The theoretical energy production calculated by the wind power software should be modified as follows depending on the degree of influencing factors.
1) Air density reduction, the calculation formula of air density reduction coefficient is: air density reduction coefficient = (1 - wind field air density / standard air density) * before the rated wind speed Wind energy frequency.
If the on-site air density power curve is used to calculate electricity production, there is no need to reduce it.
2) Reduction of wake losses The wake losses of each wind turbine are generally taken into account by software calculations, the reductions will therefore not be repeated.
3) The utilization rate of wind turbines depends on whether the wind turbines are out of service or repaired, then on the grid.
Organize Tangfeng Songxiu in Xiaofengyue.Based on the current manufacturing level of wind turbines and the actual situation of the wind farm, the utilization rate of wind turbines is estimated to be around 95%.
Annual income of 300,000 kilowatts of wind energy
Generally, the equivalent hours of use of wind turbines = total annual energy production/rated unit power. In the above formula, the rated power of. the unit That's certain, and the data directly concerned is the "total annual electricity production". For this data, the main influencing factors are:
1. Weather data, including wind conditions, climate, and natural disasters;
2. Unit failure rate and reliable unit operation time
3. is now a very important influencing factor;
< p>4. On-site losses, including variable losses, line losses, reactive power, etc.5. >168,000. SeAccording to the official website of the People's Government of Chengbu County, Hunan Province, in 2022, Chengbu Wind Power will generate 250 million kilowatt hours of electricity and achieve a revenue of 140 million yuan. With 300,000 kilowatts of wind power, the annual income. is 168,000 yuan. The calculation formula is 1.4 divided by 2.5 equals 0.56 and 0.56 times 30 equals 16.8.