Nearly 50% of domestic coal-based power plants in India are reporting critical fuel shortages, holding less than 25% of required safety stocks. The situation is driven by a 23.4% year-on-year surge in early October electricity demand combined with production bottlenecks. Current stockpiles cover only six days of operations, well below the standard 19-20 day buffer, creating operational risks for power generators.
India's power generation sector is currently managing a significant supply challenge as nearly half of its domestic coal-based power plants report critically low fuel inventories. As of late October 2026, 85 out of 176 thermal power stations are operating with coal stocks below 25% of their required normative levels. This scarcity affects a substantial capacity of 207 gigawatts, highlighting the current strain on the country's energy infrastructure.
The shortage is driven by a persistent mismatch between supply and consumption. Despite the post-monsoon period typically seeing lower electricity use, demand has remained resilient. Data from the Grid Controller of India shows a 23.4% year-on-year surge in electricity demand during the first ten days of October alone. This follows a period of robust growth in the first half of the fiscal year, where demand rose by 10.2%, driven by sustained industrial activity and cooling needs.
On the supply side, domestic coal production has faced headwinds. Reports indicate a 3.2% contraction in domestic coal output during the first five months of the fiscal year, largely linked to volatility in production at Coal India. While supply to the power sector grew by 4% in the same period, it has not been sufficient to keep pace with the rapid consumption growth.
For investors, the key metric is the stockpile duration. Current inventory levels at these plants cover only about six days of operational requirements, significantly below the comfortable 19 to 20-day buffer that utilities typically aim to maintain. This tight inventory forces power plants to rely heavily on daily coal arrivals, leaving them highly exposed to any logistical delays, weather-related disruptions, or further output volatility.
The situation creates several implications for the power sector. Generators with lower fuel security may face operational stress or the need to source coal through more expensive channels, which could pressure profit margins if they cannot pass on costs due to regulatory caps on power tariffs. Investors will likely monitor the replenishment of these stockpiles in the coming weeks and monthly production data from coal miners to gauge the stability of the power grid and the associated financial impact on utility companies.