In the development and construction of offshore wind farms, it is essential to consider various factors such as wind energy resources, hydrogeology, grid-connected conditions, transportation, construction and installation, socio-economic environment, and ecological protection. Additionally, the meteorological conditions at sea should also be evaluated. This study aims to evaluate the situation of offshore wind energy and wind resources in Hangzhou Bay. The evaluation was conducted based on the relevant methods in the “Wind Farm Wind Energy Resource Evaluation Method” and the “National Wind Energy Resource Evaluation Technical Regulations”. The analysis was carried out using meteorological observation data and ERA5 reanalysis data. Through the analysis of WS, average wind power density, representative annual wind energy resource analysis, and maximum WS during the reproduction period of meteorological stations indicate that the sea area is rich in wind energy resources. The main wind direction is consistent with the main wind direction, which is conducive to fan arrangement.
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