Category Archives: People

Open source design tool for alternators

I got this from Kostas today: OpenAFPM: An open source software tool for modelling and designing axial flux permanent magnet generators in wind electric systems Update THERE WILL BE A WEBINAR ON 19th April where you can learn how to … Continue reading

Posted in construction, Notices, People | 3 Comments

Another design proposal from Adriaan Kragten

Adriaan tells me: “Recently I have written report KD 645 about the design of a new type 10-pole radial flux PM-generator with no iron in the coils and a simple 1-layer winding. This report can be copied for free from … Continue reading

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16 foot homebrew in Wyoming

“Hello again. We are in wyoming, only 30 miles from proposed LARGEST wind farm in WORLD( cherry choke project ) best wind zone in USA here.  3000 new GIANT wind generators will be installed here in  next  year.  7200 ft … Continue reading

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Tashi’s Turbine on PBS

Latest news: This broadcast will also be live on Facebook here. The film Tashi’s Turbine will have it’s broadcast in the United States on PBS on November 13th 10pm EST. Tashi’s Turbine – Documentary  Set in the grasslands of the Himalayan … Continue reading

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Interesting tower for 2.4m machine at Tempelhof Berlin

Thanks to Windrad THF for these pics of a nice 2.4m diameter recipe book turbine at Tempelhof.  Here is a link to the video of the erection process. This video is a fast forward and plays 8 times as fast … Continue reading

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Wind turbine news from Belgium

Hello Mr piggott, I’m Fabian, 36 years old, from Belgium. First i want to congrulate you for the invention of this fabulous generator. I’m a member from “atoutvent2000“, the most active group in belgium for self made wind turbine. I … Continue reading

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Workshop story from TU Delft

Here’s a nice concise description of a course run by Tripalium in France using my design. Students from TU Delft Energy Club went to France for a practical workshop. They came back with a working wind turbine that they now want … Continue reading

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Alex Burgos’ overvoltage clipper

Alex sent me an email: I hope you are well I am writing to show my CLIPPER I tried it with my 12 volt turbine I have the Tristar ts-60 dc and ac Clipper The CLIPPER use it to control … Continue reading

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Possible student research project

Adriaan Kragten has been kind enough to notify me of his latest design work which is documented in his free pdf reports available for download here.  Most of his wind turbines have been based on converting induction motors to pm alternators … Continue reading

Posted in construction, People, products/technical | 1 Comment

Hands on workshop in Costa Rica

Ian Woofenden has decades of experience living off-grid and teaching workshops. Renewable Energy for the Developing World  Costa Rica – April 2-10, 2016 This workshop provides an introduction to all the major renewable energy technologies with a focus on designing and … Continue reading

Posted in courses, developing world, People | 1 Comment