Wind Power Facts: Wind Power Definition

With more wind turbines dotting the landscape, people are beginning to wonder what, exactly, wind power is and how wind power works.

The rising cost of traditional sources of energy has caused more consumers to educate themselves on this alternative energy source.

We will take a closer look at the definition of wind power, how wind power works, the advantages and disadvantages of wind power, and how you can put wind power to work for you.

Wind Power

Image source: Pixabay

Before you can decide if utilizing wind power is right for your family or business, you must first have a working knowledge of this cutting edge source of energy. The definition of wind power is fairly simple: it is power generated by the wind.

However, the definition of wind power gets a little more complicated when you look at the mechanics of turning wind into useable energy. The majority of wind power is produced by wind turbines that are used individually or collectively on wind farms to create energy.

No wind power definition is complete without mentioning that wind power is no longer for the elite or people willing to dabble in experimental forms of energy.

Thanks to evolving technology that has resulted in lower costs, wind power is becoming more readily affordable and available to regular consumers. The wind power definition is gaining both in understanding and in use.

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Wind Power Facts: How Wind Power Works

In its simplest form, people have been using wind power for thousands of years. When working toward a wind power definition, consider that windmills have been used throughout history for pumping water and milling grain. Fast forward to today, and you have wind turbines that convert wind into electricity.

According to, a wind turbine works when the wind turns large blades called rotors, which then spin a shaft. The shaft connects to a generator, which produces electricity. How wind power works is in direct proportion to the size of the rotor blades and the speed of the wind.

How Does Wind Power Work

Image source: Unsplash

The advantages and disadvantages of wind power can best be understood in light of the two main types of turbines.

Horizontal Axis Wind Turbines

The most familiar type of turbine that uses wind power is the horizontal axis wind turbine, also referred to as a HAWT. These are the turbines that resemble large fans.

Some turbines in the United States can have blades that are 143 feet long, situated on towers that are over 256 feet high, reaching a combined 399 feet tall, according to National Wind Watch.

There are advantages and disadvantages of wind power generated by horizontal axis wind turbines.

Advantages include:

  • Access to stronger wind, sometimes increasing effectiveness by up to 20% with every 10 meters up
  • High efficiency due to blades moving perpendicular to the wind

Disadvantages include:

  • Size of the construction needed to support components
  • Difficulty transporting and installing large units

Vertical Axis Wind Turbines

The less familiar type of wind turbine is the vertical axis wind turbine, also known as a VAWT. The majority of vertical axis wind turbines can resemble giant egg beaters that spin on a vertical axis. According to Conserve Energy Future, vertical axis wind turbines are the most popular ones people are using for renewable energy in their homes.

There are advantages and disadvantages of wind power generated by vertical axis wind turbines.

Advantages include:

  • Easier transportation and installation compared to horizontal axis wind turbines
  • Comparatively lower production and maintenance costs
  • Able to produce electricity in any wind direction

Disadvantages include:

  • Lower efficiency than horizontal axis wind turbines
  • High vibration due to air flow near the ground

Where Wind Power Works Best

The advantages and disadvantages of wind power start with where the wind turbines are situated in the first place. Wind power works best where the wind is reliable with an average wind speed of at least 13 miles per hour. These places may include:

  • Tops of rounded hills
  • Open plains
  • Coastal areas
  • Offshore

When turbines are combined in one area to capitalize on wind power, it is referred to as a wind farm. Offshore wind farms have the advantage of wind speeds that are faster and steadier than on land. According to American Geosciences Institute, “Small increases in wind speed yield large increases in energy production.”

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Wind Power Facts: Uses of Wind Power

When considering the advantages and disadvantages of wind power, it’s important to question how useful this alternative source of energy really is. What are the uses of wind power?

When considering the wind power definition, it’s easy to understand that power generation is the primary purpose. By producing electricity, wind power can be used the same as power from any other source. Since the end result — electricity — is the same, the question then becomes how wind power works in a particular situation, and how much energy it can produce.

