Reply #23: Remember, that it's not practical for every dwelling to have a dedicated wind turbine

[OKIsItJustMe]

(Install Ubuntu on your old computer, that will breathe new life into it.)

Over half of our people now live in urban areas. Many live in multi-dwelling buildings. For a city, a wind farm many miles away makes sense.

For people who live in rural areas, there are economies of scale to be recognized in building large turbines. First, there's the obvious, of only having one large machine to maintain rather than several smaller ones, but then there's the point that the best winds are higher up (where the hubs of large turbines are.)

Finally, there's the matter that some areas are simply better suited to wind generation than others.
http://www.eere.energy.gov/windandhydro/windpoweringamerica/wind_maps.asp