Mercury and Air Toxics Standards (MATS) is an emissions standard set by the Environmental Protection Agency (EPA). Emissions standards established under the EPA toxics program are federal air pollution limits that individual power plant facilities must meet by a set date. EPA set technology-based emissions standards for mercury and other hazardous air pollutants (HAP) emitted by units with more than a 25 megawatts capacity. These standards reflect levels achieved by the best-performing sources and apply to existing and new EGUs.

Source: https://www.epa.gov/mats/basic-information-about-mercury-and-air-toxics-standards

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Coal Plant Owners Seek to Shut 3.2 GW in PJM in Face of Economic, Regulatory and Market Pressures | Emissions News

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Ethan Howland reports in Utility Dive that power plant owners have started the process of potentially retiring 3,228 MW of coal-fired generation in the PJM Interconnection’s footprint this month, according to the grid operator’s generator deactivation list. Another 1,024 MW of coal shut down last year. Looking at the explanations for the planned retirements, our Julia Criscuolo, ESAI Power’s Manager of Renewables and Emissions, said about a third are driven by environmental regulations, a quarter by unfavorable economics and roughly 20% by “end of life” plant issues.

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