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Frontiers of Earth Science

ISSN 2095-0195

ISSN 2095-0209(Online)

CN 11-5982/P

Postal Subscription Code 80-963

2018 Impact Factor: 1.205

Front. Earth Sci.    2019, Vol. 13 Issue (1) : 132-150    https://doi.org/10.1007/s11707-018-0699-7
RESEARCH ARTICLE
Onshore-offshore wind energy resource evaluation based on synergetic use of multiple satellite data and meteorological stations in Jiangsu Province, China
Xianglin WEI1,2, Yuewei DUAN3, Yongxue LIU1,2,4(), Song JIN1, Chao SUN1
1. Department of Geographic Information Science, Nanjing University, Nanjing 210023, China
2. Key Laboratory of Coastal Zone Development and Protection, Ministry of Land and Resources of China, Nanjing 210023, China
3. Yunnan Transportation Planning and Design Institute, Kunming 650200,?China
4. Jiangsu?Center?for?Collaborative?Innovation?in?Geographical?Information?Resource?Development?and?Application,?Nanjing?210023,?China
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Abstract

The demand for efficient and cost-effective renewable energy is increasing as traditional sources of energy such as oil, coal, and natural gas, can no longer satisfy growing global energy demands. Among renewable energies, wind energy is the most prominent due to its low, manageable impacts on the local environment. Based on meteorological data from 2006 to 2014 and multi-source satellite data (i.e., Advanced Scatterometer, Quick Scatterometer, and Windsat) from 1999 to 2015, an assessment of the onshore and offshore wind energy potential in Jiangsu Province was performed by calculating the average wind speed, average wind direction, wind power density, and annual energy production (AEP). Results show that Jiangsu has abundant wind energy resources, which increase from inland to coastal areas. In onshore areas, wind power density is predominantly less than 200 W/m2, while in offshore areas, wind power density is concentrates in the range of 328–500 W/m2. Onshore areas comprise more than 13,573.24 km2, mainly located in eastern coastal regions with good wind farm potential. The total wind power capacity in onshore areas could be as much as 2.06 × 105 GWh. Meanwhile, offshore wind power generation in Jiangsu Province is calculated to reach 2 × 106 GWh, which is approximately four times the electricity demand of the entire Jiangsu Province. This study validates the effective application of Advanced Scatterometer, Quick Scatterometer, and Windsat data to coastal wind energy monitoring in Jiangsu. Moreover, the methodology used in this study can be effectively applied to other similar coastal zones.

