Monthly Archives: November 2010

Testing an alternator for a 12 footer at Otherpower

Dan Bartmann in action at Otherpower building and testing a new design alternator for a 12 footer (3.6 metre diameter turbine).  See his full description on the otherpower discussion board of this machine with 15 inch magnet rotors, and thick … Continue reading

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work platform

Nice photo by Stephen Smith, from Alan Engelstad in Canada.

Posted in construction | 2 Comments

Wind turbine controllers for optimising blade speed

Efficient wind turbine alternators connected directly to batteries do not have the right speed range to make the best use of the blades.  Adding a controller that converts the voltage between the windmill and the batteries can improve performance (rather … Continue reading

Posted in products/technical | 2 Comments

Hubert MARIN video en Francais

http://www.consommer-responsable.fr/magazine/article/une-eolienne-dans-son-jardin-0

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Counter program in Visual Basic

Julio Costa <costajules@gmail.com> has written a simple program in Visual Basic to help him with the counting of the turns on each of the coils. “Rather than building an electronic counter, I’ve implemented it in software, so if one has … Continue reading

Posted in construction, People | 1 Comment