The Transmission Interconnection Roadmap sets targets by 2030 concerning project approval time, costs and completion rates. : The United States Department of Energy (DOE) has unveiled what it said is the country’s first-ever roadmap for fast-tracking the connection of renewable energy to the national power grid, in an effort to help achieve the goal of migrating the U.S. to 100 percent clean electricity by 2035. Nearly 12,000 power projects representing 1,570 gigawatts of generation capacity are seeking interconnection to the grid, according to a report by the government-run Lawrence Berkeley National Laboratory (LBL) earlier this month.