The Tennessee Division of Air Pollution Control said in a brief May 14 notice that the Tennessee Valley Authority (TVA) is seeking an air permit for new air controls at the coal-fired Cumberland Fossil Plant.
“They seek to obtain an air contaminant permit (Division identification number: 81-0011-52/63669) for a Clean Coal Additive facility located at 815 Cumberland City Road, Cumberland City, TN 37050,” said the notice. “This operation will consist of two silos and handling operations for fuel additives (urea and magnesium hydroxide) intended to reduce hazardous emissions upon combustion of the fuel. This operation will be controlled by bin vent filters to control particulate emissions. There would be physical construction. Regulated air contaminants are emitted by this source.”
Said the TVA website about this 2,550-MW (net) power plant: “Electricity is produced at Cumberland’s two coal-fired units by the process of heating water in a boiler to produce steam. Under extremely high pressure, the steam flows into a turbine that spins a generator to make electricity. In a typical year, Cumberland generates about 16 billion kilowatt-hours of electricity, enough to supply 1.1 million homes. Through 2011, TVA has spent about $5.4 billion on emissions controls at its fossil-fuel plants to ensure that this power supply is generated as cleanly as possible. This includes installation of selective catalytic reduction systems that reduce nitrogen oxide emissions by about 90 percent and scrubbers that reduce sulfur dioxide emissions by about 95 percent at Cumberland.”