The average wind speed in the Betws area now is 12 mph, an effective wind speed of only 3 mph because it takes 9 mph to start the turbines. Even when they start they are effectively useless. Today is the tail end of a cold east front, very soon the wind speed will drop away again. It is difficult to imagine a more inefficient way of generating power. Coal is always fired up, sometimes it is at maximum capacity. So wind turbines save nothing on fossil fuel burning.