Wireless Sensor Network (Wsn) Is Conveyed In Numerous Fields, For Example, Social Insurance, Condition Control, Astute, Structures, and So Forth. It Comprises of an Arrangement of Little and Low-Control Gadgets Called Sensor Nodes Which Cooperate With Their Condition to Detect Physical Marvels. In the Wake of Being Sent on the Territory to Screen, These Nodes Are Equipped For Neighborhood Handling, Correspondence and Self-Association. Truth Be Told, They Gather Ecological Data and Cooperate to Transmit the Information to at Least One Accumulation Focuses (Sinks) In an Independent Way. the Zigbee Standard Intends to Permit the Interconnection of Wireless Gadgets With Low Self-Sufficiency (Battery Fueled) and Does Not Require High Piece Rate, This Standard Speaks to a Perfect Contender For Wireless Sensor Networks. Wsns Must Work at any Rate For a Given Mission Time, and All the While Supplanting Nodes' Batteries Is Regularly Incomprehensible. Thus, the Lifetime Forecast For Wsns Turns into a Noteworthy Concern. For a Dependable Lifetime Forecast, a Total Energy Consumption Investigation Is Fundamental. In Like Manner, It Ought to Think About the Most Essential Wellsprings of Energy Consumption, In Particular Transmitting and Accepting Information Bundles, Tuning In to the Channel, Transmitting, Getting Control Parcels and Getting Parcels from Neighbors.