Coal at the Pithead, Shortage at the Power Plant: Who Failed the Supply Chain?

India’s electricity system may operate as one synchronised national grid, but the coal position across its five regional grids tells a very different story. Thermal power plants in several parts of the country are running with sharply depleted inventories even as coal remains available in substantial quantities at the mine end.

The latest Central Electricity Authority (CEA) data shows that coal inventories at 190 thermal power plants fell to 22.9 million tonnes as of September 19, equivalent to only about seven days of generation and just 39% of normative stock. As many as 74 plants were in the critical category, up from 51 in August.

The situation is particularly significant when viewed through India’s five regional grids — Northern, Western, Southern, Eastern and North-Eastern.

Northern Grid Under Pressure

The Northern Grid, covering major power-consuming states such as Uttar Pradesh, Rajasthan, Punjab, Haryana, Uttarakhand and Himachal Pradesh, has some of the most visible signs of coal stress.

Uttar Pradesh’s thermal fleet has been among the areas facing depleted inventories, while Rajasthan has also witnessed a substantial number of plants falling into the critical category.

The significance is obvious: the Northern region is a major electricity-demand centre but is located away from several of India’s principal coal-producing belts.

Western Grid Faces a Similar Challenge

The Western Grid, comprising Maharashtra, Gujarat, Madhya Pradesh, Chhattisgarh and Goa, presents a mixed picture.

Maharashtra and Madhya Pradesh have faced significant pressure on plant-level coal inventories. At the same time, Chhattisgarh — one of India’s major coal-producing states — is much closer to the source of supply.

This contrast highlights a fundamental feature of India’s coal-power system: being close to coal production does not automatically eliminate plant-level shortages, while being far from coalfields makes dependable transportation even more critical.

Southern Grid Relies on Continuous Supply

The Southern Grid, covering Andhra Pradesh, Telangana, Karnataka, Tamil Nadu and Kerala, also has plants operating with tight inventories.

Several southern states depend heavily on coal transported over long distances, making the reliability of the rail and coastal logistics chain crucial.

With electricity demand remaining elevated, any disruption in coal movement can quickly translate into pressure on individual generating stations.

Eastern Grid Has the Coal Advantage

The Eastern Grid — Odisha, Jharkhand, West Bengal and Bihar — sits closest to some of India’s largest coal reserves.

Odisha, in particular, has a major advantage because of its concentration of coal production and pithead power generation.

But even the Eastern region is not immune from shortages at individual plants. Coal availability at the mine does not necessarily mean that every power station has adequate inventory.

That distinction is becoming increasingly important.

The Real Problem: Coal at the Mine, But Not at the Plant

Coal India’s pithead inventory was around 76 million tonnes in early September, indicating that the country does not simply have an absence of coal at the production end.

The pressure is instead being felt further down the supply chain.

CEA data and industry analysis point towards rail availability, monsoon-related disruptions, higher coal consumption and the time required to replenish plant inventories as important factors. Rail-fed plants have been particularly vulnerable.

The Ministry of Coal has already increased rake loading for the power sector, with loading rising from 370 rakes to 444 rakes within a week in early September.

Five Regional Grids, One National Challenge

India’s five regional grids have been synchronously integrated into one national electricity grid, allowing power to move across regional boundaries. But electricity can only compensate for a fuel shortage at a particular thermal plant to a limited extent.

A power station without sufficient coal cannot be made to generate simply because another region has surplus electricity.

That is why the current coal-stock position is more than a mine-production story. It is increasingly a mine-to-power-plant logistics story.

With 22.9 MT of coal against a much larger normative requirement and 74 plants already classified as critical, the immediate challenge is to rebuild inventories before the post-monsoon demand cycle places further pressure on the system.

For India’s coal producers and logistics agencies, the message is straightforward: coal has to move from the pithead to the power plant — and it has to move before the plant runs short.