Accelerating transmission capacity expansion by using advanced conductors in existing right- of- way
成果类型：
Article
署名作者：
Chojkiewicz, Emilia; Paliwal, Umed; Abhyankar, Nikit; Baker, Casey; O'Connell, Ric; Callaway, Duncan; Phadke, Amol
署名单位：
University of California System; University of California Berkeley; University of California System; University of California Berkeley
刊物名称：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN/ISSBN：
0027-15114
DOI：
10.1073/pnas.2411207121
发表日期：
2024-10-01
关键词：
摘要：
As countries pursue decarbonization goals, the rapid expansion of transmission capacity for renewable energy (RE) integration poses a significant challenge due to hurdles such as permitting and cost allocation. However, we find that large- scale reconductoring with advanced composite- core conductors can cost- effectively double transmission capacity within existing right- of- way, with limited additional permitting. This strategy unlocks a high availability of increasingly economically viable RE resources in close proximity to the existing network. We implement reconductoring in a model of the US power system, showing that reconductoring can help meet over 80% of the new interzonal transmission needed to reach over 90% clean electricity by 2035 given restrictions on greenfield transmission build- out. With $180 billion in system cost savings by 2050, reconductoring presents a cost- effective and time- efficient, yet underutilized, opportunity to accelerate global transmission expansion.