Wireless Sensor Network is a wide Research area in today due to its large applications in the Health monitoring, environment monitoring, Radiations, Nuclear Threats detection, army intelligence, signal communication, Biomedical, etc. WSN is providing the large solutions at a low price for real world problems. In wireless sensor network , sensors are cheap and limited energy for operations. For work properly of a sensor in wireless sensor network energy consumption of the sensor must be low so that it can operate for a long time and can communicate properly. In this paper, we will study the energy efficient secure routing protocol for low energy consumption. The energy consumption techniques are Designed Path (DP), Earliest First Tree(EF-TREE), Source -Initiated Dissemination (SID), Fuzzy Variable Energy Efficient Clustering Protocol (FZ-LEACH) and optimized Energy Efficient Routing Protocol (OEERP).

Keywords : Wireless Sensor Networks (WSNs), Low-Energy Adaptive Clustering Hierarchy (LEACH ) & Secure Positioning for Sensor Networks (SPIN).