Windempowerment conference

Crowdfunding campaign ! Check the Indiegogo website through the link below to find out how you can contribute and what you’ll get in return!


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pics of wind turbines sent to me recently

Loren Johnson , about 80 miles NW of Chicago writes:
I bought the 2011 edition of your “Wind Turbine Recipe Book” and have built the 14 ft. model.


Leslie Bryan, Normandy France writes:

Just a quick note and pic of 3 of your 3.7m diameter Turbines finally all running sweet.
Thanks for a good design.

Michel Roba (Belgium) writes:
I  have completed the construction of the turbine(3.6m, 24V).
As you can see the mast is short, but the place is quite windy and there is no obstacle in the main direction of wind.
The blades are made of red cedar coated with glass fiber/epoxy and G8 varnish.
The balance of propeller/rotors has been thoroughly made and finished with the varnish.
It works very smoothly, no vibration at all, very silent, just a slight noise when wind turns.
Looks nice job of yours, and hopefully of mine…

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New edition of metric Recipe Book as Scribd PDF file

This will probably be the final edition of my Recipe Book, first published in 2009.  Minor changes since last year’s edition and significantly better than the first ebook 2010 edition.

This was removed by scribd for a few days because they thought it was in breach of copyright because they already have the 2013 edition, but I sorted that out now.


A Wind Turbine Recipe Book (metric edition)

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upcoming courses around the world

(see this page for an updated list or click on “courses” in the header menu above)

Here are some more “build your own wind turbine” courses based on the axial flux design that are coming up soon.  (These courses teach the wind turbine designs derived from my books.)

Tripalium  lundi 11 août au vendredi 15 août 2014   voir la fiche du stage au Moulinas , MONTOULIEU 34190 HERAULT FRANCE. Pendant cette formation de 5 jours, Vous allez construire en compagnie de plusieurs autres stagiaires une petite éolienne de 1,80 m de diamètre. En fin de stage, elle sera montée sur un mat lui aussi auto construit.

500RPM  Buenos Aires, Argentina CURSO DE FABRICACIÓN DE AEROGENERADORES Fecha: Fines de semana del 23-24 y 30-31 de agosto.  Horario: De 9:00 a 18:00h (total: 32hs)

Nea Guinea 23-31st August: “Build a small wind turbine” construction course in Nea Makri, Greece.  This course will be led by Kostas in English. September 6th to 10th. St. Pölten in Austria.  This workshop is based on my newer “2F” ferrite wind turbine design.  This course will be led by Jonathan in English.

Otherpower  October 2014 — Fort Collins, Colorado. HANDS-ON. Exact dates TBD. Registration opening soon!

V3 Power 10th to 12th October 2014 – Wensor Bridge Farm, Nottinghamshire, NG23 5JQ UK – £250 – Price includes all food and camping accommodation on-site, bnb’s available nearby.

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Ferrite magnet wind turbine plans books printed out

2F Wind Turbine Construction Manual

My new plans for making a 2 metre diameter wind turbine using the more durable ferrite magnets are now available in hard copy form by post from me. It’s the same as the ebook version but printed in 2 columns in a 52 page book.

2F manual delivered to:

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Hungarian translation of the Recipe Book

recipe_cover_hunThe Hungarian Translation is now available on Scribd as a pdf file.

For other translations and ebooks see this link.

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Build a wind turbine Austria 6-10th September

flyer-wind-sonnenpark copy

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DIY Wind Turbine Workshop in Bicester

Community Action Groups Oxfordshire

Thursday, 31 July 2014 at 10:00 - Sunday, 3 August 2014 at 18:00
Bicester, United Kingdom with V3 Power

In this 4-day course we collectively build a 1.8m rotor diameter 300W wind turbine from scratch, in a community workshop..
Participants will:
- Develop practical skills such as welding, woodwork, electronics and working with resin.
- Develop knowledge of the theoretical aspects of wind energy, aerodynamics and alternator theory.
- Experience working in a team.
- Have fun!
On the Sunday afternoon, we will aim to practice setting up the completed wind turbine temporarily at a local site”




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2014 English Units Recipe Book available as ebook

My Wind Turbine Recipe Book comes in two editions: Metric and “English Units” (also known as “Inches” or “North American” edition).  I had to publish the English units edition because the 46x30x10mm magnets, and the metric wire sizes that I normally use are not available in the USA.  In America generally you will find that Inches prevail, and also the rather limited range of AWG wire sizes.  The English Units edition is based on 2″ x 1″ x 1/2″ neo magnets.

cover inches 2014The English units edition is not a simple conversion of the sizes into inches and AWG etc.  It is a subtly different set of designs that works with these subtly different magnet and wire sizes.  My advice is not to mix the two books although the result will kind of work if you do.  Choose one system and follow the recipe for that.

Up to now the English Units edition has only been available in hard copy direct from me and from other outlets in America.  Now for the first time I have published it (in fully updated form for 2014) as an ebook (epub and mobi files etc) via Smashwords.  In due course it will appear at all ebook stores, Amazon Kindle, Apple, Kobo, scribd, etc…  For now you can buy it directly from Smashwords, here.

The $9.99 cost is a little higher than the cost of the 2010 kindle metric edition, but for North American readers I would say it is well worth the difference.  Similarly the 2013 metric edition is a better idea than the older 2010 Kindle one, although this 2013 is only available in pdf for now.

Book title Hard copy ebook
Wind Turbine Recipe Metric 2013 2013 pdf

2010 kindle

Wind Turbine Recipe Inches 2012 2014 all
2F construction manual   2014 all
Windpower Workshop 2011  
Scrapyard Windpower Realities (classic)   1992 all


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Performance data for two Recipe turbines

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.


Measured energy production versus the tabulated predictions in my book.


A similar test had already been done on the 2.4 metre diameter turbine on the same site, although windspeeds were a bit lower.

I love Windpower” is a charity based in Holland with operations in Mali, Tanzania, Malawi, Brazil and Mexico.

They “Educate people in developing countries in small-scale wind energy and in running a business to manufacture, install, sell and maintain small wind turbines.”

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