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NGGBullishIndustry Newsnews
High materiality8/10

Interregional Transmission Study Signals Major U.S. Grid Value for National Grid

Sep 1, 2026, 10:04 AM EDT1 sourcesAI-analyzed
Why it may matterVerify against the original reporting

The study validates interregional transmission as a cost-effective growth lever, potentially accelerating NGG's U.S. project deployments and favorable rate-base dynamics; however regulatory and siting risks could delay near-term impact.

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National Grid, along with the Electricity Customer Alliance and Converge Strategies, commissioned a S&P Global study evaluating four Eastern Interconnection regions. It concludes that interregional transmission, paired with robust regional grids, yields the greatest consumer value—up to $15.3 billion through 2050—by reducing local generation needs and improving reliability amid rising AI-driven demand.

  • National Grid, ECA, Converge study U.S. transmission with S&P Global. Interregional links boost value.
  • Interregional transmission could save customers up to $15.3B by 2050.
  • Transmission lowers local generation needs by enabling cheaper grid power.
  • Policy update urged for stronger federal authority on transmission planning.

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