Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid
The possibility of using electricity dispatching strategies to achieve a 50% nitrogen oxide (NOx) emission reduction from electricity generating units was examined using the grid of the Electricity Reliability Council of Texas as a case study. Simulations of a hypothetical policy demonstrate that im...
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| Format: | Article |
| Language: | en_US |
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Institute of Physics Publishing
2012
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| Online Access: | http://hdl.handle.net/1721.1/70017 |
| _version_ | 1826205207568056320 |
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| author | Alhajeri, Nawaf S. Donohoo, Pearl E. Stillwell, Ashlynn S. King, Cary W. Webster, Mort David Webber, Michael E. Allen, David T. |
| author2 | Massachusetts Institute of Technology. Engineering Systems Division |
| author_facet | Massachusetts Institute of Technology. Engineering Systems Division Alhajeri, Nawaf S. Donohoo, Pearl E. Stillwell, Ashlynn S. King, Cary W. Webster, Mort David Webber, Michael E. Allen, David T. |
| author_sort | Alhajeri, Nawaf S. |
| collection | MIT |
| description | The possibility of using electricity dispatching strategies to achieve a 50% nitrogen oxide (NOx) emission reduction from electricity generating units was examined using the grid of the Electricity Reliability Council of Texas as a case study. Simulations of a hypothetical policy demonstrate that imposing higher NOx prices induces a switch from some coal-fired generation to natural gas generation, lowering NOx emissions. The simulation is for a day with relatively high electricity demand and accounts for transmission constraints. In addition to the lowering of the NOx emissions, there are co-benefits of the redispatching of generation from coal to natural gas, including reductions in the emissions of sulfur oxides (24%–71%), Hg (16%–82%) and CO2 (8.8%–22%). Water consumption was also decreased, by 4.4%–8.7%. Substantial reductions of NOx emissions can be achieved for an increased generation cost of 4–13%, which is due to the higher fuel price of gas relative to coal (assuming a price of $3.87 per MMBTU (MMBTU: million British thermal units) for natural gas, and $1.89 per MMBTU for coal). However, once the system has reduced NOx emissions by approximately 50%, there is little incremental reduction in emissions due to further increases in NOx prices. |
| first_indexed | 2024-09-23T13:09:05Z |
| format | Article |
| id | mit-1721.1/70017 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:09:05Z |
| publishDate | 2012 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | mit-1721.1/700172022-09-28T12:14:51Z Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid Alhajeri, Nawaf S. Donohoo, Pearl E. Stillwell, Ashlynn S. King, Cary W. Webster, Mort David Webber, Michael E. Allen, David T. Massachusetts Institute of Technology. Engineering Systems Division Webster, Mort David Webster, Mort David Donohoo, Pearl E. The possibility of using electricity dispatching strategies to achieve a 50% nitrogen oxide (NOx) emission reduction from electricity generating units was examined using the grid of the Electricity Reliability Council of Texas as a case study. Simulations of a hypothetical policy demonstrate that imposing higher NOx prices induces a switch from some coal-fired generation to natural gas generation, lowering NOx emissions. The simulation is for a day with relatively high electricity demand and accounts for transmission constraints. In addition to the lowering of the NOx emissions, there are co-benefits of the redispatching of generation from coal to natural gas, including reductions in the emissions of sulfur oxides (24%–71%), Hg (16%–82%) and CO2 (8.8%–22%). Water consumption was also decreased, by 4.4%–8.7%. Substantial reductions of NOx emissions can be achieved for an increased generation cost of 4–13%, which is due to the higher fuel price of gas relative to coal (assuming a price of $3.87 per MMBTU (MMBTU: million British thermal units) for natural gas, and $1.89 per MMBTU for coal). However, once the system has reduced NOx emissions by approximately 50%, there is little incremental reduction in emissions due to further increases in NOx prices. National Science Foundation (U.S.) (Grant number EFRI-0835414) 2012-04-13T16:08:33Z 2012-04-13T16:08:33Z 2011-11 2011-08 Article http://purl.org/eprint/type/JournalArticle 1748-9326 http://hdl.handle.net/1721.1/70017 Alhajeri, Nawaf S et al. “Using Market-based Dispatching with Environmental Price Signals to Reduce Emissions and Water Use at Power Plants in the Texas Grid.” Environmental Research Letters 6.4 (2011): 044018. Web. en_US http://dx.doi.org/10.1088/1748-9326/6/4/044018 Environmental Research Letters Creative Commons Attribution-Non-Commercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Institute of Physics Publishing |
| spellingShingle | Alhajeri, Nawaf S. Donohoo, Pearl E. Stillwell, Ashlynn S. King, Cary W. Webster, Mort David Webber, Michael E. Allen, David T. Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid |
| title | Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid |
| title_full | Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid |
| title_fullStr | Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid |
| title_full_unstemmed | Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid |
| title_short | Using market-based dispatching with environmental price signals to reduce emissions and water use at power plants in the Texas grid |
| title_sort | using market based dispatching with environmental price signals to reduce emissions and water use at power plants in the texas grid |
| url | http://hdl.handle.net/1721.1/70017 |
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