气候变化领域集成服务门户(CCPortal): Combined solar power and storage as cost-competitive and grid-compatible supply for China's future carbon-neutral electricity system

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DOI	10.1073/pnas.2103471118
	Combined solar power and storage as cost-competitive and grid-compatible supply for China's future carbon-neutral electricity system
	Lu X.; Chen S.; Nielsen C.P.; Zhang C.; Li J.; Xu H.; Wu Y.; Wang S.; Song F.; Wei C.; He K.; McElroy M.B.; Hao J.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:42
英文摘要	As the world's largest CO2 emitter, China's ability to decarbonize its energy system strongly affects the prospect of achieving the 1.5°C limit in global, average surface-temperature rise. Understanding technically feasible, cost-competitive, and grid-compatible solar photovoltaic (PV) power potentials spatiotemporally is critical for China's future energy pathway. This study develops an integrated model to evaluate the spatiotemporal evolution of the technology-economic-grid PV potentials in China during 2020 to 2060 under the assumption of continued cost degression in linewith the trends of the past decade. The model considers the spatialized technical constraints, up-to-date economic parameters, and dynamic hourly interactions with the power grid. In contrast to the PV production of 0.26 PWh in 2020, results suggest that China's technical potential will increase from 99.2 PWh in 2020 to 146.1 PWh in 2060 along with technical advances, and the national average power price could decrease from 4.9 to 0.4 US cents/kWh during the same period. About 78.6% (79.7 PWh) of China's technical potential will realize price parity to coal-fired power in 2021, with price parity achieved nationwide by 2023. The cost advantage of solar PV allows for coupling with storage to generate cost-competitive and gridcompatible electricity. The combined systems potentially could supply 7.2 PWh of grid-compatible electricity in 2060 to meet 43.2% of the country's electricity demand at a price below 2.5 US cents/kWh. The findings highlight a crucial energy transition point, not only for China but for other countries, at which combined solar power and storage systems become a cheaper alternative to coal-fired electricity and a more grid-compatible option. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Economic competitiveness; Electricity potential; Solar photovoltaic power; Solar plus storage
语种	英语
scopus关键词	Article; China; economics; electricity; phase transition; solar energy
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238339
作者单位	School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control, Tsinghua University, Beijing, 100084, China; Institute for Carbon Neutrality, Tsinghua University, Beijing, 100084, China; Beijing Laboratory of Environmental Frontier Technologies, Tsinghua University, Beijing, 100084, China; Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China; School of Applied Economics, Renmin University of China, Beijing, 100872, China; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Lu X.,Chen S.,Nielsen C.P.,et al. Combined solar power and storage as cost-competitive and grid-compatible supply for China's future carbon-neutral electricity system[J],2021,118(42).
APA	Lu X..,Chen S..,Nielsen C.P..,Zhang C..,Li J..,...&Hao J..(2021).Combined solar power and storage as cost-competitive and grid-compatible supply for China's future carbon-neutral electricity system.Proceedings of the National Academy of Sciences of the United States of America,118(42).
MLA	Lu X.,et al."Combined solar power and storage as cost-competitive and grid-compatible supply for China's future carbon-neutral electricity system".Proceedings of the National Academy of Sciences of the United States of America 118.42(2021).