Because the amount of power a wind turbine produces is directly related to its size, how wind power works will vary between personal use and industrial use.

How Wind Power Works for Personal Use

According to the Wind Energy Foundation, a small turbine (5-kW generating capacity) would be the right size to power a typical American home. The advantages and disadvantages of wind power for home use must be considered when talking about a wind power definition that works for the average consumer.

Special considerations include:

  • Cost
  • Aesthetics
  • Power needs
  • Location

How Wind Power Works for Industrial Use

The advantages and disadvantages of wind power for industrial use have a broader application. How wind power works on a wind farm with multiple turbines is similar to that of home use but on a larger scale.

According to National Wind Watch, a 1.5-MW turbine would produce 3,285,000 kWh per year. In 2015, wind power produced over 190 million megawatt-hours, which is enough electricity to power approximately 17.5 million homes.

The U.S. Department of Energy estimates that up to 20% of energy in the United States could be provided by wind power by the year 2030. Whether you’re curious about the pros and cons of wind power or are looking for a wind power definition for personal use, statistics show that this source of energy will be more important to the economy going forward.

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Wind Power Facts: Pros and Cons of Wind Power

When considering how wind power works so well, it’s natural to wonder why it isn’t more widely used as a source of alternative energy. The wind power definition seems to suggest that the uses of wind power have only upsides.

However, the advantages and disadvantages of wind power must be looked at equally. Let’s take a closer look at both the pros and cons of wind power.

Wind power pros:

  • Renewable source of energy
  • Clean energy source
  • Unlimited energy source
  • Widely available
  • Low cost once installed
  • New jobs in an emerging sector of the economy

Wind power cons:

  • High upfront costs
  • Variable output depending on location and wind reliability
  • Environmental concerns for wildlife such as bats and birds
  • Noise pollution
  • Supply and transportation issues
  • Aesthetics

The advantages and disadvantages of wind power may vary depending on who resides nearby. While some people may be intrigued by the look of towering wind turbines, others are put off not only by the noise, but by the constant flickering shadows produced when the sun hits the rotating blades.

Wind power by definition is a clean energy source, but it’s not without an environmental impact. The amount of land used varies, but one survey found that wind facilities require “between 30 and 141 acres per megawatt of power output capacity.”

The impact on wildlife must also be considered when thinking about the pros and cons of wind power. One of the most controversial issues in regard to wind turbines are bird and bat deaths, largely caused by collisions with the turbines because of the changes in air pressure due to the spinning blades.

Wind power facts point toward an increasingly reliable source of energy as advances in technology begin to compensate for some of the downsides.

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Wind Power Facts: Wind Power Cost

Though wind power by definition should be low-cost because wind is free, wind power cost upfront can be prohibitive both for personal and commercial use.

The cost of a 10-kilowatt wind turbine, which is about the size needed for a large home, can run between $50,000-$80,000. The cost of a 2 megawatt turbine for utility purposes is approximately $3-$4 million, according to These figures include installation.

These wind power facts are enough to make even the most environmentally-friendly person take a step back. However, even though wind power cost may seem prohibitive upfront, there are subsidies available.

In order to make wind power a viable alternative source of energy, both the federal government and state governments offer subsidies targeted toward many segments of society.

People who are interested in exploring more wind power facts concerning cost can enter their zip code on to see which subsidies are available. Once you enter what type of energy you are interested in as well as what type of use (home or business), you can see which loans, rebates, and subsidies your state qualifies for.

Despite the many subsidies and rebates available, National Wind Watch claims that the “support of wind energy is small compared to other forms of electricity.”

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Wind Power Facts: Conclusion

When hunting for a wind power definition while you try to decide if this is a good choice for your home or business, take the time to consider all the pros and cons of wind power. While some of the hurdles like cost and installation may seem high, having a renewable source of energy going forward will likely pay off.

Wind Power Facts

Image source: Unsplash

Wind power facts and statistics show that this source of alternative energy will continue to grow in importance in the years to come.

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