Coal stocks critically low as power demand rises in India

1. At a Glance

• In late September 2026, 84 of India's 191 thermal power plants (TPPs) had critically low coal stocks, according to Central Electricity Authority (CEA) data as of 30 September 2026 [1].
• The Coal Ministry says the cause is a surge in power demand, not a coal shortage. The data shows a stock-adequacy problem at the plants all the same [1].
• The topic ties together energy security, monsoon variability (El Niño), the hydro–thermal mix, and coal logistics. These recur across GS-I, GS-III and Prelims.
• It is a repeat of the April 2022 stress episode, which came between record-high stock periods in 2024–25. This makes it useful for "structural versus cyclical" Mains answers [2][3].

2. Why in the News

• 28 Sep 2026: Union Coal and Mines Minister G. Kishan Reddy denied that India has a coal shortage. He said the problem is a surge in power demand [1].
• CEA data (as of 30 Sep 2026): 84 of 191 TPPs were at critical stock levels. The article reports this as "more than 44%" of plants. 84/191 actually works out to about 43.98% [1].
• Power demand rose 10% in 2026, the largest year-on-year increase in the past decade [1].
• September 2026 power shortages were the highest since August 2023, according to a Reuters report cited in the article [1].
• Hydropower generation fell, which the article links to El Niño and a weaker monsoon. This pushed more of the load onto coal plants [1].

3. Background & Evolution

• CEA coal-stocking norms: TPPs must hold stock for 12–17 days (pithead plants) and 20–26 days (non-pithead plants), calculated at 85% Plant Load Factor (PLF) [2].
• April 2022 crisis: 50 of 173 TPPs (about 44,176 MW out of about 2,03,347 MW) held less than 10% of normative stock [2].
• Institutional response: An Inter-Ministerial Sub Group meets regularly to improve coal supply to TPPs and ease critical stock positions. Its members are the Ministries of Power, Coal and Railways, the CEA, Coal India Ltd (CIL) and Singareni Collieries Company Ltd (SCCL) [2].
• Recovery phase (2024): PIB reported stocks at domestic coal-based TPPs enough for 18.5 days at the then level of consumption [4]. A later PIB release reported the "highest ever" coal stocks at TPPs [5].
• Peak (2025): Coal stock at TPPs reached an all-time high of 58.25 million tonnes (MT), enough for 25 days of consumption. PIB credited silo loading by Indian Railways [3].
• Demand trend: PIB recorded 7.30% growth in demand for coal-based power in one fiscal year compared with the same period a year earlier, calling it historically high demand [2].
• 2026 reversal: Stocks fell to critical levels at about 44% of plants under combined pressure from demand and weak hydro output [1].

4. Core Static Facts

5. Multi-Dimensional Analysis

Economic

• Demand growth of 10% in 2026 is outpacing gains in supply-side logistics. Shortages in September 2026 were the highest since August 2023 [1].
• Power shortages hold back industrial output. Thin plant stocks also make imported coal and blending more likely, which raises tariffs and the import bill. This is an analytical inference.
• A record 58.25 MT in 2025 fell to critical levels at about 44% of plants within roughly a year. Stocks are volatile and do not prove structural adequacy [1][3].

Environmental / Climatic

• El Niño weakens the monsoon, which cuts hydro generation and increases dependence on coal. This creates a climate feedback loop [1].
• India has had weaker monsoons in the last six years with strong El Niño events [1].
• Leaning harder on coal works against decarbonisation commitments. It strengthens the case for storage, pumped hydro and renewable firming, which is an analytical point.

Administrative / Logistics

• "No shortage of coal" at the pithead is not the same as "adequate stock" at the plant. The gap lies in rail rakes, evacuation and plant-level stocking discipline [1][2].
• Earlier recovery depended on Railways' silo loading and inter-ministerial coordination. These are the levers to watch [2][3].

Governance / Federal

• The official denial conflicts with the regulator's own data (CEA). This raises questions about transparency and how data is communicated [1].
• Plants that run out of stock trigger state-level load-shedding. Distribution companies (DISCOMs, run by states) bear the political cost, while coal allocation is controlled by the Union. This is an analytical point.

Strategic / Energy Security

• Coal remains the balancing source whenever hydro or variable renewable output falls. Stock adequacy therefore functions as a national energy-security buffer [1][2].

6. Recent Developments (last 12–18 months)

• 2025: Coal stock at TPPs hit an all-time high of 58.25 MT (about 25 days), helped by Railways' silo loading [3].
• 2026: Power demand grew 10% year on year, the highest in a decade [1].
• Sep 2026: Power shortages were the highest since Aug 2023, and hydro output fell, with El Niño linked to the decline [1].
• 28 Sep 2026: Minister G. Kishan Reddy denied a coal shortage and blamed the demand surge [1].
• 30 Sep 2026: CEA data showed 84 of 191 TPPs at critical stock levels [1].

