Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
Volume 37, Issue 3, Pages 1760-1769Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2021.3115092
Keywords
Costs; HVDC transmission; Renewable energy sources; Investment; Planning; Power system reliability; Analytical models; HVDC transmission; interregional transmission; power generation dispatch; power system economics; power system reliability; power system planning; resource adequacy; solar power generation; wind power generation
Categories
Funding
- National Renewable Energy Laboratory [DE-AC36-08GO28308]
- DOE Office of Energy Efficiency and Renewable Energy Wind Energy Technologies Office
- DOE Office of Electricity
- Grid Modernization Initiative
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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. The study proposes, assesses, justifies, and illustrates a major infrastructure change involving two of the world's largest power grids. The results show significant value in increasing the transmission capacity between the interconnections through sharing generation resources and flexibility across regions.
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 world's 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.
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