The Indian government is evaluating a mandate for thermal power plants to blend imported coal with domestic supplies as 80 plants report critical inventory levels. Current thermal coal stocks are at just 38% of recommended levels, down from safety buffers. This move, triggered by a 14% surge in power demand this September, could increase operating costs for power generators if global import prices remain high.
The Indian government is weighing a potential mandate requiring thermal power plants to increase the use of imported coal, a move aimed at addressing a significant supply gap in the domestic energy sector. Current data from the Central Electricity Authority indicates that thermal power plant stocks have fallen to 22.3 million tonnes, which is only 38% of the 57.8 million tonnes recommended for a safe 19-day buffer. This shortfall affects approximately 80 thermal power plants across the country, creating pressure on national power grid stability.
The inventory crunch follows a sharp 14% rise in power demand during September. This spike in consumption, combined with heavy rainfall in mining regions, has disrupted the movement of coal from domestic mines to power generation sites. While the Ministry of Coal has noted that the overall systemic stock—including coal at mines and transit hubs—remains at 114 million tonnes, the localized shortages at specific plant sites have forced regulators to consider immediate logistics adjustments.
Historically, the government has used mandatory blending policies to ensure that plants do not run out of fuel during high-demand months. However, this strategy carries financial implications for power producers. Private power companies and state-owned generators often rely on Coal India Ltd for domestic fuel, which is priced significantly lower than international coal. If a mandate to blend imported coal is enforced, generators may have to purchase more expensive fuel from international markets, primarily from Indonesia, which currently supplies about 80% of India’s imported thermal coal.
For power producers, the impact of this policy hinges on their ability to pass on these higher fuel costs to consumers. While some power purchase agreements include fuel price pass-through mechanisms, others may face margin pressure if they are unable to recover the added expenses of imported coal. With global prices for Indonesian, South African, and Australian coal trending higher than the previous year, the cost of generating electricity could increase for companies that are already operating on thin margins.
The August data shows that the industry is already increasing its reliance on external sources, with power sector imports reaching 5.5 million tonnes, an 85.6% increase compared to the same period last year. Investors and stakeholders will likely monitor the final government decision on the blending mandate, as well as the monthly coal import volumes reported by the Ministry of Coal. The key monitorable for the power sector remains the ability of these companies to manage fuel costs against potential regulatory requirements for higher import blending.