hi This paper presents the system-level and component design of a micro wind turbine power plant on a chip. Using silicon micro fabrication processes, it has been suggested that common power generation systems could be miniaturized efficiently. These micro engines convert the kinetic energy of the hot air into mechanical energy and which is then converted into electrical energy. The fabrication approach is based on lithography, deep reactive ion etching, and aligned bonding of silicon and glass wafers. Expected power levels range from 1-12 W per chip with energy conversion efficiency in the range of 1-11%. Our paper focuses on converting the waste heat from the automobile (car) engine and also to avoid pollution. The paper mainly explains about the under lying principles of MEMS and pollution control.