Demand Surges, Coal Stocks Fall: The Power System's Quarter

The 270 GW Peak & Generation Shifts

The Centre for Research on Energy and Clean Air published its India Energy Snapshot for the second quarter of 2026-27, covering July to September 2026, in October. It is a research organisation's analysis of official data, and we have not verified the underlying figures. Some of its statistics are surprising enough that we want readers to see them with their qualifications.

Demand: Peak demand reached 270 GW on 16 July 2026, which CREA said was up 18% from 230 GW in the same quarter of 2025-26. Our own arithmetic gives 17.4%, and the difference may be rounding in the underlying numbers. The daily peak fell during solar generation hours on 62 of the 92 days, which is a change from the traditional evening peak. The highest state peaks were Uttar Pradesh and Maharashtra at 27 GW each, then Gujarat at 23 GW and Tamil Nadu at 20 GW.

Generation: Total generation rose 11% year on year to 536 billion units. Coal and lignite generated 351 billion units, about 66% of the total, up 12.5% from 312. Solar grew 39%, wind 29% and nuclear 26%, while hydro fell 20%. Renewables excluding large hydro passed 100 billion units for the first time, at 101. Non-fossil generation reached a record 177 billion units, up from 163.

Base Dynamics & Clean Supply Limitations

Coal generation grew 12.5% in absolute terms, even as renewables grew faster in percentage terms. Because coal is the larger base, its increase added more units than the increase in non-fossil generation: about 39 billion units of extra coal generation against 14 billion units of extra non-fossil generation, by our subtraction of CREA's figures. Hydro's fall of 20% also required other sources to fill the gap. The summary is that demand grew fast enough that clean generation could not meet all the growth.

“Coal added about 39 billion units. Non-fossil sources added about 14. Growth in demand was larger than growth in clean supply.”

Coal Stock Drawdowns & Plant Utilisation Realities

Coal stocks: CREA reported that coal consumption at power plants stayed near 79 million tonnes per month from June to September, while dispatch to plants fell from 74 million tonnes in May to 66 million tonnes in August. Plant stocks dropped to 21 million tonnes by 30 September, about 36% of the 58 million tonne normative requirement. The number of plants with stocks below 25% of their requirement rose from 32 on 22 August to 85 on 1 October. Those figures suggest a tightening position. They do not by themselves mean shortages, and the snapshot does not report outages.

Coal plant utilisation and new capacity: The average plant load factor of coal plants was 68%. About 44 GW of coal capacity is under construction, of which about 90% is below 50% completion. In plain terms, most of the new coal capacity is not close to being available, and the system will rely on existing plants and non-coal additions in the near term.

Guide to Interpreting Power System Metrics

How to read power data: our guide: 1. Separate peak from energy. A peak is one moment; energy is the total across the quarter. 2. Compare absolute and percentage changes. A larger percentage on a smaller base adds fewer units. 3. Look at the timing. Daily peaks in solar hours show how the system is changing. 4. Check stocks as well as flows. A fuel position can deteriorate before a shortage appears. 5. Mind the weather. A weak monsoon raises demand for cooling and irrigation pumping, and reduces hydro.

Industry Implications & Caution on Seasonal Outliers

What it means for industry: Industries with continuous operations depend on reliable supply. A tighter coal position raises the importance of backup arrangements and, for large users, of contracts that include renewable supply with firming. Businesses can ask their distribution company about outage history in their area.

What it means for households: Households feel the system through outages and tariffs. Tariff decisions are made by state regulators, and our sources do not discuss them.

What we do not know: We do not know whether low coal stocks led to outages, how stocks have moved since 1 October, or how the festive season and winter demand will compare. The snapshot did not report emissions or air-quality figures.

A caution on single-quarter stories: One quarter of strong demand does not establish a trend, and a monsoon that disappoints can inflate demand for a season. Readers should compare the next quarter's snapshot, when winter heating and the end of the irrigation season change the pattern, before concluding that the system has structurally changed. CREA's snapshot is also one organisation's reading of official data, and a second source would strengthen any conclusion.