Difference between revisions of "Small Wind Energy Devices Can Provide Lowest Energy Prices"

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= Overview =
 
= Overview =
  
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Small wind turbines (with height up to 4 m and width 2 m), which have no external rotating parts are very easy to install and maintain. These wind turbines are also environment-friendly. For example, if wind turbines with effective height 2,5 m and width 2 m were deployed in a number equal to the number of motor vehicles in the world, the electricity production from these wind turbines in fresh breeze (8,5 m/s) would constitute about 56% of the world electricity production.
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Small wind energy devices (wind turbines) with no external rotating parts are <span style="font-size: 13.6px; line-height: 20.4px; background-color: rgb(255, 255, 255);">environment-friendly and&nbsp;</span>easy to install and maintain.&nbsp;<br/>
  
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In 2010, the number of vehicles in service worldwide surpassed 1 billion.&nbsp;Similarly, the world electricity production in 2013 was 23,322 TWh which is equal to 23,322 billion kWh.&nbsp;To see an example of a small wind energy device , please click [http://www.anwsite.biz/ here].<span style="font-size: 13.6px; line-height: 20.4px;">This device is assumed to produce 1,5 kW in 8,5 m/s wind.</span>
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For example, if wind energy devices with effective height 2,5 m and width 2 m were deployed in a number equal to the number of motor vehicles in the world, the electricity production from these devices in fresh breeze (8,5 m/s) would constitute about 56% of the world electricity production.
  
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If the annual average electricity from each device was 1,5 kW the amount of electricity produced per year from 1 billion devices would be 1,5 (kW) x 24 x 365 (number of hours per year) x 1 billion &nbsp;= 13 140 billion kWh.<br/>
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This is calculated as follows:&nbsp;
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According to ref. 1 the number of vehicles in service worldwide has surpassed 1 billion. Using data from 2013 the world electricity production was 23,322 TWh. This is equal to 23,322 billion kWh. A small wind energy device shown at ref. 4 is assumed to produce 1,5 kW in 8,5 m/s wind.
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If the annual average electricity from each device was 1,5 kW the amount of electricity produced per year from 1 billion devices would be 1,5 (kW) x 24 x 365 (number of hours per year) x 1 billion &nbsp;= 13,140 billion kWh.<br/>
  
 
This constitute about 56&nbsp;% of the world electricity production.
 
This constitute about 56&nbsp;% of the world electricity production.
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References:
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References''':'''
 
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1.&nbsp;[http://wardsauto.com/news-analysis/world-vehicle-population-tops-1-billion-units http://wardsauto.com/news-analysis/world-vehicle-population-tops-1-billion-units]<br/>
 
1.&nbsp;[http://wardsauto.com/news-analysis/world-vehicle-population-tops-1-billion-units http://wardsauto.com/news-analysis/world-vehicle-population-tops-1-billion-units]<br/>
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5.&nbsp;[https://www.pce-instruments.com/english/measuring-instruments/test-meters/wind-speed-meter-kat_150783_1.htm https://www.pce-instruments.com/english/measuring-instruments/test-meters/wind-speed-meter-kat_150783_1.htm]
 
5.&nbsp;[https://www.pce-instruments.com/english/measuring-instruments/test-meters/wind-speed-meter-kat_150783_1.htm https://www.pce-instruments.com/english/measuring-instruments/test-meters/wind-speed-meter-kat_150783_1.htm]
  
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[[Category:Wind]]
 
[[Category:Renewable_Energy]]
 
[[Category:Renewable_Energy]]
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[[Category:Wind]]
 

Revision as of 20:02, 27 February 2016

Overview

Small wind energy devices (wind turbines) with no external rotating parts are environment-friendly and easy to install and maintain. 

For example, if wind energy devices with effective height 2,5 m and width 2 m were deployed in a number equal to the number of motor vehicles in the world, the electricity production from these devices in fresh breeze (8,5 m/s) would constitute about 56% of the world electricity production.

This is calculated as follows: 

According to ref. 1 the number of vehicles in service worldwide has surpassed 1 billion. Using data from 2013 the world electricity production was 23,322 TWh. This is equal to 23,322 billion kWh. A small wind energy device shown at ref. 4 is assumed to produce 1,5 kW in 8,5 m/s wind.

If the annual average electricity from each device was 1,5 kW the amount of electricity produced per year from 1 billion devices would be 1,5 (kW) x 24 x 365 (number of hours per year) x 1 billion  = 13,140 billion kWh.

This constitute about 56 % of the world electricity production.


1,5 kW from a device with effective area 2,5 x 2 m and overall efficiency 0,75 requires a wind energy density of 400 W/m^2.

At ref. 4 you can find information about the average wind energy density in your area. Please note that the available energy depends on the altitude of the energy converter components in relation to the ground.   

The terrain around the wind energy device may both decrease and increase the wind energy density. In some cases a building wall can locally increase the wind energy density.

Before deciding to buy a wind energy device the wind speed at the site should be measured by means of a Wind Speed Meter. For examples of such meters see ref. 5. 


References:


3. http://www.anwsite.biz

4. http://www.renewableenergyst.org/wind.htm

5. https://www.pce-instruments.com/english/measuring-instruments/test-meters/wind-speed-meter-kat_150783_1.htm

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