The Bureau of Land Management has released its environmental assessment of a compromise reached with the U.S. Defense Department over siting of the 515-mile-long line.
The review found there would be no significant effects from burying a portion of the line to avoid interfering with operations at White Sands Missile Range. Officials were initially concerned the line could reduce testing operations and ultimately threaten national security.
Disagreement over the location put the line in limbo last year.
SunZia is one of seven pilot projects put on a fast track by the administration in hopes of boosting renewable energy development mainly across the West.