To generate mechanical power or electricity by the use of wind is called wind energy or wind power. Wind turbines convert the kinetic energy in the wind into mechanical power. A generator can convert mechanical power into electricity. Wind power is one of the fastest-growing renewable energy technologies. The wind is free and clean which is always available as a renewable source of energy and there is no side effect in environment of wind energy so it has a much smaller impact on the environment as compared to burning fossil fuels.
The Global Wind Energy Council (GWEC) has published the 14th edition of the Global Wind Report. Report confirms that in 2018, 51.3 GW of new installations done and expecting around 300 GW of new capacity to be added in next five years. Wind energy is very cost effective in relation to the incumbent fossil fuel generation and nuclear around the world.
Report says that China accounted for the highest proportion of new installations in 2018, both offshore (40%) and onshore (45%). The Latin American wind market has also grown over the past ten years, accumulating total installations of 25 GW. Colombia is an emerging wind market, with the ambition for 1.5 GW of renewable capacity by 2022. The majority of onshore installations are expected to come from Egypt, Kenya, Morocco and South Africa, adding over 6 GW new capacities by 2023.
Global Wind Energy Council (GWEC) announced today i.e. 11th November, 2019, the launch of The Global Gender Survey of the Wind Industry which will provide new insights on the roles and representation of women in the wind sector. This survey is being conducted between the International Renewable Energy Agency (IRENA) and the Women in Wind Global Leadership Program, which is co-organized by GWEC and the Global Women’s Network for the Energy Transition.
Wind Energy Basics
Wind is free for all. Mountains, water bodies, and vegetation all influence wind flow patterns Wind turbines convert the energy in wind to electricity by rotating propeller-like blades around a rotor. The rotor turns the drive shaft, which turns an electric generator.
Three key factors affect the amount of energy a turbine can harness from the wind:
- Wind speed
- Air density
- Swept area
Parts of Turbine:
Blades: – Lift and rotate when hit by wind, causing the rotor to spin.
Rotor: – Rotor is a combination of blades and hub.
Pitch System: – Pitch system turns blades out of the wind to control rotor speed. Also stops the rotor from spinning in the condition where the wind is very slow or too fast.
Generator: – Generator produces 60-cycle AC electricity within the turbine.
Controller: – Controller starts and stops the turbine from working, depending on the condition.
Yam Drive: – Yam drive controls upwind turbine to orient them should wind direction change.
Tower: – The strong base of the turbine, built to support the rest of the structure.
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