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Emissions

Colbert Fossil Plant

What TVA is doing about emissions at Colbert

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

  • Colbert burns low-sulfur coal to limit emissions of sulfur dioxide.
  • Low-NOx burners limit emissions of nitrogen oxides.
  • Colbert Unit 5 operates a selective catalytic reduction system to further reduce nitrogen oxide emissions by about 90 percent.
  • In support of recent environmental agreements and its vision of being one of the nation’s leading providers of low-cost and cleaner energy by 2020, TVA will control, idle or retire Colbert unit 5 by Dec. 31, 2015. Units 1 through 4 will be controlled, idled or retired by June 30, 2016. Any Colbert units that are idled will be controlled or retired within three years.
  • Colbert combustion turbines burn low emitting natural gas or ultra-low sulfur fuel oil.

Sulfur dioxide

See raw data for this chart

Year Coal Combustion Turbines
1974 202192
1975 181048
1976 188832
1977 229074
1978 164437
1979 117248
1980 124846
1981 130734
1982 102504
1983 113368
1984 124344
1985 137546
1986 139555
1987 151407
1988 136808
1989 132398
1990 76370
1991 70817
1992 68599
1993 84667
1994 72654
1995 76907
1996 90157
1997 78023
1998 74262
1999 69573
2000 70191 37
2001 63002 81
2002 49960 5
2003 57481 30
2004 33439 3
2005 38939 4
2006 39942 3
2007 33301 0
2008 32574 2
2009 16520 5
2010 23175 7
2011 18483 7
2012 12856 5

Additional historical emission data will be added when it becomes available.

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

Nitrogen oxides

See raw data for this chart

Year Coal Combustion Turbines
1974 27591
1975 23327
1976 27113
1977 32021
1978 22749
1979 24936
1980 29832
1981 30229
1982 23798
1983 26131
1984 28192
1985 31256
1986 31306
1987 34738
1988 30747
1989 30291
1990 24485
1991 30206
1992 23280
1993 33457
1994 30782
1995 16042
1996 17711
1997 15811
1998 16219
1999 16423
2000 16894 477
2001 14951 212
2002 15290 83
2003 17812 32
2004 14111 6
2005 16322 6
2006 14722 7
2007 13305 3
2008 13067 10
2009 4418 6
2010 10040 14
2011 8491 17
2012 6524 15

Additional historical emission data will be added when it becomes available.

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

Carbon dioxide

See raw data for this chart

Year Coal Combustion Turbines
1995 8050806
1996 8577051
1997 7366686
1998 7723744
1999 7718010
2000 8196720 150094
2001 7155042 59349
2002 7240749 26442
2003 8380625 19449
2004 7618450 2844
2005 8861997 3180
2006 8312926 3083
2007 7962886 135
2008 7996675 1808
2009 3242688 495
2010 6557699 2150
2011 5198645 5795
2012 3718102 3338

Additional historical emission data will be added when it becomes available.

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) 160,000 0 0 0 160,000
Hydrogen Fluoride 170,000 0 0 0 170,000
Sulfuric Acid (aerosol) 13,000 0 0 0 13,000
Ammonia 16,300 21 0 0 16,321
Antimony Compounds          
Arsenic Compounds          
Barium Compounds 4,680 654 967,000 45 972,379
Beryllium Compounds          
Cadmium Compounds          
Chromium Compounds          
Cobalt Compounds          
Copper Compounds          
Lead Compounds 154 0 8,640 2 8,796
Manganese Compounds 408 343 39,400 0 40,151
Mercury Compounds 120 0 27 0 147
Nickel Compounds          
Selenium Compounds          
Silver Compounds          
Thallium Compounds          
Vanadium Compounds 265 330 28,000 0 28,595
Zinc Compounds 718 2,202 24,680 0 27,600
Benzo(g,h,i)perylene 0 0 0 0 0
Naphthalene 24 0 0 0 24
Nitrate Compounds          
Dioxin (grams) 1 0 0 0 1
Polycyclic Aromatic Compounds 12 0 3 0 15
Hydrazine          
Total 365,681 3,550 1,067,750 47 1,437,029

 

Gross MWh Generated: 3,703,087
Pounds Released per MWh: 0.388

 

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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