David_b wrote:F&P WM Motor Wind Generator. It’s rad!
Search for "hugh piggot" on google - has full plans in book form on how to convert a permanent magnet relutance motor for alternator/generator use - Wind turbine primarily, but it could be used for excerise bike, microhydro just to name a couple
. It's just a matter of enough torque and rotational speed, only limited by your imagination.