Document Tags
- 1997
- 1999
- 2000
- 2001
- 2002
- 2003
- 2004
- 2005
- 2006
- 2007
- 2008
- 2009
- 2010
- 2011
- 2012
- 2013
- annual report
- Arizona
- BLM
- Building Trust
- Bureau of Land Management
- California
- Climate Change
- Colorado
- Colorado River Delta
- Downtown
- Economy
- Energy
- Growth
- Hunting Fishing
- Idaho
- Land Conservation
- LILP
- Lincoln Institute of Land Policy
- Mainstreet
- Mexico
- Mining
- Montana
- National Park Service
- Nevada
- newsletter
- NPS
- project summary
- renewable energy
- Resource Extraction
- Restoration
- Rivers
- Smart Growth
- State Trust Lands
- STL
- Street Smart
- Thomas R. Brown Foundations
- Tourism
- Transportation
- utah
- Vegetation Management
- Water
- Water Conservation
- Westwide
- WestWord
- Wildlife
- Wyoming
Get Social with the Sonoran Institute
Watch us on YouTube
Sonoran Institute on Facebook Save the Colorado River Delta
Discover our blogs
Follow our Tweets
Sign up for our newsletter:
Library PowerLine PowerLine - Southline Transmission - Case Study
Southline Transmission Project
Southline Transmission Project Map
Project Description
Southline Transmission project is a proposed 230/345 kV line linking substations near Afton, New Mexico and Tucson, Arizona. It would be divided into two sections:
- New construction: Approximately 240 miles between the Afton substation in New Mexico and the Apache substation in Arizona is planned to become a new 345 kV double-circuit transmission line. This section will enable potential access to the rich renewable resource areas of southern New Mexico.
- Upgrades to existing lines: Approximately 120 miles between the Apache substation and Tucson, Arizona would consist of upgrades to existing single circuit 115kV transmission lines, replacing them with double-circuit 230 kV lines.
The Southline Transmission project is attempting to minimize environmental impacts as much as possible by improving existing transmission lines where feasible and in other locations using existing corridors such as abandoned rail lines. The exact route has not yet been selected.
Status
Southline is currently working through federal, state and local permitting processes. Construction is expected to begin in 2014, with a target in-service date in 2015.
Resources
- Southline Transmission Project
- Southline Transmission Project Map
- Southline Transmission Project FAQs
- Southline Transmission Project Fact Sheet
Organizations: Southline Transmission, LLC; Hunt Power, LP; Black Forest Partners, LP
Location: Arizona, New Mexico
Planning phase: pre-planning (siting)
Written by: Alison Berry –
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Last Updated: December 13, 2012
