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Accelerating transmission capacity expansion by using advanced conductors in existing right-of-way.
Chojkiewicz, Emilia; Paliwal, Umed; Abhyankar, Nikit; Baker, Casey; O'Connell, Ric; Callaway, Duncan; Phadke, Amol.
Affiliation
  • Chojkiewicz E; Goldman School of Public Policy, University of California, Berkeley, CA 94720.
  • Paliwal U; Goldman School of Public Policy, University of California, Berkeley, CA 94720.
  • Abhyankar N; Goldman School of Public Policy, University of California, Berkeley, CA 94720.
  • Baker C; GridLab, Berkeley, CA 94704.
  • O'Connell R; GridLab, Berkeley, CA 94704.
  • Callaway D; Energy and Resources Group, University of California, Berkeley, CA 94720.
  • Phadke A; Goldman School of Public Policy, University of California, Berkeley, CA 94720.
Proc Natl Acad Sci U S A ; 121(40): e2411207121, 2024 Oct.
Article in En | MEDLINE | ID: mdl-39312665
ABSTRACT
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Proc Natl Acad Sci U S A / Proc. Natl. Acad. Sci. U. S. A / Proceedings of the national academy of sciences of the United States of America Year: 2024 Document type: Article Country of publication: United States
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Proc Natl Acad Sci U S A / Proc. Natl. Acad. Sci. U. S. A / Proceedings of the national academy of sciences of the United States of America Year: 2024 Document type: Article Country of publication: United States