6/17/2014 TVA: Emissions Johnsonville Fossil Plant

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Emissions

Johnsonville Fossil Plant

What TVA is doing about emissions at Johnsonville

TVA has taken a number ofsteps to make the efficient generation

of power at Johnsonville as clean as possible:

The plant burns a low-sulfur blend of coal to limit

emissions ofsulfur dioxide.

Four Johnsonville units use low-NOX burners to reduce

the production of nitrogen oxides. Johnsonville was the first

plant in the TVA system to installsuch burners. Boiler

optimization controls, which burn the coal more thoroughly

and efficiently, limit the production of nitrogen oxides at the

plant’s six other units.

Johnsonville units 1 through 4 use selective non-catalytic

reduction systems to further reduce nitrogen oxide

emissions.

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 willretire six

units at Johnsonville no later than December 31, 2015. The

remaining four units will be retired no later than December

31, 2017.

Johnsonville combustion turbines burn low emitting natural

gas or ultra-low sulfur fuel oil.

Four combustion turbines are also equipped with dry low

NOx burners to reduce NOx emissions.

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.

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
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Nitrogen oxides

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)

340,000 0 0 0 340,000

Hydrogen Fluoride 150,000 0 0 0 150,000

Sulfuric Acid

(aerosol)

180 0 0 0 180

Ammonia 89,000 110 0 0 89,110

Antimony

Compounds

Arsenic Compounds

Barium Compounds 5,790 18,000290,000 740,172 1,053,962
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Beryllium

Compounds

Cadmium

Compounds

Chromium

Compounds

Cobalt Compounds

Copper

Compounds

236 4,800 8,200 20,000 33,236

Lead Compounds 199 81 3,000 7,404 10,684

Manganese

Compounds

508 26 13,000 31,000 44,534

Mercury

Compounds 140 0 10 23 173

NickelCompounds

Selenium

Compounds

Silver Compounds

Thallium

Compounds

Vanadium

Compounds

326 2,900 10,000 25,000 38,226

Zinc Compounds 955 4,800 4,800 20,000 30,555

Benzo(g,h,i)perylene 0 0 0 0 0

Naphthalene 35 0 0 0 35

Nitrate Compounds

Dioxin (grams) 1 0 0 0 1

Polycyclic Aromatic

Compounds

13 0 1 3 17

Hydrazine

Total 587,38230,717329,011 843,602 1,790,712

Gross MWh Generated: 3,460,417

Pounds Released per MWh: 0.517