Environment
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Environmental Effects
Natural gas is recognized as today’s cleanest commercial fossil fuel for power generation. The Lebanon County Generating Station would use the latest emission control technology to meet or be lower than all local, state and federal environmental standards. The plant would be fuel efficient. At combined-cycle facilities, the heat and energy produced by combustion of natural gas drives turbine-generator sets to produce electricity. The exhaust heat from that process is used to produce steam which drives a steam turbine-generator set to produce more electricity without using additional fuel.
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Burning natural gas produces the lowest emission rates of all fossil fuels. The chart above compares actual average emission rates of sulfur dioxide (SO2) and nitrogen oxide (NOX) from U.S. coal-fueled generating stations and all U.S. fossil fuel plants with estimated maximum emission rates at the Lebanon County Generating Station on a lbs./megawatt-hour basis. The chart to the left compares average emission rates of carbon dioxide (CO2) for coal and all U.S. fossil fuel plants with the estimated maximum CO2 emission rates at the proposed Lebanon County facility.
Tenaska’s Record Demonstrates Commitment
Tenaska has demonstrated a commitment to environmental stewardship in the siting, design, construction and operation of its projects. In 2008 benchmarking studies, Tenaska was listed by the Natural Resources Defense Council (NRDC), a national environmental advocacy organization, as having the best record among companies in the U.S. that generate power from fossil fuels for controlling emissions of carbon dioxide (CO2) and as one of the top performing companies for controlling emissions of NOX and SO2.
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Tenaska Tops 2008 NRDC
Benchmarking Air Emissions Rankings **
| Emission (in lbs./megawatt-hours) |
CO2 |
NOX |
SO2 |
| Tenaska Average |
889.5 |
0.2 |
0.01 |
| Fossil Fuel Plant Average |
1,928.0 |
2.6 |
7.3 |
| Tenaska % of National Average |
46.1% |
7.7% |
0.1% |
[View the NRDC Benchmarking Air Emissions Study here.]
Sources:
* Tenaska Lebanon: Projected Maximum Emission Rates (Based on 950 MW Net Power Output)
* U.S. Plants: Environmental Protection Agency, eGRID2007 Version 1.1 (2005 data)
** Natural Resources Defense Council Benchmarking Air Emissions Study, 2008