wind turbines supply power in the absence of solar energy (good idea to have both), especially during storms. Apparently traditional horizontal wind turbines cause bird death according to a study in CA.
Windspire vertical wind turbine $3995
see article. 1kWh. ~1900kWh/yr. ground-mount.
WePower vertical wind turbine.
see article from HGTV's Living with Ed episode HLWED-205. models range from 0.5kWh to