Garbage is one of the issues that are still being resolved. The trash volume continues to grow and has developed into a severe issue in Karawang, particularly at the University of Singaperbangsa Karawang. Converting trash into electrical energy is one of the waste applications. Utilizing a waste power plant (WPP) is one method of converting garbage to electrical energy. The waste energy plant comprises many significant components, including boilers, incinerators, turbines, generators, control panels, and the mainframe. Stainless steel plates, iron plates, stirrup iron, brass, L iron, hollow iron, bricks, cement, iron pipes, and stainless steel pipes are the materials required to manufacture WPP. The test procedure produced a maximum pressure of 5 bar, a combustion chamber temperature of 162.2°C, and an alternator voltage of 21.9 volts using data acquired from 180 minutes of burning with heterogeneous or mixed trash. After 135 minutes of burning wood, the pressure in the combustion chamber is 5 bars, and the temperature is 205.4 degrees, producing an alternator voltage of 22.1 volts.