colinf said:

You're going to want to look for a DC motor that has

1. a permanent magnet (most do)
2. Low RPM
3. High Voltage
4. High Current

Basically, you want to produce the most possible power at the lowest rpm possible. If you can find a motor at around 400 RPM that takes 30V, that's pretty darn good.

Thanks, I'll check out ebay or something. Any other places I should look?

acoliarti said:

Hi All,

What is the best motor to use when building a windmill? Should I choose one with low RPM and high voltage? Or the opposite? Specifically I'm looking for model #s or something like that.

I'd be interested to find this out too.