Grid integration feasibility and investment planning of offshore wind power under carbon-neutral transition in China

Xinyang Guo, Xinyu Chen (), Xia Chen, Peter Sherman, Jinyu Wen () and Michael McElroy ()
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Xinyang Guo: Huazhong University of Science and Technology
Xinyu Chen: Huazhong University of Science and Technology
Xia Chen: Huazhong University of Science and Technology
Peter Sherman: Harvard University
Jinyu Wen: Huazhong University of Science and Technology
Michael McElroy: Harvard University

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract Offshore wind power, with accelerated declining levelized costs, is emerging as a critical building-block to fully decarbonize the world’s largest CO2 emitter, China. However, system integration barriers as well as system balancing costs have not been quantified yet. Here we develop a bottom-up model to test the grid accommodation capabilities and design the optimal investment plans for offshore wind power considering resource distributions, hourly power system simulations, and transmission/storage/hydrogen investments. Results indicate that grid integration barriers exist currently at the provincial level. For 2030, optimized offshore wind investment levels should be doubled compared with current government plans, and provincial allocations should be significantly improved considering both resource quality and grid conditions. For 2050, offshore wind capacity in China could reach as high as 1500 GW, prompting a paradigm shift in national transmission structure, favoring long-term storage in the energy portfolio, enabling green hydrogen production in coastal demand centers, resulting in the world’s largest wind power market.

Date: 2023
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DOI: 10.1038/s41467-023-37536-3

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