ABSTRACT 

The problem of epileptic power supply and its consequences in the developing countries is a generally known issue. Worst still, the hope that it will be addressed with the deregulation of electricity Industries in recent time are being dashed by flight to top class investors due to its poor implementation. There is a need to provide multiple sources of power and automatic mechanisms for switching from one source to another. This is achieved in this work where quadruple power supply is provided with Arduino microcontroller to control the entire system. The four different sources of power supply (utility supply, fuel cell, inverter and generator) are connected to four different power supplies for rectification purpose. The output of the rectifier is connected to the fourdifferent analog input pin of the Arduino microcontroller. The power sources are prioritized; at the absence of the first source the Arduino microcontroller switches the load to the next available source. At the absence of the first three sources the Arduino microcontroller sends a signal to an LED which light up for five seconds. The LED is a model use for the kick starter mechanism in the real-life application. LCD(liquid crystal display) can be used to display the source currently in use