5,620 hours. According to a query from the international wind network, the Qinghai Lenghu wind zone has abundant wind energy resource reserves, with an average annual wind period of up to 180 days and an effective annual wind energy duration of 5,620 hours. The project is located in the northern part of the Qinghai-Tibet Plateau, with high altitude, low temperature, little rain, windy, cold and dry conditions.
Proportional to the cube.
1. The most critical factor in wind power generation is wind size, and wind conditions offshore are generally better than on land. Wind speeds at sea 10 kilometers offshore are typically 20% higher than on land. along the coast. The power generated by wind turbines is proportional to the cube of the wind speed, so under the same conditions, the annual power generated by offshore wind turbines can be 70% susuperior to that produced on earth. At the same time, there are rarely periods of calm wind at sea, so wind turbines can produce electricity for longer. Generally speaking, the annual power generation usage time of onshore wind turbines is around 2,000 hours, while that of offshore wind turbines can often reach more than 3,000 hours.
2. For wind power equipment, the land terrain is complex and rugged, and wind speeds at different heights often vary greatly, resulting in wind shear and turbulence, which exerts higher and lower forces on the wind. unbalanced wheel, which can lead to vibration, fatigue and even blade breakage, and the transmission system is also easily damaged. There are few such risks at sea. Additionally, offshore wind power is mainly built at tens of kmeters from the coast and close to the centers of energy consumption, there is therefore practically no risk of abandoning wind energy.