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To determine what your annual wind speed is click here
for Wind Maps.
Data can be gathered from local airports and meteorological station, a wind
study is recommended using an anemometer to determine the actual wind potential
at the site.
Here are a few Companies that manufacturer anemometer:
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Just as important as the winds, the location of the wind system is very
important too. A Site Analysis should be done to determine the best
possible location for the wind system to capture the most available
wind.
A few key issues have to be considered:
- Terrain
- Usually the highest point has the best winds, although areas around
river valleys, large hills or mountains and large areas of trees can
affect the actual site. That is why it is best to do a wind study.
- Obstructions (Trees & Buildings)
- It is generally recommended to install a tower that is a minimum of 30 feet
above all obstructions, and to locate the machine at a distance that is twice
the height of the obstructions.
- Prevailing Winds
- Try to locate the machine in an area where the prevailing winds can
get to the machine without any obstruction in front of it.
| The shortest tower we manufacture is 80 foot, but as you can
see using the chart at the right the higher you go the higher the winds. |
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Back to Wind Maps
You will have to contact the following people to determine if it will be applicable
to install a wind system at you site:
- Soils Engineer
- Local Building Department
- Power Company (if you are installing a Grid Intertie
System)
If you are considering a Grid Intertie system, your power companies policies
on Back Feeding or Cogeneration are important if you have excess power to sell
back to them. There is a federal PURPA (Public Utilities Regulatory
Policies Act) law which allows Qualifying Facilities to interconnect and sell
power to the electric utility companies.
- Dual Metering
This is where one meter measure the power purchased from the utility and
the second meter measures the power that is sold back the the utility.
This sometimes allows the utility to set a lower rate for the power they are
purchasing from you.
- Net Metering
This is where one meter is used to measure the power that is purchased
and sold, this has it advantages and disadvantages. One disadvantage is
there is no credit given for a negative reading.
Additional information is available AWEA's website.
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