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How Delhi cut electricity loss from 50 to 5 percent

592 points · 336 comments · rbanffy

  1. thelastgallon · · focus · HN ↗
    India has one thing going for it, sunlight all the time.

    India can adopt plug-in standards, solar and batteries. I guess most people use some form of battery (UPS/Inverter) anyways, so the idea is familiar.

    Rooftop is known and it can continue to grow. Next, add vertical solar. This will add ~4 hours of solar production.

    Required gated communities to be self sufficient or net producers. Cover the surfaces of all high rises with vertical panels. Require these communities to have BESS and EV charging for all car parking. This adds two layers of storage. BESS instead of diesel generators. Add outlet for induction stove. No need of piped gas. I've seen villa communities where most homes are net producers, these ideas are happening, need to be standardized as regulation. Easiest thing is to create standards for the gated communities, which can be enforced.

    Don't build rural transmission infrastructure. They can be offgrid, using solar and batteries. It is not worth the cost to build and maintain transmission and distribution infrastructure to millions of small villages.

    Work towards regulating uber/rapido to require EV cars. These drive the most miles in cities and would do wonders.

    Lots of scope for growth.

    1. idiotsecant · · focus · HN ↗
      Great, sounds like youve planned for the 1/3 of the electrical load that residential usage represents.
      1. toomuchtodo · · focus · HN ↗
        Our World In Data: Installed solar energy capacity: India - <a href="https:&#x2F;&#x2F;ourworldindata.org&#x2F;grapher&#x2F;installed-solar-pv-capacity?country=~IND" rel="nofollow">https:&#x2F;&#x2F;ourworldindata.org&#x2F;grapher&#x2F;installed-solar-pv-capaci...

        India’s Clean Energy Boom Halts Coal Power Growth - <a href="https:&#x2F;&#x2F;oilprice.com&#x2F;Latest-Energy-News&#x2F;World-News&#x2F;Indias-Clean-Energy-Boom-Halts-Coal-Power-Growth.html" rel="nofollow">https:&#x2F;&#x2F;oilprice.com&#x2F;Latest-Energy-News&#x2F;World-News&#x2F;Indias-Cl... - September 18th, 2026

        Ember Energy: India - <a href="https:&#x2F;&#x2F;ember-energy.org&#x2F;countries-and-regions&#x2F;india&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ember-energy.org&#x2F;countries-and-regions&#x2F;india&#x2F; - Last Updated: June 4th, 2026

        Ember Energy: Battery storage is now cheap enough to unleash India’s full solar potential - <a href="https:&#x2F;&#x2F;ember-energy.org&#x2F;latest-insights&#x2F;battery-storage-is-now-cheap-enough-to-unleash-indias-full-solar-potential&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ember-energy.org&#x2F;latest-insights&#x2F;battery-storage-is-... - April 7th, 2026 (&quot;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.&quot;)

        - Solar and batteries could supply 90% of India’s electricity demand at a competitive LCOE of around INR 5.06&#x2F;kWh ($56&#x2F;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&#x2F;kWh ($55–56&#x2F;MWh).

        Ember Energy: India’s electrotech fast-track: where China built on coal, India is building on sun - <a href="https:&#x2F;&#x2F;ember-energy.org&#x2F;latest-insights&#x2F;indias-electrotech-fast-track-where-china-built-on-coal-india-is-building-on-sun&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ember-energy.org&#x2F;latest-insights&#x2F;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.

        1. dyauspitr · · focus · HN ↗
          5 INR&#x2F;kWh? That can’t be right, that’s ridiculously cheap at $0.04&#x2F;kWh.
          1. someonebaggy · · focus · HN ↗
            How are wages?
            1. dyauspitr · · focus · HN ↗
              Low at $12k per capita PPP adjusted. But it seems like most panels are imported or assembled. I don’t see how you can have electricity that cheap in this case.
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