What is IEC wind class?
These three dimensions — wind speed, extreme gusts, and turbulence — encompass the wind class of a wind turbine. The International Electrotechnical Commission (IEC) sets international standards for the wind speeds each wind class must withstand, as seen in the table below.
What is Class 2 wind speed?
Wind Class 2 turbines are for windier sites up to 8.5 m/s average, and are the most common class of wind turbines available.
What are the classes of wind power?
There are three wind classes for wind turbines, which are defined by an International Electrotechnical Commission (IEC) standard and correspond to high, medium, and low wind, as Table 1 shows. Specifications for wind classes.
What wind speed is considered windy?
Windy is a sustained wind speed from 20-30 mph. What makes a very windy day? Sustained winds between 30-40 mph.
What are the wind speed categories?
- Light winds at 1-5 kph (1-3 mph).
- Light breeze at 6-11 kph (4-7 mph).
- Gentle breeze at 12-19 kph (8-12 mph).
- Gentle breeze at 20-28 kph (13-18 mph).
- Fresh breeze at 29-38 kph (19-24 mph).
- Strong breeze at 39-49 kph (25-31 mph).
- Moderate gale at 50-61 kph (32-38 mph).
- Fresh gale at 62-74 kph (39-46 mph).
What is wind rating N2 mean?
N2 – Low: Trees are damaged and blown down and some structural damage to buildings is likely.
What is wind energy Class 4?
Wind Power Animation Wind power or wind energy describes the process by which the wind is used to generate mechanical power or electricity. Wind turbines convert the kinetic energy in the wind into mechanical power.
What is utility scale wind?
Utility-scale turbines are usually defined as turbines that exceed 100 kilowatts in size. Utility-scale wind turbines are typically installed in large, multi-turbine wind farms connected to the nation’s transmission system. More information is available on the Energy Department’s wind energy research portfolio.