The Health and Climate Benefits of Economic Dispatch in China's Power System.

Autor: Luo Q; Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States., Garcia-Menendez F; Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States., Yang H; Bren School of Environmental Science and Management, University of California at Santa Barbara, Santa Barbara, California 93117, United States., Deshmukh R; Bren School of Environmental Science and Management, University of California at Santa Barbara, Santa Barbara, California 93117, United States., He G; Department of Technology and Society, Stony Brook University, Stony Brook, New York 11794, United States., Lin J; Department of Electricity Market and Policy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.; Department of Agricultural and Resources Economics, University of California at Berkeley, Berkeley, California 94720, United States., Johnson JX; Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States.
Jazyk: angličtina
Zdroj: Environmental science & technology [Environ Sci Technol] 2023 Feb 21; Vol. 57 (7), pp. 2898-2906. Date of Electronic Publication: 2023 Feb 09.
DOI: 10.1021/acs.est.2c05663
Abstrakt: China's power system is highly regulated and uses an "equal-share" dispatch approach. However, market mechanisms are being introduced to reduce generation costs and improve system reliability. Here, we quantify the climate and human health impacts brought about by this transition, modeling China's power system operations under economic dispatch. We find that significant reductions in mortality related to air pollution (11%) and CO 2 emissions (3%) from the power sector can be attained by economic dispatch, relative to the equal-share approach, through more efficient coal-powered generation. Additional health and climate benefits can be achieved by incorporating emission externalities in electricity generation costs. However, the benefits of the transition to economic dispatch will be unevenly distributed across China and may lead to increased health damage in some regions. Our results show the potential of dispatch decision-making in electricity generation to mitigate the negative impacts of power plant emissions with existing facilities in China.
Databáze: MEDLINE