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The major objective of the protocol proposed in this paper is to optimize the amount of energy used for transmission in Wireless Sensor Networks (WSNs). This paper introduces an approach called Piezoelectric Effect Synchronous Multicast approach (PESM) that conserves the energy of sensor nodes and thereby improving the lifetime of the network. By applying this technique; we can regenerate an electrical effect to the nodes of WSN from natural resources. The energy required for sensor nodes is obtained by scavenging the energy from green resources. From our experiments we observe that PESM is able to improve the lifetime of the wireless sensor networks considerably.