6/17/2014 TVA: Emissions Colbert Fossil Plant

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Emissions

Colbert Fossil Plant

What TVA is doing about emissions at Colbert

TVA has taken a number ofsteps to make the efficient generation of power at

Colbert as clean as possible:

Colbert burns low-sulfur coal to limit emissions ofsulfur 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

Additional historical emission data will be added when it becomesavailable.

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

Nitrogen oxides

Emissions by plant

Allen

Brow nsville

Bull Run

Caledonia

Colbert

Cumberland

Gallatin

Gleason

John Sevier

Johnsonville

Kemper

Kingston

Lagoon Creek

Magnolia

Marshall

Paradise

Shaw nee

Southaven

Widow s Creek

Other sites

Emissions by type

Carbon Dioxide

Nitrogen Oxides

Ozone

Sulfur Dioxide

Greenhouse Gases

Toxics Release Inventory

(TRI)

Tennessee Valley Authority

Years

Sulfur Dioxide Emissions (Tons)

Coal Combustion Turbines

1980 1990 2000 2010

0k

100k

200k

300k
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See raw data for this chart

Additional historical emission data will be added when it becomesavailable.

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

Carbon dioxide

See raw data for this chart

Additional historical emission data will be added when it becomesavailable.

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

Years

Nitrogen Oxide Emissions (Tons)

Coal Combustion Turbines

1980 1990 2000 2010

0k

10k

20k

30k

40k

Years

Carbon Dioxide Emissions (Tons)

Coal Combustion Turbines

1995 2000 2005 2010

0M

10M

2.5M

5M

7.5M
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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

NickelCompounds

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