New Delhi, April 7 -- Battery storage costs have declined sharply, making it possible for solar power to meet up to 90 per cent of India's electricity demand at costs lower than prevailing tariffs in most states, according to a report by energy think tank Ember.

The analysis estimates that solar combined with battery storage could deliver electricity at a levelised cost of around Rs 5.06 per kWh (USD 56/MWh), making it increasingly competitive with existing power purchase prices.

Duttatreya Das, ‍Asia Energy Analyst, Ember, said, "Solar and batteries are already delivering power below the prevailing power purchase costs in many states, while rivalling coal in terms of reliability. From here, the economics only becomes more compell...