excellent data! I just took a look at it, so you know exactly what you can get. You want to be looking at the annual output for the turbine for your average windspeed, then compare against your own annual power consumption, then decide how much you want to spend on the turbine compared to how much you can get for exporting the power. Scottish hydro power pay about 8p/kwh exported (inc ROC payment), so quite good return.
Andrew