There is no doubt that unstable and erratic supply of electricity to support human endeavor in Nigeria has been a topic of dialogues over decades. Also distribution company only distribute energy at their own discretion without considering whether it is useful to end users or not. Several alternative salutations have been proposed to solve the problems arise from discretional supply of power to end users. This research work devised the design and implementation of the 1.5KVA Power Inverter to store the supply from the distribution company. This work designs and delivers electrical power supply that takes it source from a battery converting the zero variation signal of the generated DC voltage to a standard 240v AC sinusoidal voltage. The output of this research work will consists of an oscillator which inverts the DC signal to AC, a transformer that amplifies the voltage, MOSFETs which amplifies the current, relay for automatic switching and a charging back system to recharge the battery whenever there is an alternative mains (PHCN or generator).