Windtracker test update

An update 2 years on for my post on the Windtracker by Logic energy.

I put one of these windtrackers on a windmill tower (the Kestrel tower actually which is the right hand end one in the above photo) in March 2012, and to be honest I have not bothered to do anything in the interim. So I was a little worried that I would have lost all my data. The logger is still on its original batteries. voltage was 2.5. The LED was still winking gently. And I got the following data off the card for windspeed:


wind m/s hours
2  4,512
3  2,163
4  2,196
5  1,998
6  1,757
7  1,421
8  1,074
9  876
10  737
11  542
12 m/s average bin  329
13 m/s or over  467
average windspeed: 5.09
total hours  18,072

(I did not have a windvane connected but the logger also stores a useful windrose.)

The data is compromised by the fact that the anemometer is mounted on the west side of the tower and we have had a lot of east winds so it will have under-read those winds. But it’s a very useful clue to the site windspeed distribution.  Raw data on the card is the number of ten minute intervals for each windspeed bin as a text file.

Kestrel turbine with anemometer on short  boom on west side

Kestrel turbine with anemometer on short
boom on west side

About hugh

I live off-grid in NW Scotland and have spent my life playing with wind turbines. I also love small hydros. Hands on renewable energy is my thing and I like to learn and to share my experiences.
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