Emissions

Allen Fossil Plant

What TVA is doing about emissions at Allen

TVA has taken a number of steps to make the efficient generation of power at Allen as clean as possible:

• The plant is equipped with electrostatic precipitators that capture ash from the burning coal.
• The use of low-sulfur coal from the West limits emissions of sulfur dioxide (SO₂).
• A technology called overfire air limits the production of nitrogen oxides (NO_x), which contribute to the formation of ozone and acid rain. This technology involves modifications that reduce the oxygen available to form NO_x in the furnaces’ combustion zones.
• All three units at Allen operate selective catalytic reduction systems during the ozone season (May - September), reducing nitrogen oxide emissions by more than 90 percent.

Carbon dioxide

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View more information on carbon dioxide and what TVA is doing about it.

Nitrogen oxides

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View more information on nitrogen oxides and what TVA is doing about them.

Sulfur dioxide

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View more information on sulfur dioxide and what TVA is doing about it.

Toxics Release Inventory

2005 data

All amounts are in pounds

Chemical	Air	Water	Land	Offsite Disposal	Total
Antimony Compounds
Arsenic Compounds	69	1,001	0	66,369	67,438
Barium Compounds	2,552	9,241	219,930	3,208,255	3,439,977
Beryllium Compounds
Cadmium Compounds
Chromium Compounds	198	146	4,661	69,201	74,206
Cobalt Compounds
Copper Compounds	197	2,553	5,839	161,555	170,144
Lead Compounds	143	0	1,110	120,214	121,467
Manganese Compounds	405	0	14,247	127,459	142,112
Mercury Compounds	184	10	0	301	495
Nickel Compounds	202	0	4,111	54,901	59,213
Selenium Compounds
Silver Compounds
Thallium Compounds	12	0	3,189	36,870	40,071
Vanadium Compounds	194	2,252	11,000	173,505	186,951
Zinc Compounds	807	1,058	8,056	837,109	847,030
Hydrochloric Acid (aerosol)	2,583,053	0	0	0	2,583,053
Hydrogen Fluoride	190,556	0	0	0	190,556
Sulfuric Acid (aerosol)	496,970	0	0	0	496,970
Benzo(g,h,i)perylene	0.11	0.00	0.12	0	0.24
Dioxin (lbs)	0.003	0.000	0.000	0.000	0.003
Polycyclic Aromatic Compounds	17	0	5	6	27
Napthalene	35	0	0	0	35
Ammonia	40,077	109	0	0	40,186
Nitrate Compounds
Totals	3,315,670	16,369	272,147	4,855,745	8,459,931

 

Gross MWh generated:	5,654,175
Pounds released per MWh:	1.50

 

View Toxics Release Inventory data from previous years.

 

 

Emissions Data

For data on emissions at each of TVA’s fossil plants, choose from the menu below. Fossil Plants Allen Bull Run Colbert Cumberland Gallatin John Sevier Johnsonville Kemper Kingston Lagoon Creek Paradise Shawnee Widows Creek Other TVA Sites

 

General Information

For general information on individual emissions choose from the menu below. Emissions Carbon Dioxide Nitrogen Oxides Ozone Particulates Sulfur Dioxide TRI