Due to the long lead time for environmental control projects, many coal-fired generators have moved ahead with compliance plans despite uncertainty around an eventual ruling from the U.S. Supreme Court on the legality of the U.S. EPA's Mercury and Air Toxics Standards.
Data compiled by SNL Energy show that 200 power plants, comprising about 20% of U.S. generating capacity, were given up to an extra year to comply with MATS, mostly in order to finish installing mercury controls.
The infographic provides a detailed breakdown of environmental control projects occurring at power plant units that have received up to an extra year to comply with the EPA's mercury rule. Currently, units with a combined capacity of 26,082 MW are undergoing installation of flue gas desulfurization, flue gas particulate or NOx controls expected to come online before 2019.
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