Installation date: 17 November 2013
Test ended: 1 March 2014
Wind turbine system specification:
|48 V, rated 350 W
|14 m, free standing
|Mastervolt Windmaster 500 with LDR 96-15 protection
Total energy produced: 154 kWh
The average wind speed during the test period was 4,8 m/s. This is higher than the yearly average of 4 m/s at the test site.
Performance data have been logged with a 5 minutes interval. The daily energy production during the test period:
The power curve and efficiency factor Cp are derived from 29900 data points:
The highest instantanious power recorded during the test period was 472 W. The average power and wind speed are presented in weekly graphs in archive power and details of the daily energy production can be found in archive energy.
The projected yearly energy yield compares very well to the numbers from Hugh Piggott’s work book:
Although the testing period was a little too short, the wind turbine passed the most important requirements from the duration test specified in the international standard for small wind turbines IEC61400-2: