The Value of Increased HVDC Capacity Between Eastern and Western U.S. Grids: The Interconnections Seam Study

Aaron Bloom, Josh Novacheck, Greg Brinkman, James McCalley, Armando Figueroa-Acevedo, Ali Jahanbani-Ardakani, Hussam Nosair, Abhinav Venkaytraman, Jay Caspary, Dale Osborn, Jessica Lau

Research output: Contribution to journalArticlepeer-review

12 Scopus Citations

Abstract

The Interconnections Seam Study examines the potential economic value of increasing electricity transfer between the Eastern and Western Interconnections using high-voltage direct-current (HVDC) transmission and cost-optimizing both generation and transmission resources across the United States, proposing, assessing, justifying, and illustrating a major infrastructure change involving two of the worlds largest power grids. The study conducted a multi-model analysis that used co-optimized generation and transmission expansion planning and production cost modeling. Four transmission designs under eight scenarios were developed and studied to estimate costs and potential benefits. The results show benefit-to-cost ratios that reach as high as 2.5, indicating significant value to increasing the transmission capacity between the interconnections under the cases considered, realized through sharing generation resources and flexibility across regions.
Original languageAmerican English
Pages (from-to)1760-1769
Number of pages10
JournalIEEE Transactions on Power Systems
Volume37
Issue number3
DOIs
StatePublished - 2022

NREL Publication Number

  • NREL/JA-6A40-72390

Keywords

  • HVDC transmission
  • interregional transmission
  • power generation dispatch
  • power system economics
  • power system planning
  • power system reliability
  • resource adequacy
  • solar power generation
  • wind power generation

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