This project is a part of the master thesis for the course Energy smart innovation in the built environment at Halmstad University. This project is done to check the feasibility of VAWT on replacing traditional horizontal axis windmills, costly offshore windmills, and other renewables. As Micro VAWT are smaller, they can be placed where traditional windmills will not be. To stress the point, these can be placed in places like traffic islands and open garden areas.  Lots of such projects are currently ongoing in different parts of the world. Sweden is lagging in this technology diffusion. We concluded that VAWM couldn't alone be used to replace traditional HAWTs or be enough to reach the full renewable target. They can be used in conjunction with HAWT to boost production and efficiency, and we also found other similar uses for VAWM. A business model is suggested so as for the optimal diffusion of VAWT. Our proposal of a micro VAWT of 1.8 million was able to produce 1.41TWh.We found that it was not possible to achieve with VAWT alone.