According to recent postings on Cleantechnica.com, large wind turbines need to generate about 3kW to supply a home (a planned wind farm in KS has a capacity of 250MW and will satisfy the needs of 85,000 homes). A small rooftop turbine works out to 6 kW/home, due to the lesser efficiency of smaller blades. The small rooftop model seems terribly expensive ($6.70 per kW), so I'll stick with the 3 kW/home number.
They also state that the average home uses 670 kWh/mo, which is 70% higher than our usage (see yesterday). This means almost 800,000 homes could be served with a 1000 MW coal plant.
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