Here are the 4 key factors when deciding whether to invest in wind turbines:
The generator must be placed higher than all obstructions within 500 feet in all directions, by at least 30 feet plus the blade radius.
At most locations, wind energy is less consistent than Photo-Voltaic (Solar Energy panels) , and usually peaks at different times. Wind is best used in a hybrid system with PV.
If tree growth at the site is not influenced by the prevailing wind (at least slightly visible flagging), and the wind is not a frequent nuisance, then the energy potential does not justify the investment.
For a tower structure, budget 1 to 2 times the cost of the generator. (Adding tower height is the cheapest way to gain greater and more consistent energy yield)
From The Alternative Energy Store —
Windsites assessment tool: find out whether you could save on energy bills by setting up a wind turbine on your land
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