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Environment 2020
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Entergy's Environmental Performance

On an emissions-per-megawatt-produced basis, Entergy is one of the cleanest utilities in the U.S. Direct carbon dioxide (CO2) emissions from Entergy's power plants are measured by continuous emissions monitors and are reported and verified in accordance with detailed federal quality assurance regulations. Entergy strives to continually lower its emissions profile from the electric generating fleet through nuclear uprates and gas turbine power development strategies such as our recently completed Ninemile 6 combined cycle gas turbine (CCGT) unit.

Entergy is the nation's 7th largest generator of electricity yet the company's emission rates are well below average for SO2 and NOx and significantly below average for CO2

Entergy's investments in fleet transformation and nuclear uprates have greatly reduced both absolute air emissions and emission rates since 2000. Over the past 12 years, we have added approximately 6,000 MW of clean, highly efficient combined-cycle gas turbine generation. CCGT plants are highly efficient at reducing the amount of fuel burned per kilowatt hour of energy produced, thus greatly reducing emissions. Entergy's strategy has allowed the deactivation of over 5,200 MW of older, less efficient gas or oil units. Since 2000, while our annual electric generation grew by 18 percent, our investments in clean energy capacity have resulted in:

  • 70 percent reduction in absolute NOx emissions and 75 percent reduction in NOx emission rates;
  • 32 percent reduction in absolute CO2 emissions and 43 percent reduction in CO2 emission rates; and
  • 62 percent reduction in SO2 emissions and 68 percent reduction SO2 emission rates.

Read more:

Entergy GHG Inventory Documentation and Data

2017 GHG Documentation

2016 GHG Documentation

2015 GHG Documentation

2014 GHG Documentation

2013 GHG Documentation

2012 GHG Documentation

2011 GHG Documentation

Greenhouse Gas

Water Performance


Protecting our Gulf Coast Communities:


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