: India’s coal stocks have fallen 66% in six months. With many power plants holding four days of fuel or less, the real test is whether supplies can recover before summer.
India usually expects electricity demand to ease in October, when the monsoon retreats and temperatures begin to fall. This year, the relief has been slower to arrive. Warm weather and erratic rainfall have kept air conditioners, irrigation pumps and factories running.
According to a Bloomberg report, nearly 70% of India's electricity comes from coal. Yet two-fifths of the country's coal-fired power plants have enough fuel for four days or less. Coal stocks at power plants are at their lowest level for this time of year since the December 2021 energy crisis.
The concern is not that India has run out of coal. It is that many power plants have too little fuel in reserve to withstand a sudden rise in demand or a disruption in supply.
How India Reached This Point
Coal stocks at Indian power plants fell from 54.9 million tonnes in early April to 18.6 million tonnes by the end of September, a decline of about 66% in six months.
The fall reflects a combination of rising electricity demand, uneven domestic coal production and lower imports.
Demand has been a major factor. According to Kpler's analysis, coal-fired power generation was about 14% higher year on year in August. Power plants have been operating at high utilisation rates and consuming coal faster than stocks can be replenished. A weak hydroelectric generation season has added to the pressure.
Domestic supply has also faced difficulties. Coal output was expected to fall by more than 8% year on year in August. Coal India subsequently reported a recovery, with production rising 9.18% in September and supplies to the power sector increasing 10.63%.
However, higher production does not automatically translate into larger stockpiles. If power plants consume coal faster than fresh supplies arrive, reserves continue to shrink.
Imports have offered limited relief. Coal imports by power plants fell 22% in the first quarter of the current financial year. Imported coal is expensive after transportation costs are included, making power producers reluctant to maintain large reserves.
A report by S&P Global cited industry concerns that some plants are now keeping just enough coal to meet peak demand instead of maintaining comfortable buffers for regular generation.
The Real Bottleneck Is Moving Coal
One of the most important points in the Bloomberg report concerns the distance between power plants and coal mines.
About 90% of plants with low inventories are located far from coal mines. For these facilities, the problem is not simply how much coal India produces. It is how quickly that coal can reach them.
Coal must travel across the country, largely by rail, before it can be burned to generate electricity. Limited rail capacity and delivery bottlenecks can slow the movement of supplies, even when coal is available at the mines.
This explains why national coal production figures do not tell the whole story. A mine may have sufficient reserves, but that does little to help a power plant hundreds or even thousands of kilometres away if the required railway wagons do not arrive on time.
Plants close to coal mines can manage with smaller reserves because replenishment is relatively quick. Distant plants face greater risks when deliveries are delayed.
India's challenge, therefore, is not just to produce more coal. It must also ensure that supplies reach the power stations that need them most.
Why October Matters
October and November offer an important opportunity to rebuild coal stocks. Electricity demand usually moderates during these months, giving power plants a chance to replenish their reserves before the next summer.
If demand remains high, however, stocks may fail to recover. That would leave the power sector entering the hotter months with limited protection against another surge in consumption.
The Bloomberg report warns that the current pressure could have consequences well into next summer, when electricity demand typically rises sharply and adequate fuel reserves become particularly important.
The government has begun responding. It has directed 112 captive coal-based power plants to operate at maximum capacity from October 1 to December 31. Authorities are also discussing the blending of imported coal with domestic supplies.
Kpler expects October to be an important month for renewed import purchases as power producers seek to rebuild their buffers.
These measures could help stabilise supplies, but they come at a cost. Imported coal increases fuel expenses, while higher generation costs can put additional pressure on electricity distribution companies and, eventually, consumers or state government budgets.
Is India Facing Another 2021 Crisis?
The comparison with 2021 is difficult to avoid. That year, a sharp recovery in electricity demand after the pandemic coincided with exceptionally high international coal prices and heavy rainfall that disrupted mining operations.
The current situation has different features. The pressure has built up through sustained demand, limited stockpiles and supply constraints rather than one dramatic shock.
