RESEARCH ON VALUE ASSESSMENT OF OFFSHORE WIND ENERGY RESOURCES IN GUANGDONG BASED ON ERA5 DATA

Zou Jia&#x02019;nan; Cao Qimin

doi:10.19912/j.0254-0096.tynxb.2025-1532

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (8) : 809-814. DOI: 10.19912/j.0254-0096.tynxb.2025-1532

RESEARCH ON VALUE ASSESSMENT OF OFFSHORE WIND ENERGY RESOURCES IN GUANGDONG BASED ON ERA5 DATA

Zou Jia’nan¹, Cao Qimin^2~4

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Abstract

The ERA5 wind field data from ECMWF is used to obtain an average annual wind speed of 7.4 m/s at the height of 100 m in shallow sea waters of Guangdong from 2020 to 2024, with a coefficient of variation of 0.44, indicating good wind energy stability. The average annual wind power density in shallow sea waters is 414.5 W/m², with the highest wind power density in autumn at 556.0 W/m² and the lowest in summer at 235.6 W/m², which is misaligned with the peak electricity load in summer. The average annual wind power potential in shallow sea waters is 3061×10⁸ kW·h. Based on the grid electricity price and green power premium, the average annual economic value of wind energy ecological products in eastern Guangdong, the Guangdong-Hong Kong-Macao Greater Bay Area, and western Guangdong is 31.2 billion yuan, 42.8 billion yuan, and 66.6 billion yuan, respectively. According to the recent planned installed capacity, it is expected that the wind power generation in shallow sea waters will reach 1136×10⁸ kW·h by 2030, accounting for only 37.1% of the total potential technological development. There is a large space for green power development and consumption. From the perspective of the planning area, the average annual wind speed and wind power density in deep sea waters are 8.5 m/s and 643.7 W/m², which are 14.9% and 55.3% higher than those in shallow sea waters, respectively. The potential annual power generation is about 3632×10⁸ kW·h, and the average annual power generation value can reach 167 billion yuan. It is recommended to prioritize the development of deep-sea offshore wind power in eastern Guangdong in the future.

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wind power / wind farm / wind power density / ecological value / Guangdong coastal waters

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Zou Jia’nan, Cao Qimin. RESEARCH ON VALUE ASSESSMENT OF OFFSHORE WIND ENERGY RESOURCES IN GUANGDONG BASED ON ERA5 DATA[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 809-814 https://doi.org/10.19912/j.0254-0096.tynxb.2025-1532

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