Re: bergey XL 1
It seems, for the most part, the "turbines" are the "cheaper" part of a wind system. Tower, cabling, battery bank, labor, maintenance all add up quickly.
Throw in a Midnite Classic wind power controller just pushes the price even higher (although, during testing Midnite found upwards of 3x more energy collected with an MPPT charge controller--Which makes a lot of sense. Alternators are not well matched to charging a voltage source for optimum output).
20x BP 4175B panels (replacement) + Xantrex GT 3.3 inverter for 3kW Grid Tied system + Honda eu2000i Inverter/Generator for emergency backup.