That difference may give policymakers more time to respond. But a gradual squeeze can also be dangerous because it may not attract enough attention until the situation becomes urgent.
With many plants operating on limited reserves, another disruption could quickly worsen the problem. A railway breakdown, labour strike or heavy rainfall at coal mines could delay deliveries and increase the risk of localised power shortages.
Low stocks do not automatically mean blackouts are imminent. They do, however, leave the system with less room to absorb unexpected problems.
Four Indicators to Watch
The next few weeks will reveal whether India's coal position is improving or deteriorating. Four indicators deserve particular attention.
- Daily coal stocks: Central Electricity Authority data on plant inventories, especially the number of stations classified as having critically low stocks, will show whether reserves are recovering.
- Railway supplies: The availability of coal rakes and the speed of deliveries will determine how quickly fuel reaches power plants located far from mines.
- Coal imports: A rise in imports could indicate that power producers are willing to pay more to rebuild their reserves before demand increases again.
- Weather conditions: Cooler temperatures in November would reduce pressure on electricity demand and give plants more time to replenish their stocks.
Together, these indicators will offer a clearer picture than coal production figures alone.
India's Energy Security Needs a Bigger Cushion
India's coal shortage warning highlights a larger weakness in the country's energy system. Energy security depends on more than the number of power plants installed or the amount of electricity they can generate. It also depends on reliable fuel supplies, efficient transportation and adequate reserves.
India has expanded its solar and wind capacity rapidly. Yet renewable energy cannot always meet demand when the sun sets, wind generation falls or electricity consumption rises sharply. Coal remains central to maintaining a reliable supply, particularly during periods of high demand.
Until energy storage, transmission networks and supply chains become more capable, coal-fired power plants will continue to carry much of the burden of keeping the lights on.
That makes fuel reserves especially important. A power station may have the capacity to generate electricity, but that capacity is of little use if it runs short of coal.
The immediate situation remains manageable if demand eases and deliveries improve. But the warning should not be ignored. A power system operating with only a few days of fuel in reserve has little room for error.
India's challenge now is to rebuild that cushion before the next summer puts its electricity network under renewed pressure.
India usually expects electricity demand to ease in October, when the monsoon retreats and temperatures begin to fall. This year, the relief has been slower to arrive. Warm weather and erratic rainfall have kept air conditioners, irrigation pumps and factories running.
According to a Bloomberg report, nearly 70% of India's electricity comes from coal. Yet two-fifths of the country's coal-fired power plants have enough fuel for four days or less. Coal stocks at power plants are at their lowest level for this time of year since the December 2021 energy crisis.
The concern is not that India has run out of coal. It is that many power plants have too little fuel in reserve to withstand a sudden rise in demand or a disruption in supply.
How India Reached This Point
Coal stocks at Indian power plants fell from 54.9 million tonnes in early April to 18.6 million tonnes by the end of September, a decline of about 66% in six months.
The fall reflects a combination of rising electricity demand, uneven domestic coal production and lower imports.
Demand has been a major factor. According to Kpler's analysis, coal-fired power generation was about 14% higher year on year in August. Power plants have been operating at high utilisation rates and consuming coal faster than stocks can be replenished. A weak hydroelectric generation season has added to the pressure.
Domestic supply has also faced difficulties. Coal output was expected to fall by more than 8% year on year in August. Coal India subsequently reported a recovery, with production rising 9.18% in September and supplies to the power sector increasing 10.63%.
However, higher production does not automatically translate into larger stockpiles. If power plants consume coal faster than fresh supplies arrive, reserves continue to shrink.
Imports have offered limited relief. Coal imports by power plants fell 22% in the first quarter of the current financial year. Imported coal is expensive after transportation costs are included, making power producers reluctant to maintain large reserves.
A report by S&P Global cited industry concerns that some plants are now keeping just enough coal to meet peak demand instead of maintaining comfortable buffers for regular generation.
The Real Bottleneck Is Moving Coal
One of the most important points in the Bloomberg report concerns the distance between power plants and coal mines.
About 90% of plants with low inventories are located far from coal mines. For these facilities, the problem is not simply how much coal India produces. It is how quickly that coal can reach them.
