Summary

Washington, D.C. — Transmission lines are crucial for moving electricity from power plants to where it’s used. They ensure that electricity—an essential service—remains affordable, reliable, and resilient. However, the U.S. transmission system is aging and needs expansion and modernization. In many areas, the current network can’t keep up with growing energy demands or connect new power sources. It also lacks the strength needed to import power from neighboring regions during severe weather when local systems are overwhelmed or down.

Despite these issues, recent efforts to improve transmission have been largely inefficient, with development in some areas being sporadic or non-existent. A new report from Americans for a Clean Energy Grid (ACEG) explores the role that state policies can play in advancing cost-effective transmission modernization and expansion.