…To achieve that objective, regions would likely have to build more transmission lines to facilitate the transfer of the power across state lines.

Proponents say implementing an interregional transfer capability requirement — a concept endorsed by the White House and Republican-leaning groups — would be less contentious than other transmission proposals floated by Democrats.

These include measures to enhance the federal government’s backstop authority to approve interstate transmission lines over states’ objections, along with giving the Federal Energy Regulatory Commission the power to spread costs for building transmission lines among ratepayers rather than linking them to developers of a single wind or solar project….