7. Prelims Hooks

• The CEA calls a TPP "critical" when stock falls below 25% of normative stock or covers less than 3 days of generation [1].
• Normative stock for pithead TPPs is 12–17 days; for non-pithead TPPs it is 20–26 days [2].
• Normative stock is calculated at 85% PLF [2].
• CEA, not the Coal Ministry, publishes the plant-wise coal stock data [1].
• On 30 Sep 2026, 84 of 191 TPPs were critical [1].
• In April 2022, 50 of 173 TPPs held less than 10% of normative stock [2].
• The all-time high coal stock at TPPs was 58.25 MT, about 25 days of consumption [3].
• That record was credited to silo loading by Indian Railways [3].
• The Inter-Ministerial Sub Group on coal supply includes MoP, MoC, Railways, CEA, CIL and SCCL [2].
• SCCL (Singareni) is a coal supplier alongside CIL [2].
• El Niño is a warming of the central and eastern Pacific that weakens monsoon winds over India [1].
• Power demand rose 10% in 2026, the highest year-on-year rise in a decade [1].

8. Is the Minister Right? The Case for "No Coal Shortage"

• The strongest version of the Ministry's argument
• Only a year earlier, plants held a record 58.25 MT of coal, enough for about 25 days [3]. Mines and Railways can clearly fill plants when they plan ahead.
• A 10% jump in power demand in a single year is the biggest in a decade [1]. No supply chain is built for a shock that size.

• So, says the Ministry, the coal exists. Demand simply ran ahead of it.

• What the Ministry gets right

• Coal production is not the main failure here. The Inter-Ministerial Sub Group exists because the trouble lies in moving and stocking coal, not in mining it [2].

• Why the argument still does not settle the issue

• A power plant can burn only the coal sitting in its own yard. Coal at the pithead (the mouth of the mine) does not turn a turbine.
• Coal produces nearly 75% of India's electricity [10]. So when stock is short at 84 plants, the result is power cuts, whatever the national production figure says.

• The 2025 record was built up by deliberate stocking ahead of time [3]. So the 2026 slide shows planners did not forecast demand and hydro risk, and stock up early enough.

• How to write it in Mains: "Both claims are true at different points in the supply chain. The policy failure lies in the buffer, not in the mine."

9. What the 2022 Fix Cost, and Who Paid for It

• The Union forced plants to buy costly foreign coal
• In April 2022, the Ministry of Power asked states and IPPs (Independent Power Producers, private generators) to import 10% of their coal for blending (mixing with domestic coal) [6].
• Plants that had not ordered imports by 31 May 2022 were warned they would have to import in any case [6].

• The mandate was extended. Gencos (generating companies) had to keep blending at least 6% imported coal until March 2024 [7].

• Import prices were at record highs at that very time

• World coal prices hit records after the Russian invasion of Ukraine and a rise in industrial demand [10].

• So India bought insurance at the worst possible price.

• The bill went to the consumer

• The Ministry used Section 11 of the Electricity Act, 2003 (the Union's power to direct generators in extraordinary situations) to set a formula that compensates generators for the extra cost of blending [14].

• Compensation paid to generators ends up in the power tariff. That means DISCOMs (state electricity distribution companies) and their consumers pay it.

• Why this is a federal question

• State-owned gencos were ordered from Delhi to import coal [6]. The cost then fell on state DISCOMs, many of which are already in debt.
• If 2026 brings back the same fix, states will ask why they should pay for a stocking gap they did not create.

10. Why the Railway Track, Not the Mine, Decides Who Gets Power

• In 2022, coal trains pushed passenger trains off the track
• Railways cancelled 42 passenger trains to clear paths for coal rakes (a full goods train of wagons) [8].
• An RTI reply showed that over 1,900 of nearly 9,000 cancellations that year were made to move coal [9].

• Daily coal loading rose above 400 rakes, the highest in five years [8].

• What this tells us

• Shared tracks mean coal and passengers compete for the same line. In a crisis, one is sacrificed for the other.

• This is why the 2025 record came from Railways' silo loading (fast, automatic filling of wagons from storage silos) [3]. Speed of loading and track space are the real limits.

• What to watch in 2026

• Whether the Eastern Dedicated Freight Corridor and extra rakes, planned by Railways to ease coal transport [15], keep coal moving without cancelling passenger trains this time.

11. Why Storage Is the Real Cure, and Why It Is Still Years Away

• Coal is being used as a battery it was never meant to be
• When El Niño cuts hydropower, coal plants are the only large backup left [1]. Every weak monsoon therefore becomes a coal stock problem.

• Energy storage can take over part of this backup job. It saves cheap solar power and releases it when demand peaks.

