NGG ▼ -0.4% - National Grid plc $NGG - New Study Finds Transmission Can Save Electricity Customers up to $15.3 Billion While Powering America's Economic Growth and Strengthening National Security National Grid fell 0.4% on news of a study showing that transmission infrastructure upgrades could save U.S. electricity customers $15.3 billion while supporting economic growth and national security. While the findings underscore the potential value of grid modernization—an area central to National Grid's business—the modest decline suggests investors may be digesting the results cautiously or awaiting clarity on regulatory timelines and capital requirements needed to realize these benefits. 01-SEP-2026 10:00 AM ET