Keywords wind energy resource      wind power density      ASCAT      QuikSCAT      Windsat     
Corresponding Author(s): Yongxue LIU   
Just Accepted Date: 10 April 2018   Online First Date: 21 May 2018    Issue Date: 25 January 2019
 Cite this article:   
Xianglin WEI,Yuewei DUAN,Yongxue LIU, et al. Onshore-offshore wind energy resource evaluation based on synergetic use of multiple satellite data and meteorological stations in Jiangsu Province, China[J]. Front. Earth Sci., 2019, 13(1): 132-150.
 URL:  
https://academic.hep.com.cn/fesci/EN/10.1007/s11707-018-0699-7
https://academic.hep.com.cn/fesci/EN/Y2019/V13/I1/132
Fig.1  Geographical location of the study area and the distribution of meteorological observation stations and QuikSCAT–data.
Fig.2  Conceptual diagram of the basic steps of the method used in this study. (a) Applicability analysis of satellite data in Jiangsu Province and data correction; (b) onshore-offshore wind energy resource assessment for Jiangsu Province; and (c) onshore-offshore wind power potential assessment for Jiangsu Province.
Meteorological stationQuikSCAT
(2007)
QuikSCAT
(2008)
ASCAT
(2008)
Windsat
(2008)
M8002194224186166
M8003342311193158
M8004216254177168
M8005276293212--
M800878456319--
Total110615381087492
Tab.1  Comparison of satellite data used to validate ocean meteorological observations
Fig.3  Correlation analysis of wind speed between QuikSCAT data and ocean meteorological observation data for (a)–(e) the different observation stations and (f) all stations used in this study.
Fig.4  Correlation analysis of wind direction between QuikSCAT data and ocean meteorological observation data for (a)–(e) the different observation stations and (f) all stations used in this study.
Fig.5  Residual error distribution (Vsatellite data –Vmeteorological data) before and after adjustment. (a), (d) Comparison before and after ASCAT data correction; (b), (e) Comparison before and after QuikSCAT data correction; and (c), (f) Comparison before and after Windsat data correction.
Exclusion areasLimiting factorsBuffer/m
Railway, highwaySecurity, visual pollution400
Cities, factories, mines, residential areas, villagesSecurity, noise pollution3000
WaterSecurity400
ForestVisual pollution, land use restrictions500
Tab.2  Wind energy limiting factors and exclusion areas
ParametersVestas V80CCWE3000DSL5000
Power rating/kW200030005000
Cut-in wind speed/(m·s?1)433.5
Cut-out wind speed/(m·s?1)252525
Rated wind speed/(m·s?1)141212.5
Vane number-33
Impeller diameter/m80103128
Hub height/m80--
Swept area/m25027832812,795
Tab.3  Characteristics for the reference wind turbines
Fig.6  Onshore-offshore annual average wind speed of Jiangsu Province. (a) Distribution of onshore-offshore wind speed; (b) wind speed statistics for cities; and (c) wind speed statistics of ocean meteorological observation stations.
Station numberStation nameLongitude/°ELatitude/°NHours of effective wind energy/h
58343Changzhou119.9531.796199
58358Dongshan120.4331.075503
58251Dongtai120.2832.855787
58040Ganyu119.1134.834292
58241Gaoyou119.4532.806478
58141Huaian119.1533.285751
58265Lvsi121.6132.076459
58046Taizhou119.8932.523970
58259Nantong120.8831.985585
58150Sheyang120.2533.767187
58138Xuyi118.5232.585379
58130Xuzhou117.9233.893714
58345Liyang119.4831.434632
58247Yangzhong119.8332.245978
58354Wuxi120.3531.616180
58250Jiangyan120.1632.515257
58132Siyang118.7033.734170
Tab.4  Hours of effective wind speed for 17 representative stations
Fig.7  Annual hours of effective wind speed at 80 m in Jiangsu Province.
Fig.8  Wind rose diagrams for different ocean meteorological observation stations in the Jiangsu offshore area, 2006–2014.
Fig.9  Spatial distribution of annual average wind power density at 80 m height in Jiangsu Province. (a) Spatial distribution of onshore-offshore annual average wind power density; and (b) three profiles of wind power density from inland to coastal areas (profile locations shown in (a)).
Fig.10  Seasonal variation of average wind power density at the 80 m height in Jiangsu Province: (a) spring; (b) summer; (c) autumn; and (d) winter.
Fig.11  Seasonal variation of average wind power density at 80 m height in Jiangsu Province.
Fig.12  Suitable areas for onshore wind farm development in Jiangsu Province.
CitySuitable installation area/km2Annual generated energy/GWhCitySuitable installation area/km2Annual generated energy/GWh
Changzhou133.691805.10Wuxi94.63887.84
Huai'an277.831613.07Suqian310.302182.81
Lianyungang699.838795.96Xuzhou290.02824.96
Nanjing46.10212.24Yancheng5503.81102,609.58
Nantong4459.4162,893.33Yangzhou452.523909.51
Suzhou404.797651.44Zhenjiang118.491198.92
Taizhou781.8311,490.63sum13573.24206,075.39
Tab.5  Potential wind power resources for different cities in Jiangsu Province
Water deptha)/mArea/km2CCWE3000DSL5000
Output power/GWPower generation /GWhOutput power/GWPower generation /GWh
0–5 m4236.4514.85111,870.1514.07106,023.89
5–25 m48,807.61111.35838,850.43105.53795,012.71
25–50 m39,067.54118.75894,618.12112.54847,866.01
50–100 m13,771.7631.90240,320.1830.23227,761.21
Total105,883.40276.852,085,658.89262.381,976,663.82
Tab.6  Potential offshore wind power resources at different water depths in Jiangsu
Satellite dataAverage deviation /(m·s?1)Mean absolute deviation/(m·s?1)RMSE/(m·s?1)Correlation
coefficient
QuikSCAT0.272.393.290.62
ASCAT0.172.132.960.7
Windsat?1.552.423.190.78
Tab.7  Comparison of wind speed between satellite data and offshore stations
Satellite dataAverage deviation /(° )Mean absolute deviation /(° )RMSE/(° )Correlation coefficient
QuikSCAT2.952.7695.640.56
ASCAT0.3149.1893.780.58
Windsat----
Tab.8  Comparison of wind direction between satellite data and offshore stations
ItemSplineNatural NeighborIDWKriging
Mean error/(m·s?1)?0.64?0.20?0.19?0.09
MAE/(m·s?1)0.510.440.430.41
MRE/%17.9316.0515.2914.88
RMSE/(m·s?1)0.740.600.590.58
Correlation coefficient0.510.630.620.62
Tab.9  Analysis of interpolation results
Fig.13  Onshore wind speed results for Jiangsu Province determined by the four different interpolation methods: (a) Spline; (b) IDW; (c) Natural Neighbor; (d) Kriging.
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