Category Archives: power curve data

Jon Leary’s performance study of Scoraig wind turbines published

Posted on 08/07/2020 by hugh

The long awaited final version of Jon’s study based on data he collected here in 2012-2014 has finally been published and is free to read or download here courtesy of Wind Engineering. An important conclusion is the the table in … Continue reading →

Posted in construction, my own projects, performance, power curve data, Scoraig | Leave a comment

Scoraig wind turbines performance measurement summary

Posted on 18/12/2015 by hugh

Between 2012 and 2014 Jon Sumanik-Leary and I did some performance measurements on wind turbines here at Scoraig, using Logic Energy mobile logging systems.  Jon has finally completed the processing of the results and sent me some exciting curves. There is a … Continue reading →

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2.4m machine on test in Greece

Posted on 18/04/2015 by hugh

Kostas sent me a power curve and a video of a 2.4m machine constructed from my 2005 publication “How to Build a Wind turbine”from the NTUA test site in Rafina . It’s similar to the same size model in my Recipe … Continue reading →

Posted in performance, power curve data, Video links | 1 Comment

Live data from a powerspout turbine in Abergavenny, United Kingdom

Posted on 12/11/2014 by hugh

Here is a site where you can see a grid connected powerspout in operation exporting electricity.  Unlike solar PV systems, this renewable source keeps going night and day.  Although it only generates 600-700 watts or so, it keeps up well … Continue reading →

Posted in hydro, People, power curve data, products/technical | 2 Comments

Performance data for two Recipe turbines

Posted on 22/06/2014 by hugh

New performance data is available from field tests in Holland showing the 1.8 metre diameter turbine producing close to the predicted energy at a 4.8 m/s average windspeed. This turbine is grid-tied using a Mastervolt inverter protected by LDR circuits.   … Continue reading →

Posted in construction, developing world, performance, power curve data | Leave a comment

Windtracker test update

Posted on 08/04/2014 by hugh

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 http://scoraigwind.co.uk/?s=kestrel which is the right hand end one in the above photo) … Continue reading →

Posted in power curve data, products/technical, Scoraig | 7 Comments

Power curve data for 3 metre recipe turbine on Scoraig

Posted on 29/12/2013 by hugh

I have been using a Mobile Logger from Logic Energy to collect data on a 3 metre diameter turbine close to my house.  The turbine is built to the Recipe Book.  In the gallery you can see the site and … Continue reading →

Posted in construction, power curve data, Scoraig | 1 Comment

Wind tunnel test compared with theory in Portugal

Posted on 22/11/2013 by hugh

João P. Monteiro has done some interesting studies of the performance of a 1200 diameter Recipe blade set in a wind tunnel and compared the results with theoretical predictions of a couple of simulation progams.  The results are close.  It’s … Continue reading →

Posted in construction, People, power curve data | 1 Comment

LOCALLY MANUFACTURED SMALL WIND TURBINES – HOW DO THEY COMPARE TO COMMERCIAL MACHINES?

Posted on 12/11/2013 by hugh

PhD_Seminar_2013_FullPaper_Sumanik-Leary FINAL Above is a link to a paper by Jon Sumanik-Leary in which he uses a study of a Scoraig power system (with 3 metre diameter recipe turbine) to compare with a Bergey wind turbine.  Annual energy production is … Continue reading →

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Test report for Recipe 3.6 metre turbine

Posted on 11/11/2013 by hugh

Rapport SEPEN 32.6 – Eolienne autoconstruite Piggot – 1.7 kW – Reseau Above is a link to the full test report in French of a Recipe style 3.6 metre diameter grid connected wind turbine, built by Tripalium. I can understand … Continue reading →

Posted in Books, construction, France, People, power curve data | Leave a comment