Coal India's 168 MT buffer enough to meet peak power demand, CIL says
Synopsis
Coal India says its 168 MT total coal buffer — 10% higher at mine heads than a year ago — is enough to cover 19 days of thermal power plant needs at peak summer demand. With 21 plants still under criticality and global energy supply disrupted by the Iran war, CIL's contingency stockpile of 50 MT in-situ coal is the key backstop.
Key Takeaways
Coal India Limited (CIL) confirmed a total coal buffer of 168 MT as of 26 May 2025 , covering thermal plant stocks, mine heads, transit points, and railway transit.
Mine-head inventory stood at 113.5 MT as of 24 May — 10% higher than the same period last year.
Current stocks are sufficient to meet approximately 19 days of thermal power plant fuel requirements.
As of 20 May , 21 thermal power plants were under criticality, including 11 domestic coal-based units, of which 7 are supplied by CIL.
An additional 50 MT of in-situ mine coal is available for rapid extraction if demand spikes further.
Pithead stocks are being built up proactively amid global energy supply disruptions linked to the Iran war .
Coal India Limited (CIL), the government-owned mining giant that supplies over 80% of India's coal demand, on Tuesday, 26 May assured that its current stock buffer of 168 million tonnes (MT) is sufficient to meet peak summer demand from the country's thermal power plants. The total buffer spans inventories at power plants, CIL mine heads, transit points, and coal currently moving through the railway network.
Current Stock Position
Coal stocks at thermal power plants running on domestic coal stood at 47.6 MT as of 23 May, while inventories at CIL's mine heads reached 113.5 MT as of 24 May — a figure 10% higher than the same period last year. The combined stock level is adequate to cover approximately 19 days of fuel requirements for power plants, according to the company.
An additional 3 MT is held at transit points including goods sheds, ports, and private washeries, while nearly 4 MT is currently in transit via railway rakes.
Critically Low Plants and CIL's Response
As of 20 May, 21 thermal power plants were classified under criticality, of which 11 were domestic coal-based units. Of these, 7 plants source coal directly from CIL. The company said it has been actively communicating with power producers to build up inventories in advance, particularly for plants in logistically challenging locations.
CIL noted that a decline in coal stocks at power plants during peak summer months is a recurring seasonal pattern and should not be read as a supply-side crisis.
Reserve Capacity and Contingency Planning
Beyond the existing buffer, CIL said approximately 50 MT of in-situ mine coal is readily available for rapid extraction and dispatch should demand rise further. A senior official noted that pithead stocks are also being built up proactively amid disruptions in global oil and gas supplies linked to the ongoing Iran war.
Ministry of Coal's Oversight
The Ministry of Coal said it is maintaining a performance-driven ecosystem through sustained policy facilitation, robust monitoring mechanisms, and proactive stakeholder engagement. According to the official, these efforts are aimed at ensuring reliable coal availability and uninterrupted operations across critical energy sectors as India's power demand continues to grow.
With summer demand typically peaking through June, CIL's stock disclosures suggest the country's coal supply chain is better positioned than in previous years — though the criticality status of 21 plants remains a metric to watch in the weeks ahead.
Point of View
But the detail that 21 thermal plants remain under criticality — including 7 directly supplied by CIL — tells a more complicated story. The 10% year-on-year improvement in mine-head stocks is a genuine positive, yet the seasonal drawdown at plant level is accelerating exactly as summer peaks. The reference to the Iran war as a supply-disruption trigger is notable: it signals that the Ministry of Coal is quietly factoring in a geopolitical risk premium into its contingency planning, even as public messaging stays calm. The 50 MT in-situ reserve is the real buffer to watch — whether it can be extracted and dispatched at speed will determine whether 'adequate' holds through June.
NationPress
11 Jul 2026
Frequently Asked Questions
What is Coal India's total coal stock buffer as of May 2025?
Coal India Limited's total coal buffer stands at approximately 168 MT as of 26 May 2025, encompassing stocks at thermal power plants, CIL mine heads, transit points, and coal in transit via railway rakes. This is enough to cover around 19 days of thermal power plant fuel requirements.
How does CIL's current mine-head stock compare to last year?
CIL's mine-head inventory of 113.5 MT as of 24 May 2025 is 10% higher than at the same point last year, indicating improved advance stocking ahead of peak summer demand.
How many thermal power plants are under criticality right now?
As of 20 May 2025, 21 thermal power plants were classified under criticality. Of these, 11 are domestic coal-based units, and 7 source coal directly from Coal India Limited.
Why do coal stocks at power plants fall during summer?
CIL says the decline in coal stocks at power plants during peak summer months is a natural seasonal occurrence driven by higher electricity demand and is not indicative of a supply-side crisis. The company maintains buffer stocks at mine heads and transit points to compensate.
What contingency does CIL have if demand rises further?
CIL has approximately 50 MT of in-situ mine coal ready for quick extraction and dispatch as a contingency reserve. Pithead stocks are also being built up proactively to guard against any further disruption, including those linked to global energy supply pressures from the Iran war.
