Adjusting electricity generation to avoid exceedances of the ozone air quality standard

James B. McCann, William G. Vizuete, J. Jason West, Seth A. Blumsack

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Periods of high ozone may cause a region to be in nonattainment of the NAAQS. Some of these high ozone episodes may be attributed to high levels of NOx, an ozone precursor. The largest point sources of this NOx include electrical generation units (EGUs). A dynamic system in which daily air quality forecasts are used to inform electrical dispatch models in an attempt to avoid violations of the daily ozone NAAQS is described. The electrical dispatch models would power down or reduce output of EGUs that influence the high ozone, shifting generation elsewhere. The local sensitivity of ozone to individual EGU facility emissions is examined using the direct decoupled method (DDM) of sensitivity analysis in the Comprehensive Air Quality Model with Extensions (CAMx). For the modeled day of 8/4/2005, the maximum first-order ozone sensitivity to NOx emissions from a single nearby coal-fired power plant (CFPP) source was ∼1 ppb over Pittsburgh, PA. Modeled DDM sensitivities of ozone to the NOx emissions vary over time on this day while the net effect of all CFPP emissions was an increase in ozone. Overall, plants closer to the region of interest were associated with higher sensitivities while the effects of emissions farther away were lower, even as this effect was not linear. This is an abstract of a paper presented at the 106th AWMA Annual Conference and Exhibition (Chicago, IL 6/25-28/2013).

Original languageEnglish (US)
Title of host publication106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013
PublisherAir and Waste Management Association
Pages2374-2376
Number of pages3
ISBN (Print)9781629934440
StatePublished - Jan 1 2013
Event106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013 - Chicago, IL, United States
Duration: Jun 25 2013Jun 28 2013

Publication series

NameProceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
Volume4
ISSN (Print)1052-6102

Other

Other106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013
CountryUnited States
CityChicago, IL
Period6/25/136/28/13

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)

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  • Cite this

    McCann, J. B., Vizuete, W. G., West, J. J., & Blumsack, S. A. (2013). Adjusting electricity generation to avoid exceedances of the ozone air quality standard. In 106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013 (pp. 2374-2376). (Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA; Vol. 4). Air and Waste Management Association.