Buildings, transport and industrial sectors are increasingly betting on electrification to reduce their carbon emissions. This makes scaling up renewable power all the more critical. India is expected to add more than 350 GW of renewable power capacity (including large hydro) in this decade. This is over four times the renewable power capacity added during 2010-2020. 75% of this capacity expansion will come from variable solar and wind power. This makes it necessary to add balancing sources like energy storage systems (ESS) to maintain grid stability.