We've got an air breeze. Throughout the western Caribbean it never made as much power on average as the solar panels (and I'm adding more before we go again). When it was windy it was great, but anchored for several days next to a boat with a kiss.....I know what I'm getting when the breeze dies!!
Boat: Morgan 33 OutIsland, Magic and 33' offshore scott design "Cutting Edge"
Re: wind generator
I'd stay away from sw windpower products. I've had an awful time trying to keep mine working and every part has failed shy of the case and armature. Parts are expensive and customer service hard to contact. Stator $187 similiar stator for 10si alternator is $30. They probably make as much money selling replacement parts as they do selling complete units.