Does reliance energy store the energy in order to supply in emergency to whole city?

Question

storage of electric energy? how much do they store? and how much does it costs to them in storing the energy?

Answer 1

I do not believe there is presently any practical way for them to store the energy they have to increase the production or purchase energy from other sources when the demand is increased

Answer 2

electric energy not get stored..in such a way.. it troasnferred to  the sub stations.. from where it is distrubted to  ther other places.. as per requirements..