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Vigorous development of solar photovoltaic energy (PV) is one of the key components to achieve China's "30•60 Dual-Carbon Target". In this study, by utilizing the outputs generated by CMIP6 models under different shared socioeconomic pathways (SSPs) and a physical PV model (GSEE), future changes in PV power generation across China are provided for the outlined carbon neutralization period (2051–2070). The results reveal distinct spatiotemporal characteristics in the changes in PV output across China. Overall, compared to the historical period, annual PV power generation is projected to decrease in northern regions and Tibet Plateau with a maximum decrease of ∼4 % under the high emission scenario (SSP585), while southern and central regions exhibit significant increases. Remarkably, under the green development pathway (SSP126), PV power generation is expected to rise by over 10 % in these regions. The magnitude of decrease in the north and increase in the south is projected to become more pronounced with the continuous increase of future carbon emissions. It is anticipated that the three northern regions of China will experience greater decreases in PV power generation in winter compared to other seasons, especially under SSP585. Additionally, the southeast region shows the smallest increase in summer PV generation out of all seasons. Moreover, under SSP126 trajectory, most regions in China exhibit reduced inter-annual and intra-annual variability in PV generation compared to the historical levels. This suggests that pursuing a sustainable path could substantially mitigate potential risks associated with PV generation fluctuations in China. [Display omitted] • A weighted CMIP6 ensemble was used to estimate the PV generation changes over China. • The northern and Tibet regions are projected to decrease in annual PV generation. • Annual PV output will increase in southern and central regions. • China's PV generation shows smaller inter- and intra-annual variability under SSP126. [ABSTRACT FROM AUTHOR]

Carbon capture, utilization and storage (CCUS), has been deemed an essential component for climate change mitigation and is conducive to enabling a low-carbon and sustainable future. Since the 12th Five-year Plan, China has included this technology as part of its future national carbon mitigation strategies. China's policy framework in relation to CCUS has had a strong influencing role in the technology's progress to date. This paper employs the "policy cycle" to analyze China's existing CCUS regulatory framework at the national and provincial level, evaluate its performance and clarify its shortcomings in light of the comparisons of policy movements undertaken in other countries. The results indicate that China's CCUS policy is insufficient for further development of the technology and many issues remain to be solved. This includes the lack of an enforceable legal framework, insufficient information for the operationalization of projects, weak market stimulus, and a lack of financial subsidies. These factors may be the reason we have seen low participation rates of Chinese companies in CCUS and little public understanding of what the technology offers. To overcome these challenges, suggestions are provided for improving China's CCUS legal and policy framework. • The development of China's CCUS policy framework is reviewed. • China's national Five-year Plans referring to CCUS affect provincial policies as they share similar objectives since 2011. • China's national policies influence China's research and engineering practices related to CCUS. • China's CCUS fails to meet the proposed targets in technology roadmap issued during the period of the 12th Five-year Plan. • Recommendations to amend the regulatory framework for CCUS in China are provided. [ABSTRACT FROM AUTHOR]