• What the government has started

• Two Viability Gap Funding (VGF, a government grant that covers part of the cost of a project that would not otherwise pay for itself) schemes support about 43 GWh of Battery Energy Storage Systems (BESS), with ₹9,160 crore set aside [11].
• Inter-state transmission charges are waived for BESS projects commissioned, and pumped storage projects awarded, by June 2028 [11].

• Pumped storage (pumping water uphill when power is cheap and releasing it through turbines later) gets no VGF. The government considers its cost already viable [12].

• Why this will not help in 2026

• The schemes aim to meet BESS needs by around 2028 [11]. Pumped storage projects take years to build.

• Until then, coal stock is still the main shock absorber. That is why stocking norms and their enforcement matter now.

• The 2025 lesson

• In June 2025, India met a record peak demand of 241 GW with zero peak shortage [13]. That happened in a year of record coal stock [3].
• A good year with full yards was followed by a bad year with thin ones. Policy can control the buffer even when it cannot control the monsoon.

12. Anchors for Answers

• Data: Coal produces nearly 75% of India's electricity, so plant stock directly decides power supply [10]
• Data: Over 1,900 of about 9,000 train cancellations in 2022 were made to move coal (RTI) [9]
• Data: Peak demand of 241 GW met with zero shortage in June 2025, a year of record stock [13]
• Report/Committee: Inter-Ministerial Sub Group (MoP, MoC, Railways, CEA, CIL, SCCL) on coal supply to TPPs [2]
• Law/Case: Section 11, Electricity Act 2003: used in 2022 to direct gencos to import coal for blending and to set a compensation formula [6][14]
• Scheme: VGF for Battery Energy Storage Systems: about 43 GWh, ₹9,160 crore, to reduce reliance on coal as backup [11]
• Scheme: Imported-coal blending mandate: 10% in 2022, at least 6% until March 2024 [6][7]

13. Mains Relevance

• GS-III: Infrastructure (Energy); Indian economy and resource mobilisation; Disaster and climate risk.
• GS-I: Important geophysical phenomena (El Niño, monsoon variability).
• GS-II: Union–state relations in the power sector (secondary angle).
• Possible question stems: 1. India's recurring coal stock crises at thermal plants are more a problem of logistics and planning than of coal availability. Critically examine. (15 marks) 2. Discuss how El Niño-driven monsoon variability affects India's power-sector energy mix and suggest measures to build resilience. (10 marks) 3. Rapid growth in electricity demand tests India's energy transition. Analyse the role of coal as a balancing source alongside renewable expansion. (15 marks)

14. Related Topics to Study Next

• El Niño–Southern Oscillation (ENSO) and Indian Ocean Dipole: these drive monsoon and hydro variability.
• Central Electricity Authority: role and functions: the body that sets stock norms and publishes the data.
• Coal sector reforms (commercial mining, captive blocks): the supply-side response to demand.
• Railway coal logistics (rakes, silo loading, freight corridors): the main bottleneck between mine and plant.
• Pumped storage and battery energy storage: alternatives for firming supply when hydro or renewable output dips.
• Plant Load Factor and the thermal capacity addition plan: the basis for stocking norms and future capacity.
• India's NDCs / net-zero 2070: the tension between rising coal dependence and climate targets.
• DISCOM finances and load-shedding: where state-level power shortages hit consumers.

15. NCERT Concepts to Revise

• Plant load factor (Economy): Coal stocking norms are calculated at 85% PLF, so this explains how 'days of stock' are worked out.
• Thermal power (Geography): The crisis is about thermal plants, including pithead versus non-pithead plants, whose stock norms differ.
• Energy security (Economy): Adequate plant coal stock works as a national buffer when hydro or renewable output falls.
• ENSO (Geography): El Niño weakens the monsoon, cutting hydropower and pushing more load onto coal plants.
• Indian Railways (Geography): Rail rakes and silo loading are the bottleneck between mine and plant, and drove the 2025 record stocks.
• Energy transition (Economy): Rising reliance on coal as a balancing source tests India's shift to renewables and net zero.

16. Common Errors / Trap Areas

• CEA versus Ministry of Coal: The CEA works under the power sector and sets norms and monitors plant stocks. The Coal Ministry and CIL handle production and dispatch.
• "Critical" thresholds are not fixed across reports: The 2022 PIB figures used below 10% of normative stock, while the 2026 article uses below 25% or under 3 days. Do not compare them directly [1][2].
• Pithead versus non-pithead norms are easy to swap: pithead is 12–17 days and non-pithead is 20–26 days. Plants farther from mines need more stock [2].
• "No coal shortage" and "critical plant stocks" can both be true: national production can be enough while plant-level inventories run low because of logistics or a demand spike [1].
• El Niño means warming of the central and eastern Pacific, and it generally weakens the Indian monsoon. Do not confuse it with La Niña, which is the cooling phase [1].