Bulletin of Pure & Applied Sciences- Physics

The electrical current arises in a conductor when an outside force acts upon the free electrons of the conductor. This force is called, in a generic way, of electromotive force (EMF). Usually, it has electrical nature. Here, we show that it can have gravitational nature (Gravitational Electromotive Force). This fact led us to propose an unprecedented system to convert Gravitational Energy directly into Electrical Energy. This system, here called of Gravelectric Generator, can have individual outputs powers of several tens of kW or more. It is easy to be built, and can easily be transported from one place to another, on the contrary of the hydroelectric plants, which convert Gravitational Energy into Hydroelectric energy.