LOAD MONITORINGLoad monitoring is the technique of tracking the various types of electricalloadscoming on to thepower systemduring a given period of time. Non-intrusive monitoring isthe monitoringof any system or a parameter of the system without actually entering the system i.e., without the system feeling the presence of the monitoringsystem.Hence, non-intrusive load monitoring isthe monitoringof theelectrical loadcoming onto the system without actually entering the premises.The interest among the research community to obtainindividualload information such as the nature of the load, itsenergy consumption, the duration for which it comes on to the system and the time of the day when it was on and off etc. in a network has given rise to many methods of doing so. However, majority of these methods are intrusive3 in nature since they require the installation of sensors and otherdata acquisitionhardware to each device in the circuit. This not only makes the system intrude into consumers property but also makes it very expensive. Load monitoring is the technique of tracking the various types of electricalloadscoming onto thepower systemduring a period of time. NALM isthe monitoringof any system or a parameter of a system without actually entering the system. NALM has wide range of applications such as power monitoring of devices, monitoring of remoteloads& monitoring ofindividualloads. Also CIMS (centre for intelligent Monitoring system) is used to monitor wide range of parameters such as temperature, Light pressure, colour, sound radio freq., electrical current and voltage etc. To conclude that, non-intrusive load monitoring is a very cost effective monitoring system in many applications. This can also provide a very convenient and effectivemethodof gathering load datacomparedto traditional means of placing sensors on each of theindividualcomponents of the load.