TYLER HAMILTON, CleanBreak.ca, February 17, 2009
The blade design was tested on a 25-kilowatt Wenvor Technologies turbine at the Wind Energy Institute of Canada. The institude found that annualized energy production from the retrofitted blade increased by an estimated 20%.
You can find the data here and analysis here. “Rated power was attained at 12.5 metres per second versus the 15 meters per second previously published performance for the unmodified Wenvor turbine. (Caveat: it’s an estimate because the test of the retrofitted blade followed International Electro-Technical Commission standards, while the benchmark data did not).
“An improvement of just 1% or 2% in AEP is significant,” said Stephen Dewar, WhalePower’s director of R&D. “Here we have about 20% with low noise. We’re thrilled by this result.”
The next step is to perform a more comprehensive apples-to-apples test on a larger turbine. These results may help the company raise the capital it needs to take its testing to the next level. Perhaps at some point it will begin catching the attention of some of the bigger wind-energy players.