tva logoTennessee Valley Authority

Emissions

Shawnee Fossil Plant

What TVA is doing about emissions at Shawnee

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

  • Units 1 through 9 burn a blend of low-sulfur coal to limit sulfur dioxide emissions and use low-NOx burners to reduce emissions of nitrogen oxides.
  • Unit 10 — formerly used as a fluidized bed combustion boiler project — was idled in October 2010 and will be evaluated for possible conversion to generating power from biomass, such as wood waste.
  • As part of TVA's vision of being one of the nation’s leading providers of low-cost and cleaner energy by 2020, Shawnee units 1 and 4 will be converted to renewable biomass, controlled with scrubbers and selective catalytic reduction systems, or retired by Dec. 31, 2017.

Sulfur dioxide

See raw data for this chart

Year Coal
1974 248480
1975 280750
1976 283117
1977 278631
1978 173428
1979 134100
1980 113821
1981 66384
1982 56171
1983 56036
1984 47046
1985 57174
1986 47007
1987 56784
1988 47283
1989 45436
1990 47169
1991 42195
1992 44381
1993 67899
1994 54272
1995 67648
1996 45886
1997 38297
1998 34057
1999 35874
2000 34086
2001 31428
2002 35577
2003 35513
2004 33884
2005 36231
2006 35815
2007 36305
2008 36623
2009 27422
2010 28175
2011 27770
2012 27115

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

Nitrogen oxides

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Year Coal
1974 38053
1975 39278
1976 43564
1977 42200
1978 32337
1979 31202
1980 34729
1981 30535
1982 26105
1983 22590
1984 14321
1985 21780
1986 23378
1987 23088
1988 25171
1989 18702
1990 25793
1991 22481
1992 25381
1993 39454
1994 35904
1995 36809
1996 37277
1997 34770
1998 27762
1999 23956
2000 19674
2001 18708
2002 20061
2003 19923
2004 18599
2005 19379
2006 18216
2007 19044
2008 20006
2009 13607
2010 15788
2011 15677
2012 13065

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

Carbon dioxide

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Year Coal
1995 12586322
1996 10525859
1997 9519128
1998 9187925
1999 10030198
2000 10634933
2001 10574258
2002 10968115
2003 10912575
2004 10162565
2005 10444195
2006 10527302
2007 10608452
2008 10410548
2009 8312015
2010 8653841
2011 8751553
2012 7822681

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

Toxics Release Inventory

2012 data

All amounts are in pounds

Chemical Air Water Land Off-Site Disposal Total
Hydrochloric Acid (aerosol) 320,000 0 0 0 320,000
Hydrogen Fluoride 330,000 0 0 0 330,000
Sulfuric Acid (aerosol) 3,900 0 0 0 3,900
Ammonia          
Antimony Compounds          
Arsenic Compounds          
Barium Compounds 5,850 0 1,940,000 32 1,945,882
Beryllium Compounds          
Cadmium Compounds          
Chromium Compounds 272 0 29,700 1 29,973
Cobalt Compounds          
Copper Compounds 252 5,000 43,500 0 48,752
Lead Compounds 182 0 18,000 2 18,184
Manganese Compounds 534 26 81,000 0 81,560
Mercury Compounds 180 0 117 0 297
Nickel Compounds          
Selenium Compounds          
Silver Compounds          
Thallium Compounds          
Vanadium Compounds 253 740 57,300 0 58,293
Zinc Compounds 1,004 1,700 49,600 0 52,304
Benzo(g,h,i)perylene 0 0 0 0 0
Naphthalene 47 0 0 0 47
Nitrate Compounds          
Dioxin (grams) 2 0 0 0 2
Polycyclic Aromatic Compounds 24 0 9 0 33
Hydrazine          
Total 662,498 7,466 2,219,226 35 2,889,225

 

Gross MWh Generated: 8,548,790
Pounds Released per MWh: 0.389

 

Emissions by plant

Allen

Brownsville

Bull Run

Caledonia

Colbert

Cumberland

Gallatin

Gleason

John Sevier

Johnsonville

Kemper

Kingston

Lagoon Creek

Magnolia

Marshall

Paradise

Shawnee

Southaven

Widows Creek

 

Emissions by type

Carbon Dioxide

Nitrogen Oxides

Ozone

Sulfur Dioxide

Greenhouse Gases

Toxics Release Inventory (TRI)

           
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