Electricity storage system: A Gravity Battery

The present energy storage systems such as lead acid batteries or lithium ion batteries have many drawbacks. The most important drawback is their adverse environmental impact, disposal problem, efficiency and charging time. We have renewable sources of energy such as solar and wind which can solve the environmental problems to a great extent. We all are aware of the fact about intermittency of wind and solar, hydro has the limitation of space requirement. Resources are free but not always usable and storable. To overcome these problems, a gravity battery is proposed in this paper. These proposed batteries will store the electrical energy in the form of potential energy and when needed this potential energy is converted back into kinetic energy and run a generator to produce electrical energy. A physical prototype is designed, developed and demonstrated in this paper.