title: High Electricity Demand in the Northeast U.S.: PJM Reliability Network and Peaking Unit Impacts on Air Quality.
abstract: On high electricity demand days, when air quality is often poor, regional transmission organizations (RTOs), such as PJM Interconnection, ensure reliability of the grid by employing peak-use electric generating units (EGUs). These "peaking units" are exempt from some federal and state air quality rules. We identify RTO assignment and peaking unit classification for EGUs in the Eastern U.S. and estimate air quality for four emission scenarios with the Community Multiscale Air Quality (CMAQ) model during the July 2006 heat wave. Further, we population-weight ambient values as a surrogate for potential population exposure. Emissions from electricity reliability networks negatively impact air quality in their own region and in neighboring geographic areas. Monitored and controlled PJM peaking units are generally located in economically depressed areas and can contribute up to 87% of hourly maximum PM2.5 mass locally. Potential population exposure to peaking unit PM2.5 mass is highest in the model domain's most populated cities. Average daily temperature and national gross domestic product steer peaking unit heat input. Air quality planning that capitalizes on a priori knowledge of local electricity demand and economics may provide a more holistic approach to protect human health within the context of growing energy needs in a changing world.
authors.affiliation: Department of Environmental Science, Rutgers, The State University of New Jersey , 14 College Farm Road, New Brunswick, New Jersey 08901, United States.
authors.forename: Caroline M
authors.initials: CM
authors.lastname: Farkas
authors.affiliation: Department of Environmental Science, Rutgers, The State University of New Jersey , 14 College Farm Road, New Brunswick, New Jersey 08901, United States.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Moeller
authors.affiliation: Center for Energy, Economic and Environmental Policy (CEEEP), Bloustein School of Planning and Public Policy, Rutgers, The State University of New Jersey , 33 Livingston Avenue, New Brunswick, New Jersey 08901, United States.
authors.forename: Frank A
authors.initials: FA
authors.lastname: Felder
authors.affiliation: Department of Environmental Engineering Sciences, University of Florida , Gainesville, Florida 32611, United States.
authors.forename: Barron H
authors.initials: BH
authors.lastname: Henderson
authors.affiliation: Department of Environmental Science, Rutgers, The State University of New Jersey , 14 College Farm Road, New Brunswick, New Jersey 08901, United States.
authors.forename: Annmarie G
authors.initials: AG
authors.lastname: Carlton
mesh_terms: D000393:Air Pollutants; D000397:Air Pollution; D002947:Cities; D004560:Electricity; D008962:Models, Theoretical; D052638:Particulate Matter; D015203:Reproducibility of Results
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter