Ari Peskoe, director of the Electricity Law Initiative, speaks with Claire Wayner, senior associate at RMI’s Carbon-Free Electricity program, and Casey Baker, senior program manager at GridLab. They discuss how the utility industry thinks about building new high-voltage transmission lines and how FERC Order No. 1920 attempts to push the industry to develop more transmission to accommodate new, clean sources of electricity while maintaining a reliable and affordable power system.