The U.S. wants to become a net-zero emissions economy by 2050. That will mean a lot of new generation from renewable energy. It also means more transmission networks are needed to bring it onto the grid. But there's a debate over how that new transmission should be built - between a competitive or monopoly approach. Today, we look at why competition is so divisive and why each side thinks they should build the next generation of transmission infrastructure. Related Listening: Texas' new power grid problem (Apple / Spotify) Green energy gridlock (Apple / Spotify) For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org. Music by Drop Electric. Find us: TikTok, Instagram, Facebook, Newsletter.