Dunn's announcement Tuesday says the Southline Transmission Project will improve New Mexico's electric grid and support the transmission of electricity to key markets while generating revenue for the State Trust.
He also says Southline is striving to use existing corridors and minimize the overall footprint on trust lands.
Developers say the 360-mile-long line would improve reliability of the electrical grid and help bring more electricity generated with renewable resources to regional markets.
Dunn says the New Mexico right of way for the project should be finalized by the end of the year.
Southline Transmission L.L.C. is a subsidiary of Hunt Power, L.P.,