The U.S. Environmental Protection Agency is requiring three Oklahoma coal-fired power plants to either install emission control technology or switch to natural gas under the Clean Air Act.
The plants in question are OG&E's 477 MW Unit 4 and 517 MW Unit 5 at the Muskogee power plant and the 1,046 MW Sooner plant in north central Oklahoma. American Electric Power/Public Service Co. must upgrade its 460 MW units 3 and 4 at the Northeastern plant outside of Tulsa. The plants will need to reduce levels of sulfur dioxide emissions by about 95 percent in three years either by switching to natural gas, adding scrubbers or a combination of both.
The plants will have three years to add scrubbers, switch to natural gas, or use a combination of these approaches.
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