Tod Hanley kindly gave us all data on another PowerSyncII inverter in tabular form (on s-w-h). So I added these data to my report(Figure 1). He is showing much higher efficiency which is good news!

The polite thing to do is to assume his data are more correct than mine. Or mine could be correct too and the two units just vary more than expected.

I am installing monitoring equipment on 6 different turbines in a few months, so when I get back to the turbine with the 'my' PowerSyncII I will set it up to measrue efficiency by more than one technique and report back to the group.

For now, the revised report with Tod's data can be downloaded as R#56 on http://www.ualberta.ca/~mtyree/SWIEP/Publications.html

Thanks Tod!

--Mel

Mel Tyree, BA PhD (Cantab.) LLD (h.c.) FRSC
Professor
Department of Renewable Resources
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University of Alberta
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