Located in the small town of Narora (Uttar Pradesh), the Narora Atomic Power Station (NAPS) services the northern power grid of India. The plant consists of two PHWRs, the first of which (Unit-1) began commercial operations on January 1, 1991. Unit-2 followed on July 1, 1992. NAPS became the first ISO-14001 certified atomic power station in Asia and also received the Golden Peacock Award from the World Environment Foundation for its efforts in environment preservation. As of February 28, 2003, NAPS reactors had achieved a cumulative generation of 28,366 million units (MUs) since they began commercial operations. Unit-1 registered 14,231 MUs of this total while Unit-2 accounted for 14,135 MUs.