Wind Power Efficiency - Understanding The Efficiency of Wind Energy | Green Life Zen

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Wind energy, likewise known as wind power, is the methods of utilizing wind and turning it into electrical energy. The typical wind efficiency of turbines is in between 35-45%.

Production of Wind Power

Wind is produced in the earth's environment due to distinction in earth temperatures locally or on a regional and international scale. When warm becomes heated it rises leaving the place with low air pressure; air from cooler regions with higher pressures of air moves in to adjust atmospheric pressure.

Wind mills and turbines make the most of the kinetic energy or "movement energy" that moves air or wind from one location to another and converts it to electrical energy. Wind turbines are erected in windy places, so the wind can move the blades of turbines. These blades turn a motor, and equipment increase the rotations enough to produce electricity. Various designs of turbines are suitable for differing conditions.

Wind Power Efficiency and Wind Capacity Factor

Wind power efficiency is not the same as wind power capacity factor, which is what is discussed when individuals consider energy performance. Wind Enjoy describes the distinction in between the two phenomena.

Wind Power Efficiency and Its Limit

Wind efficiency is the quantity of kinetic energy in the wind that is converted to mechanical energy and electrical energy. If a turbine trapped 100% of energy wind would stop blowing and the blades of a turbine can not turn to produce electrical power.

It is, however, not possible for any machine, at present to transform all of the caught 59.6% of kinetic energy from wind to electrical power. The maximum at peak performance could reach 50% according to Wind Watch. An Australian government file (NSW) likewise agrees that 50% is the maximum wind efficiency that can be acquired (pg. 3)

Energy efficiency does not vary as much as wind capability factor does which is dependent to a great level on area and weather conditions.

Wind Power Capability Factor

Wind capability element tends to differ from place to place and at different times of the year, even with the same turbines, because it depends on the speed of wind, its density and swept location that depends on the size of the generator points out Open EI. Wind capability element can be optimized by selecting places where ideal wind conditions prevail the whole or greater part of the year.

Wind speed below 30 miles per hour produces little energy according to Wind Watch. Even small boosts in speed can equate into considerable increase in power generated according to Open EI. Electricity produced is the cube of the wind speed describes Wind EIS.

Air density is more in cooler areas and at sea level than in mountains. So the ideal places with high wind density are seas with chillier temperatures according to Open EI. This is one reason for the large scale expansion in off-shore wind generation.

Larger and taller turbines can make the most of more wind higher above the ground and by the increased span of their blades. Economic considerations for that reason become important here.

Wind turbines constructed in 2014 reached a capability element of 41.2% as compared to 31.2% for turbines developed in between 2004-2011, according to Green Tech Media. The capacity factor of wind is impacted not only by technology, but likewise wind schedule itself.

Contrast With Other Source of Power

The energy efficiency of wind is better than the energy efficiency of coal. Only 29-37% of the energy in coal is transformed to electrical power and gas has nearly the exact same efficiency as wind as 32-50% of the energy in gas can be converted to electrical energy.

In terms of capability elements, fossil fuels performed much better than wind in the U.S. in 2016 according to U.S. Energy Information Administration (EIA).

  • Coal plants in the U.S. performed at 52.7% of their capability.
  • The capacity aspect for gas plants was 56% in the US.
  • Nuclear power had a capability aspect of 92.5%, according to EIA figures for non-fossil fuels.
  • Hydro power's capacity factor was 38%.
  • Wind power's capability element was 34.7%.

When comparing the power output from different sources of energy, it is much better to consider not just the capability factor, however likewise their energy performance. This is what makes increasing the power generation from wind competitive and possible in contrast with nonrenewable fuel sources which are also hassled by the pollution issues they cause.

Intermittency Affects Wind Energy Output

Wind energy suffers from intermittency as wind is not always readily available, and can blow at differing speeds, indicating that power is generated at inconsistent levels. Energy intermittency is the phenomena where energy is not readily available continuous due to numerous elements that people can not manage. There is variation in supply.

Solutions to Intermittency

Since the generation of power from wind turbines fluctuates from hour to hour, or perhaps second to second, power providers need to have larger energy reserves to fulfill and keep constant levels of power supply explains the American Scientist.

Intermittency suggests not simply shortages but likewise periods of excesses; this then provides a possible solution too. The American Scientist describes that as the number of sources of wind power increase, local difference in weather and wind conditions can stabilize shortages and excesses.

Enhanced weather report and modeling also make it much easier to factor in even short-term changes in wind power. A mix of sources is also essential to even diurnal or seasonal differences in wind power generation.

No matter intermittency, widespread new wind farms across the US, have really assisted to support power supply, especially throughout severe weather condition in Texas according to Clean Technica.


In 2017, The Independent announced that production of energy from wind was more affordable than from nonrenewable fuel sources. It costed $50 to produce a megawatt-hour (MWh) in 2017. With enhancing technology, expenses continue to fall, making it more appealing than standard polluting energy sources.

The U.S. wishes to spur this movement by supplying federal government rewards, to increase the share of wind power which provided 6% of its electrical power in 2016 according to EIA.

Wind EIS notes that 80% of the expenses are capital costs associated with setting up the turbines, and 20% is operational. Nevertheless, given that no fuel expenses are included, and considering the power generated in its entire life process, wind energy is competitive.

Carbon-Free Energy

Wind energy is one of the more effective alternatives to fossil fuel energy. Wind and solar could together supply as much as 97% of this energy, according to a 2017 World Online Forum Report. If you are looking for a step-by-step course that teaches you how to lower your energy bills and become more energy independent and self-sufficient by building your own power at home with professional quality residential wind turbines then this is the right system that you can count on.