Below is the Wind hours in miles per hour recorded by Hillview Weather Station, Harrow, for today, Sunday, "February to Date" and "2012 to Date"*.
What wind speed do I need to operate a small/micro wind turbine?
In general, most small/micro wind turbines start to generate electricity at wind speeds of 3-4 metres per second (m/s), or 7-9 miles per hour. Most small/micro wind turbines achieve their rated output at wind speeds of 10-12 m/s or 22-27 mph. Therefore the greater the wind speed the better.
From the data above there is no possibility of any useful wind generated electricity at this site in Harrow.