Saturday, August 8, 2015

Coal-based power plants

On 15 May 2015, the Government of India came out with a draft notification on emission standards for coal based thermal power plants, opening it up for public comments. Till the time, there had been no specific emission standards for thermal power plants, except in respect of Particulate Matters which was also very high when compared to global standards.
There has been a series of publications in recent years by civil society groups like Greenpeace, Urban Emissions, Centre for Science and Environment on thermal power plants which have made headlines in India.  Some of the country’s premier engineering institutes have also came out with an extensive review on atmospheric pollution from coal based thermal power plants in India, such as this from the  Indian Institute of Technology, New Delhi in May 2014.

Raichur Coal based Thermal Power Plant. Pic: Tanzeel Ahad
 
A simple Google search on the health impact of thermal power plants in India will yield millions of results. A recent scientific publication in a highly rated open source journal PNAS showed how the per- hectare yield of rice and wheat have decreased over the last decade owing to the increasing concentration of aerosols produced as secondary pollution from thermal power plants.  The problem was grave and pressure from civil society as well as attention from research institutes made it imperative for the Government of India to come out with the first ever draft notification on specific emission standards for coal-based thermal power plant.
The Centre for Science and Environment which recently published the green ratings of thermal power plants in India has welcomed the move of the Government and expressed satisfaction with the new norms proposed. “We believe these lower standards are acceptable given technical and economic limitations in installing pollution control equipment in older units” said Priyavrat Bhati, CSE’s Director for Green Ratings Project through the official press release.
The Narendra Modi-led government has been much criticised for diluting the environmental law of the country in order to accelerate industrialisation and the compliments for the draft standards make one curious to explore if it is indeed going to be effective in reducing emissions and providing cleaner air................................................................................