastic simulation |
| url | https://www.mdpi.com/2220-9964/13/11/409 |
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