A wireless sensor network consists of an enormous number of sensor nodes. Every sensor node senses environmental conditions such as heat, light, force and transmits the sensed data to a base station which is an extensive way rancid in universal. While the sensor nodes are powered by inadequate power batteries, in regulate to lengthen the lifetime of the network, minimal energy consumption is important for sensor nodes. Spread Energy Efficient Clustering scheme for heterogeneous wireless sensor networks, which the Base Station ensure that the high energy nodes becoming a gateways and cluster...