Gravitational Power Plants using the Semi-Perpetual Motion Concept

In the past few years, energy sources have been depleting so that it will experience a shortage of fuel for electricity generation. Therefore, alternative energy sources are needed to produce electricity from renewable sources. One method that can be used as an electric energy plant is gravitational energy. The method has advantages over other energy sources because it does not require fuel and does not pollute the environment. Many models of gravitational power plants have been carried out by researchers, but some have not been successfully implemented due to several limitations. Including friction factors that cause loss of kinetic energy. In this study, a model of gravitational power plants was designed using a pair of spur gears mounted on a non-parallel shaft. The energies supply mechanism is then added to the system, which is called the semi-perpetual motion. The gravitational power plant engine model that is designed can produce shaft mechanical energy, although some improvements still need to be made to some component parameters. The model can be further developed so that the mechanical energy can be produced more efficiently.