Wind Power Chart


The power generated from a windmill depends on both the wind speed and the size of the blades.

Wind Power Chart
Output Rating Blade Kilowatt Hours at Various Wind Speeds
(watts) Diameter(ft) 8 mph 10 mph 12 mph 14 mph 16 mph
100 3 5 8 11 13 15
250 4 12 18 24 29 32
500 5 24 35 46 55 62
1,000 7 45 65 86 100 120
2,000 11 80 120 160 200 240
4,000 15 150 230 310 390 460
6,000 18 230 350 470 590 710
8,000 21 300 450 600 750 900
10,000 24 370 550 730 910 1,100

For example, if the average wind speed at the site is 12 mph, a small 100 watt generator will turn out only 11 kWh, but a 2,000 watt generator will produce 160 kWh and a 10,000 watt generator will product 730 kWh.