Energy planning for integrating renewable energy: A dilemma of utilizing ultra-high voltage transmission systems in China

Abstract

Abstract To enable the transition to clean energy and mitigate climate change, China has developed an extensive ultra-high voltage (UHV) transmission network for renewable energy integration. Nevertheless, this network is not being utilized to its full potential, indicating the importance of coordinated energy planning. This article examines the disputes over the Yazhong-to-Jiangxi UHV projects and identifies institutional constraints rooted in the regulatory structure, which hinder the effective utilization of the UHV networks under China’s Electricity Law. These constraints include deficiencies in the energy planning framework, inconsistencies in transmission planning authority, non-binding approval system and gaps in relevant laws. This article concludes with recommendations for reforming the transmission planning and approval system, improving regulatory capacity and amending energy laws to optimize the role of UHV transmission systems in renewable energy integration.