Emissions Control Upgrade Finished at Oklahoma Coal-Fired Power Plant

 Emissions Control Upgrade Finished at Oklahoma Coal-Fired Power Plant

Public Service Company of Oklahoma (PSO), a subsidiary of American Electric Power (NYSE: AEP), completed an environmental upgrade project at its Northeastern Station in Oklahoma.
The addition of environmental controls for the coal-fired Unit 3 include activated carbon injection to capture mercury in the flue gas, dry sorbent injection to reduce acidic gases and sulfur dioxide and a fabric filter or a baghouse to trap and filter out particulate matter.
PSO in 2012 entered in an agreement in principle with the state of Oklahoma, the U.S. Environmental Protection Agency (EPA) and the Sierra Club for its Environmental Compliance Plan (ECP) focused on its two coal-fired units. Adding the emissions controls would allow Unit 3 to operate another 10 years before it is retired in 2026. Site work for construction began in 2014, and a bulk of the work took place throughout 2015.
Unit 4 is set to shut down in April 2016, and the lost capacity will be replaced by purchased power from the gas-fired Calpine facility near Tulsa and additional supplies of wind energy from new contracts that went into effect at the beginning of 2016.  

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