Wireless Sensor Networks (WSNs) are dense wireless networks of small, low-cost sensors, which collect and disseminate environmental data. WSNs facilitate monitoring and controlling of physical environments from remote locations with better accuracy. They have applications in a variety of fields such as environmental monitoring, military purposes and gathering sensing information in inhospitable locations. Sensor nodes have various energy and computational constraints because of their inexpensive nature and ad-hoc method of deployment. This paper is to study the methods and techniques by which the authors can preserve more power by means of delaying ID conflict resolution until necessary in WSN.