Driving back from Indianapolis to Chicago, we went past this brand spinning new wind farm right next to I65. It was still under construction just a couple months ago. This is the closest I've seen wind turbines next to a freeway. I have a closer photo I'll post later. Anyway, once they figure out the storage issue to make it more dispatchable, and work out the mechanical kinks with gear failure, we will see wind grow. Any new technology goes through learning curve. Back when, people were getting killed by steam boilers blowing up all the time on steamships till they set up design codes and improved their understanding of the design limitations.
Hard to beat free fuel, so wind will be part of the mix for a while.