Currently energy in the form of electricity is stored by the following methods. Why electricity? The main reason is its versatility to convert to other forms of energy, like light, heat, movement makes it the best candidate. Another reason is that we can effectively store electricity.
1) Nuclear
2) Wind turbine
3) Hydroelectric generation
4) Bio Gas – using manure that decomposes and produce methane which can be havested and burned
5) Solar electricity harvesting

