So far wind has been uneconomical in Florida due to the relatively low surface wind speeds. This could make it more feasible as a night time backup to solar electric. Essentially by surrounding the fan with an airfoil lip, it pulls more wind across the blades, significantly increasing power output.
Yeah, I've wanted to make a vertical-axis turbine as a side project for a while. The nice thing about them is that they don't need any orientation mechanism: wherever the wind comes from, it will hit the blades.