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 western United States limits emissions of sulfur dioxide.
• A technology called overfire air limits the production of nitrogen oxides that 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 NO_x emissions by more than 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 add scrubbers to all three units at Allen by Dec. 31, 2018.

Carbon dioxide

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

Nitrogen oxides

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

Sulfur dioxide

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

Toxics Release Inventory

2010 data

All amounts are in pounds

Chemical	Air	Water	Land	Off-Site Disposal	Total
Hydrochloric Acid (aerosol)	210,000	0	0	0	210,000
Hydrogen Fluoride	150,000	0	0	0	150,000
Sulfuric Acid (aerosol)	29,000	0	0	0	29,000
Ammonia	930,000	800	0	0	930,800
Antimony Compounds					0
Arsenic Compounds					0
Barium Compounds	3,530	15,000	720,000	320,010	1,058,540
Beryllium Compounds					0
Cadmium Compounds					0
Chromium Compounds					0
Cobalt Compounds					0
Copper Compounds	211	2,600	19,000	13,000	34,811
Lead Compounds	130	0	5,100	6,212	11,442
Manganese Compounds	386	0	30,000	12,000	42,386
Mercury Compounds	190	5	14	23	232
Nickel Compounds					0
Selenium Compounds					0
Silver Compounds					0
Thallium Compounds					0
Vanadium Compounds	191	2,400	24,000	11,000	37,591
Zinc Compounds	711	2,400	13,000	11,000	27,111
Benzo(g,h,i)perylene	0	0	0	0	0
Naphthalene	33	0	0	0	33
Nitrate Compounds					0
Dioxin (grams)	1	0	0	0	1
Dioxin (lbs)	0	0	0	0	0
Polycyclic Aromatic Compounds	16	0	9	1	25
Hydrazine					0
Total	1,324,399	23,205	811,123	373,245	2,531,972

 

Gross MWh Generated:	5,194,768
Pounds Released per MWh:	0.487

 

 

 

 

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 Kingston 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