Emissions
Johnsonville Fossil Plant
What TVA is doing about emissions at Johnsonville
TVA has taken a number of steps 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 of sulfur 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 install such burners. Boiler optimization controls, which burn the coal more thoroughly and efficiently, limit the production of nitrogen oxides at the plants 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 will retire six units at Johnsonville no later than Dec. 31, 2015. The remaining four units will be retired no later than Dec. 31, 2017.
Carbon dioxide
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Nitrogen oxides
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Sulfur dioxide
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Toxics Release Inventory
2011 data
All amounts are in pounds
| Chemical | Air | Water | Land | Off-Site Disposal | Total |
|---|---|---|---|---|---|
| Hydrochloric Acid (aerosol) | 2,300,000 | 0 | 0 | 0 | 2,300,000 |
| Hydrogen Fluoride | 250,000 | 0 | 0 | 0 | 250,000 |
| Sulfuric Acid (aerosol) | 260,000 | 0 | 0 | 0 | 260,000 |
| Ammonia | 78,000 | 240 | 0 | 0 | 78,240 |
| Antimony Compounds | |||||
| Arsenic Compounds | |||||
| Barium Compounds | 4,380 | 22,000 | 0 | 3,500,027 | 3,526,407 |
| Beryllium Compounds | |||||
| Cadmium Compounds | |||||
| Chromium Compounds | 315 | 1,600 | 0 | 76,001 | 77,916 |
| Cobalt Compounds | |||||
| Copper Compounds | 288 | 4,800 | 0 | 110,000 | 115,088 |
| Lead Compounds | 256 | 0 | 0 | 56,003 | 56,259 |
| Manganese Compounds | 600 | 26 | 0 | 190,000 | 190,626 |
| Mercury Compounds | 220 | 0 | 0 | 150 | 370 |
| Nickel Compounds | 312 | 260 | 0 | 63,000 | 63,572 |
| Selenium Compounds | |||||
| Silver Compounds | |||||
| Thallium Compounds | |||||
| Vanadium Compounds | 440 | 0 | 0 | 170,000 | 170,440 |
| Zinc Compounds | 1,230 | 1,100 | 0 | 170,000 | 172,330 |
| Benzo(g,h,i)perylene | 0 | 0 | 0 | 0 | 0 |
| Naphthalene | 43 | 0 | 0 | 0 | 43 |
| Nitrate Compounds | |||||
| Dioxin (grams) | 1 | 0 | 0 | 0 | 1 |
| Dioxin (lbs) | 0 | 0 | 0 | 0 | 0 |
| Polycyclic Aromatic Compounds | 19 | 0 | 0 | 11 | 30 |
| Hydrazine | 0 | ||||
| Total | 2,896,103 | 30,026 | 0 | 4,335,192 | 7,261,321 |
| Gross MWh Generated: | 5,267,473 |
| Pounds Released per MWh: | 1.38 |