Recalibration of Flue Gas Desulphurisation (FGD) Mandate
The Ministry of Environment, Forest and Climate Change (MoEF&CC) has amended its 2015 mandate for FGD systems in coal-fired power plants. This shift towards region-specific, evidence-based regulation balances environmental priorities with India's energy necessities.
Historical Context
The 2015 notification mandated FGDs in Thermal Power Plants (TPPs) by 2017, tightening SO₂ emission limits from 600 to 100 mg/cubic meter.
Scientific Findings and Economic Considerations
- Survey data shows SO₂ levels within national standards; acid rain is not a major concern in India.
- Indian coal is characterized as "very low sulphur coal" compared to US and Chinese coal.
Benefits of the July 2025 Amendment
- Recognizes that SO₂ pollution from TPPs is less severe than anticipated.
- Introduces a tiered compliance approach, replacing a uniform mandate.
- Mitigates electricity tariff increases for consumers.
- Frees capital for more sustainable, high-impact energy investments.
Conclusion
The recalibration signals India's commitment to a science-driven, pragmatic approach to environmental regulation, prioritizing national interests over adopting Western mandates indiscriminately.
