Author Archives: hugh

About hugh

I live off-grid in NW Scotland and have spent my life playing with wind turbines. I also love small hydros. Hands on renewable energy is my thing and I like to learn and to share my experiences.

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

Courses happening in March and April

There are several wind turbine construction courses happening around the world in March and April. The Handy Village Institute is preparing for their third Homebrew Wind Turbine Workshop, with Dan Bartmann as guest instructor, March 19-24, 2018, near Saxapahaw, North … Continue reading

Posted in courses, Notices | Leave a comment

email contact with me

I have been disturbed to learn that some emails sent to me have not arrived and my provider has not been able to explain or fix the issue yet.  So if you are trying to get in touch and have … Continue reading

Posted in Notices | Leave a comment

Secondhand Proven 6kw & Windy Boy Inverter

Richard Copland writes: I have a Proven 6kw and a Windy Boy inverter that I would l like to sell as it is on land that is due to be sold (the buyer does not require the turbine). Is this … Continue reading

Posted in stuff on offer, UK small wind scene | 3 Comments

Handy Village Homebrew Workshop, with Dan Bartmann

The Handy Village Institute is preparing for their third Homebrew Wind Turbine Workshop, with Dan Bartmann as guest instructor, March 19-24, 2018, near Saxapahaw. Details and registration information: handyvillage.com. FlyerEddy2018Turbine

Posted in construction, courses, Notices | 4 Comments

Charge controllers – a brief introduction

Why do we need charge controllers? To prevent batteries from being damaged by charging too hard.  As you charge a battery, its voltage rises, which is all good up to a point.  However if the voltage gets too high the … Continue reading

Posted in Diversion load control, products/technical, wind systems tutorial | 6 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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A new alternator for my little AWP windmill

I don’t usually write much at all about the stuff I get up to, but here is a story of my smaller wind turbine having an upgrade last month when I replaced the alternator.  I was helped by my friend … Continue reading

Posted in construction, ferrite magnets, my own projects, Scoraig | 6 Comments

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

Posted in construction, People | 1 Comment

Free workshop in Austria

It probably helps to speak some German.  free participation in a do-It-yourself Windmill Workshop! Take advantage of the special chance!   the workshop will be soon, from 7. To 11. August in the sun park st. Pölten in the framework of the eschmiede summer … Continue reading

Posted in construction, courses, ferrite magnets | Leave a comment