Mexico's Ministry of Energy, together with its National Center for Energy Control, will seek a private partner to design, finance, build, install, maintain, manage and operate the high-voltage, direct current (HVDC) power line, under a 30-year contract.
Under the plans, it will connect the Isolated System of Baja California with the National Interconnected System, and run from Mexicali to Hermosillo.
The present timetable for the scheme will see proposals received by July 2018, with a preferred bidder chosen by September.
Earlier this month, the Mexican national bank of public works and services Banobras and the investment promotion agency ProMéxico signed an agreement to promote investment opportunities in the country.