In 2025, over 782 miles of electricity transmission lines were completed in the United States, down from 1,697 miles the previous year. Projects with a voltage up to 345 kilovolts accounted for the majority of the length completed that year.Â
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U.S. Department of Energy, & FERC. (April 9, 2026). Electric transmission projects completed in the United States from 2019 to 2025, by voltage* (in miles) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/551519/us-line-length-of-electricity-transmission-projects-completed/
U.S. Department of Energy, und FERC. "Electric transmission projects completed in the United States from 2019 to 2025, by voltage* (in miles)." Chart. April 9, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/551519/us-line-length-of-electricity-transmission-projects-completed/
U.S. Department of Energy, FERC. (2026). Electric transmission projects completed in the United States from 2019 to 2025, by voltage* (in miles). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/551519/us-line-length-of-electricity-transmission-projects-completed/
U.S. Department of Energy, and FERC. "Electric Transmission Projects Completed in The United States from 2019 to 2025, by Voltage* (in Miles)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Apr 2026, /statistics/551519/us-line-length-of-electricity-transmission-projects-completed/
U.S. Department of Energy & FERC, Electric transmission projects completed in the United States from 2019 to 2025, by voltage* (in miles) ÌÇÐÄÆƽâ°æ, /statistics/551519/us-line-length-of-electricity-transmission-projects-completed/ (last visited July 28, 2026)
Electric transmission projects completed in the United States from 2019 to 2025, by voltage* (in miles) [Graph], U.S. Department of Energy, & FERC, April 9, 2026. [Online]. Available: /statistics/551519/us-line-length-of-electricity-transmission-projects-completed/
