India, April 7 -- Battery storage is now cheap enough to enable solar power to meet as much as 90 per cent of India's national electricity demand at a competitive levelised cost of electricity (LCOE) of Rs 5.06/kWh ($56/MWh) than current average power purchase costs (APPC) in most states, signalling a major shift in the country's power economics, according to a new analysis.

The report, Battery storage is now cheap enough to unleash India's full solar potential by Ember, a global energy think tank, estimates that achieving this will require around 930 gigawatt (GW) of solar capacity and 2,560 gigawatt-hour (GWh) of battery storage, which is equivalent to 4.9 GW of solar and 13.5 GWh of storage for every 1 GW of average demand. Even at th...