Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Designing Retirement Strategies for Coal-Fired Power Plants to Mitigate Air Pollution and Health Impacts

Version 1 : Received: 10 April 2024 / Approved: 11 April 2024 / Online: 11 April 2024 (07:43:21 CEST)

How to cite: Campos, C.; Pakhtigian, E.L.; Peng, W.; Landry, J.R.; Wiseman, H.; Pham, A.T. Designing Retirement Strategies for Coal-Fired Power Plants to Mitigate Air Pollution and Health Impacts. Preprints 2024, 2024040782. https://doi.org/10.20944/preprints202404.0782.v1 Campos, C.; Pakhtigian, E.L.; Peng, W.; Landry, J.R.; Wiseman, H.; Pham, A.T. Designing Retirement Strategies for Coal-Fired Power Plants to Mitigate Air Pollution and Health Impacts. Preprints 2024, 2024040782. https://doi.org/10.20944/preprints202404.0782.v1

Abstract

Retiring coal power plants can reduce air pollution and health damages. However, the spatial distribution of those impacts remains unclear due to complex power system adjustments and pollution chemistry and transport. Focusing on coal retirements in Pennsylvania (PA), we analyze six counterfactual scenarios for 2019 that differ in retirement targets (e.g., reducing 50% of coal-based installed capacity vs. generation) and priorities (e.g., closing plants with higher cost, closer to Environmental Justice Areas, or with higher CO2 emissions). Using a power system model of the PJM Interconnection, we find that coal retirements in PA shift power generation across PA and the Rest of PJM region leading to scenario-varying changes in the plant-level release of several air pollutants. Due to air pollution chemistry and transport and socio-demographics, these changes in turn give rise to a reduction of 10 to 182 PM2.5-attributable deaths in PJM across the six scenarios, with most reductions occurring in PA. Scenarios that reduce more coal power generation yield greater aggregate health benefits due to air quality improvements in PA and adjacent downwind regions. In addition, vulnerable populations—in both PA and Rest of PJM—benefit most in scenarios that prioritize plant closures in PA near Environmental Justice Areas. These results demonstrate the importance of considering cross-regional linkages and socio-demographics in designing equitable retirement strategies.

Keywords

coal retirement; air quality; human health; environmental justice

Subject

Environmental and Earth Sciences, Pollution

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.