Coal power plants in India struggle to bridge emission norm gap
In a recent analysis by the Center for Science and Environment (CSE), it was revealed that India’s coal-fired power plants are struggling to meet emission standards, particularly in controlling Sulfur dioxide emissions (SO2). The CSE analysis, based on the updated status of Flue Gas Desulfurization (FGD) published by the Central Electricity Authority (CEA), highlights the lack of progress in the implementation of air pollution control measures in this sector. As per the CSE analysis, the 5 per cent of plants that have so far installed FGDs for controlling SO2 emissions include 9,280 MW that have been reported to have commissioned FGDs and another 1,430 MW that ‘claim to be SO2 compliant’. Says Anubha Aggarwal, programme officer, industrial pollution unit, CSE: “How far these claims are true is difficult to say, considering that there is no information available about on-ground inspections conducted by state-level regulatory bodies to confirm these claims.” The accuracy of these claims remains uncertain as no information is available regarding on-the-ground inspections conducted by state-level regulatory bodies to verify these claims. Installation of FGD systems for SO2 control generally takes about two years, followed by a temporary shutdown of the unit to facilitate necessary repairs. Based on the compliance stage and the remaining duration to meet deadlines, CSE researchers estimate the likelihood that coal-fired power plants will meet emission standards. Says Aggarwal: “Based on this methodology, we have found that despite five to eight years of extensions in deadlines, 43 per cent of the capacity (Category A, which includes plants within 10 km radius of Delhi-NCR or cities with million-plus population); 11 per cent of the capacity (Category B — within 10 km radius of critically polluted areas); and 1 per cent of the remaining capacity (Category C) are unlikely to meet the norms by the latest deadlines of 2024, 2025 and 2026, respectively.” Nivit Yadav, program manager at CSE’s Industrial Pollution Unit, acknowledges a slight improvement in compliance compared to December 2021, which can be attributed to deadline extensions and greater clarity regarding 34 GW capacity that the CEA had not previously reported. Key Highlights of the Report Newly commissioned capacity complying with norms: Only 0.81 GW out of the total 32.63 GW newly commissioned capacity is currently complying with the emission norms. Capacity likely to comply due to deadline extensions: Approximately 13 GW of capacity is now expected to comply with the norms as a result of the extended deadlines. Capacity exploring feasibility of FGD installation: Around 23 GW capacity is still in the process of assessing the feasibility of commissioning FGD systems. Capacity identified for decommissioning: Approximately 2.47 GW capacity has been marked for decommissioning, but the retirement plans for these plants are unclear.
