This supply chain diagrams focuses on how to produce wind energy. From this diagram, the raw materials, like steel , cast iron, fibre glass and rubber, should offer to the manufacutor to produce blades, tower, nacelle, and generator. A supply chain, the management of the flow of goods and services, it involves a series of steps involved to get a product or service to the customer. Basically it is network of all the individuals, organizations, resources, activities and technology involved in the creation and sale of a product.