From Great Lakes Wiki
Q: How many homes can be supplied by each MW of wind power?
A: An average Great Lakes household uses roughly 10,000 kilowatt hours (kWh) of electricity per year (833/month). A 1 MW wind generator in a good Great Lakes location will produce about 2.2 to 3.0 million kWh a year. Therefore, 1 MW of wind generates as much electricity as needed for about 220 to 300 homes.
Of course, wind doesn’t blow all the time, so it can’t be reliable as the only electricity source, without electricity storage of some kind. The approximate number of homes served is just a convenient and easy to understand measure of electricity production. Typically, storage isn’t needed, because wind provides only some of the power on a utility system, and other sources fill in when the wind is not blowing. At the best wind sites in Michigan, a typical utility scale wind generator will produce some useful electricity practically every single day of the year and as much as 90% or more of the hours of the year.
