July and August 2026 brought unusually heavy rainfall across India's East-Central coal regions, creating a perfect storm for Coal India Limited. The prolonged downpours didn't just dampen spirits—they literally soaked the coal beds. Coal turned sticky and wet, making it nearly impossible to handle through Coal Handling Plants. Lower mine horizons flooded, submerging coal seams under water. Internal haul roads turned into mud baths, and geo-technical safety concerns around dump and bench stability forced work stoppages at ground zero. The impact was immediate and severe. Average daily coal production during the first three days of September plummeted to around 1.36 million tonnes, while Overburden Removal—the critical indicator of future production readiness—slumped to just 2.5 million cubic metres daily.
Here's where things get interesting.
August 2026 alone saw supplies reach 60.60 million tonnes, a 5.5% increase over August 2025. Power sector supplies rose 4.5% to 48.46 million tonnes in August. Yet, thermal power plants across the country were burning through their coal reserves at alarming rates.
Fifty plants with a combined capacity of 224 GW were classified as having "critically low" inventories, with enough coal for just nine days of consumption instead of the normal nineteen.
The answer to this puzzle lies in Coal India Limited's strategic inventory management.
This combined buffer of 122 million tonnes provided the operational leverage needed to maintain supply continuity even when mining operations were hampered by rain. The company strategically liquidated approximately 55 million tonnes of pithead stocks during April-August 2026 while still maintaining adequate buffer levels. This inventory decoupling meant that while daily production suffered, dispatch to power plants continued relatively uninterrupted. The ready-to-mine coal exposure was particularly crucial—it eliminated the typical 2-3 week lead time required for overburden removal, allowing immediate production scaling when conditions improved.
As the intense rains over coal command regions began easing in early September, the recovery was swift and dramatic. Coal beds that had turned sticky and wet started drying out, making freshly mined coal free-flowing again. Submerged coal seams were restored to production through augmented pumping operations. Internal haul roads were repaired. The results spoke for themselves. Average daily production jumped from 1.36 million tonnes during the rain-affected first three days of September to approximately 1.7 million tonnes on September 4, 2026—with just a single day's respite from rain. Overburden Removal surged from 2.5 million cubic metres to 4.1 million cubic metres on the same day. Average daily dispatch to the power sector improved from 1.35 million tonnes to 1.5 million tonnes by September 4.
The critical question remains: if Coal India Limited increased supplies, why did thermal plant stocks deplete so severely? The answer lies in demand dynamics and supply chain inefficiencies. India received 12% less rainfall than normal during the monsoon period, driving up electricity demand—particularly from air-conditioning. Cooling demand remained elevated during night-time hours when solar power generation was unavailable, increasing dependence on thermal generation. Peak power demand touched 270.2 GW in May 2026. But the bigger issue was distribution.
This represents a significant distribution bottleneck where increased supplies don't translate proportionally to plant-level stocks.
The situation reveals complex coordination challenges between multiple stakeholders. The Central Electricity Authority monitors 190 coal-fired power plants, classifying them based on inventory levels. Plants with inventories below 25% of normative requirements are flagged as critical. An Inter-Ministerial Committee comprising the Railway Board Chairman, Coal Secretary, and Power Secretary holds regular reviews to coordinate responses. Priority is accorded to coal rakes and dispatch to power houses. However, this system has unintended consequences.
Plants that manage their inventories well effectively get penalized when their coal is diverted to others. The Supreme Court's September 2025 judgment in Haryana Power Purchase Centre & Others v. GMR Kamalanga Energy Ltd. further complicated matters by ruling that additional costs from using costlier coal must be shared equitably among procurers.
Coal India Limited has offered power plants with Fuel Supply Agreements the option to lift additional coal quantities beyond their Annual Contracted Quantities, including through road transport. The company removed the 120% ACQ cap in 2024, and the government decided in 2022 to make coal available irrespective of ACQ levels to meet full PPA requirements. But these measures address symptoms rather than root causes. The fundamental challenge remains improving supply chain efficiency and ensuring better coordination between production planning, logistics, and plant-level requirements. As the monsoon recedes and production ramps up, the immediate crisis may ease. But the structural issues exposed by this season's disruptions will require sustained attention from policymakers, regulators, and industry participants alike. The power sector's fuel security depends on it.
