We ran a course in early 2012 to construct a 4.2m machine for Terrance’s house over in Rossport. After a few setbacks “Salmon” the turbine was erected just before Christmas and other than a brief period of downtime due to an undersized tail it has barely stopped spinning since!
The stator was wound as a 48V battery charger however we’re currently letting the DC volts run up as high as 125V using a pair of LDR 96-15 to clamp the voltage. These put power into a “110V” 3kW immersion heater (from http://www.therightelement.co.
When his budget affords Terrance will get a grid tied inverter but for now he’s got lots of heat and is burning less gas!