Most of India has a solar capacity factor >0.2 and low seasonality. That means even 5kW peak rooftop panels and a 10 kWh battery will get you over 95% almost always. And panels+labor is so cheap in India, there's really no reason not to just tile the roof in panels.

Things get more difficult in dense cities, if you have multi story apartment blocks going 90+% locally is impossible. But then just transmit power from lower density rooftops, or actual solar farms.

And this already assumes widespread AC (really no way to increase electrification this much and not add AC in that climate).

India’s Clean Energy Boom Halts Coal Power Growth - https://oilprice.com/Latest-Energy-News/World-News/Indias-Cl... - September 18th, 2026

Ember Energy: India - https://ember-energy.org/countries-and-regions/india/ - Last Updated: June 4th, 2026

Ember Energy: Battery storage is now cheap enough to unleash India’s full solar potential - https://ember-energy.org/latest-insights/battery-storage-is-... - April 7th, 2026 ("Ember’s analysis shows how solar and battery storage can meet as much as 90% of India’s electricity demand at lower LCOE than the average power purchase costs in most states.")

- Solar and batteries could supply 90% of India’s electricity demand at a competitive LCOE of around INR 5.06/kWh ($56/MWh).

- 4.9 GW of solar and 13.5 GWh of battery capacity for every 1 GW average demand load is enough to meet 83-92% of annual electricity demand in the ten largest states.

- 7 of India’s largest states by electricity demand can meet 90-92% of their demand with solar and batteries at an LCOE between INR 4.96–5.09/kWh ($55–56/MWh).

Ember Energy: India’s electrotech fast-track: where China built on coal, India is building on sun - https://ember-energy.org/latest-insights/indias-electrotech-... - January 22nd, 2026

- 27% of India’s electricity was generated from clean sources in 2025. It was the 3rd largest country by electricity demand.

- As of March 2026, India was one of only ten countries planning to triple non-fossil generation capacity from 2022 levels by 2030. By December 2025, the country had achieved 258 GW of installed renewables capacity, making progress towards its 2030 goal of 500 GW. Ember analysis suggests that, under current plans, renewables would reach 42% of generation by 2030.