All I can add to the above is have realistic expectations from a wind
There has to be wind
diameter matters for it to work. The rest is superfluous.
A 400W rating means no more than the wire size and low wind start up means it will spin but not deliver much.
At the end of the day my solar
wins hands down but at night and overcast days the wind turbine is a good back up but no more than that.
Dollar per Watt you cannot beat solar
not to mention the maintenance
and headaches. Honestly if you were closer I would give you mine for free! Its useless.