Direct alternative current is controlled and supplemented by the Uninterrupted Power Supply (UPS) network, an external power supply. Originally, it was used for computer systems, but it found its use in various areas such as factories, cordless phones, engines, etc. when its valuable benefits were observed It can be used as an inverter for getting long power back up. Depending on demand and supply you can choose the size and functions of the UPS. Critical load shedding and unpredictable power supply disruption can be managed using UPS of good quality.