Coal must travel across the country, largely by rail, before it can be burned to generate electricity. Limited rail capacity and delivery bottlenecks can slow the movement of supplies, even when coal is available at the mines.
This explains why national coal production figures do not tell the whole story. A mine may have sufficient reserves, but that does little to help a power plant hundreds or even thousands of kilometres away if the required railway wagons do not arrive on time.
Plants close to coal mines can manage with smaller reserves because replenishment is relatively quick. Distant plants face greater risks when deliveries are delayed.
India's challenge, therefore, is not just to produce more coal. It must also ensure that supplies reach the power stations that need them most.
Why October Matters
October and November offer an important opportunity to rebuild coal stocks. Electricity demand usually moderates during these months, giving power plants a chance to replenish their reserves before the next summer.
If demand remains high, however, stocks may fail to recover. That would leave the power sector entering the hotter months with limited protection against another surge in consumption.
The Bloomberg report warns that the current pressure could have consequences well into next summer, when electricity demand typically rises sharply and adequate fuel reserves become particularly important.
The government has begun responding. It has directed 112 captive coal-based power plants to operate at maximum capacity from October 1 to December 31. Authorities are also discussing the blending of imported coal with domestic supplies.
Kpler expects October to be an important month for renewed import purchases as power producers seek to rebuild their buffers.
These measures could help stabilise supplies, but they come at a cost. Imported coal increases fuel expenses, while higher generation costs can put additional pressure on electricity distribution companies and, eventually, consumers or state government budgets.
Is India Facing Another 2021 Crisis?
The comparison with 2021 is difficult to avoid. That year, a sharp recovery in electricity demand after the pandemic coincided with exceptionally high international coal prices and heavy rainfall that disrupted mining operations.
The current situation has different features. The pressure has built up through sustained demand, limited stockpiles and supply constraints rather than one dramatic shock.
That difference may give policymakers more time to respond. But a gradual squeeze can also be dangerous because it may not attract enough attention until the situation becomes urgent.
With many plants operating on limited reserves, another disruption could quickly worsen the problem. A railway breakdown, labour strike or heavy rainfall at coal mines could delay deliveries and increase the risk of localised power shortages.
Low stocks do not automatically mean blackouts are imminent. They do, however, leave the system with less room to absorb unexpected problems.
Four Indicators to Watch
The next few weeks will reveal whether India's coal position is improving or deteriorating. Four indicators deserve particular attention.
- Daily coal stocks: Central Electricity Authority data on plant inventories, especially the number of stations classified as having critically low stocks, will show whether reserves are recovering.
- Railway supplies: The availability of coal rakes and the speed of deliveries will determine how quickly fuel reaches power plants located far from mines.
- Coal imports: A rise in imports could indicate that power producers are willing to pay more to rebuild their reserves before demand increases again.
- Weather conditions: Cooler temperatures in November would reduce pressure on electricity demand and give plants more time to replenish their stocks.
Together, these indicators will offer a clearer picture than coal production figures alone.
India's Energy Security Needs a Bigger Cushion
India's coal shortage warning highlights a larger weakness in the country's energy system. Energy security depends on more than the number of power plants installed or the amount of electricity they can generate. It also depends on reliable fuel supplies, efficient transportation and adequate reserves.
India has expanded its solar and wind capacity rapidly. Yet renewable energy cannot always meet demand when the sun sets, wind generation falls or electricity consumption rises sharply. Coal remains central to maintaining a reliable supply, particularly during periods of high demand.
Until energy storage, transmission networks and supply chains become more capable, coal-fired power plants will continue to carry much of the burden of keeping the lights on.
That makes fuel reserves especially important. A power station may have the capacity to generate electricity, but that capacity is of little use if it runs short of coal.
The immediate situation remains manageable if demand eases and deliveries improve. But the warning should not be ignored. A power system operating with only a few days of fuel in reserve has little room for error.
India's challenge now is to rebuild that cushion before the next summer puts its electricity network under renewed pressure.
Leave a Comment