BENSON, Ariz. (KGUN) — A major transmission project is upgrading power infrastructure across southern Arizona to meet growing energy demands and improve grid reliability for the region. The Southline Transmission Project, co-developed by Grid United and Black Forest Partners, is…
WILLCOX — The Willcox Chamber of Commerce and Agriculture hosted The State of the City, a networking event for local business leaders and the community. Grid United were the main sponsors and participants included Solid Solutions, Strive Vineyards, Northern Cochise…
The American Southwest is a region rich in energy resources but transporting that power to communities that need it remains a challenge. The Southline Transmission Project is addressing this challenge head on by building a 278-mile, high-voltage, bidirectional transmission line…
With Funding from the Investing in America Agenda, DOE Announces $1.5 Billion Transmission Investment to Improve Grid Reliability Across the Country New DOE Study Shows Accelerated Expansion Leading to More Than $270 Billion in Savings Through 2050. WASHINGTON, D.C. – In support…
In October 2023, the U.S. Department of Energy’s Grid Deployment Office selected Southline Transmission Project as part of a $1.3 billion commitment to improve electric transmission lines through the Transmission Facilitation Program. Black Forest Partners and GU Southline LLC, a…
Building America's Next-Generation Infrastructure to Power Our Future.
Black Forest Partners and Grid United are co-developing Southline Transmission Project.
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Southline Transmission, LLC. invites the public to participate at a public hearing before the Arizona Power Plant and Transmission Line Siting Committee (Committee). Southline Transmission, LLC. is submitting an Application to amend the Certificate of Environmental Compatibility (CEC) granted by the Commitee in Line Siting Case No.173 (CEC 173) to obtain a CEC for the Apache to Vail Upgrade Route of the Southline Transmission Project.
January 12, 2026 | 1:00 PM – 5:30 PM
January 13 – 16, 2026, as needed | 9:00 AM – 5:00 PM
DoubleTree by Hilton Tuscon -Reid Park
445 South Alvernon Way, Tucson, AZ, 85711