Allen Fossil Plant Emissions

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 nitrogen oxides in the furnaces’ combustion zones.
  • All three coal units at Allen operate SCRs, reducing nitrogen oxide emissions by up to 90 percent.
  • In support of environmental agreements, TVA will retire the Allen coal-fired units no later than Dec. 31, 2018, replacing them with natural-gas fired combined cycle units.
  • Allen combustion turbines burn low-emitting natural gas or ultra-low-sulfur fuel oil.

Sulfur dioxide

 
YearCoalCombustion Turbines*
197479408 
197599727 
1976106568 
1977111432 
1978103189 
197975602 
198073989 
198174620 
198244935 
198368640 
198460853 
198565717 
198662143 
198773712 
198862774 
198952561 
199059704 
199153844 
199257614 
199380216 
199479250 
199548274 
199620332 
199721323 
199820211 
199913681 
2000188624
20011545424
2002187116
20031878518
2004234955
2005238824
2006174133
2007132101
2008124951
2009118712
2010110499
2011109695
201296094
201399915
201497509
201569502
201676933
201776361
201890214
​

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

*Data includes 32 tons from 2000 to 2014 for units that produce less than 25 megawatts and are not required to be reported to the Environmental Protection Agency.

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

Nitrogen oxides

 
YearCoalCombustion Turbines*
197426058 
197530992 
197635907 
197732416 
197831612 
197930644 
198032855 
198133834 
198221357 
198331643 
198428082 
198530148 
198627139 
198733386 
198827491 
198925141 
199029580 
199128078 
199228406 
199340305 
199442277 
199538673 
199628967 
199729193 
199826389 
199916215 
200018708287
20011856026
20021447144
20031151535
20041130211
20051249112
20061326547
20071262829
200880577
200926034
2010244924
2011253133
201218079
201319371
2014194123
201514676
2016149511
201715821
2018242245

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

*Data includes 88 tons from 2000 to 2014 for units that produce less than 25 megawatts and are not required to be reported to the Environmental Protection Agency.

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

Carbon dioxide

 
YearCoalCombustion Turbines*
199548630720
199643414690
199750270250
199850728070
199934698720
2000511250292688
200149215287032
2002536647313650
200354342096620
200450460742205
200553379302481
200657336677468
200754769543188
20085359344554
20095210346380
201049819592274
201148904792199
20124433339426
20134735258382
201445941448689
201536349831422
201639679073106
20173974924244
20184497101329429

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

*Data includes 143,265 tons from 2000 to 2014 for units that produce less than 25 megawatts and are not required to be reported to the Environmental Protection Agency.

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

Toxics Release Inventory

2015 data

Does Not Meet Reporting Requirements for the TRI Reporting Year

ChemicalAirWaterLandOff-Site DisposalTotal
Hydrochloric Acid (aerosol)    0
Hydrogen Fluoride    0
Sulfuric Acid (aerosol)    0
Ammonia32,00000032,000
Antimony Compounds    0
Arsenic Compounds    0
Barium Compounds    0
Beryllium Compounds    0
Cadmium Compounds    0
Chromium Compounds    0
Cobalt Compounds    0
Copper Compounds    0
Lead Compounds    0
Manganese Compounds    0
Mercury Compounds    0
Nickel Compounds    0
Selenium Compounds    0
Silver Compounds    0
Thallium Compounds    0
Vanadium Compounds    0
Zinc Compounds    0
Benzo(g,h,i)perylene    0
Naphthalene    0
Nitrate Compounds    0
Dioxin (grams)    0
Polycyclic Aromatic Compounds    0
Hydrazine    0
Total32,00000032,000

 

Gross MWh Generated:1,348,462
Pounds Released per MWh:0.024