Tres Amigas

The Tres Amigas project, sponsored by Tres Amigas, LLC, involves a network of underground superconductor pipelines and AC/DC converters located in a 22 square mile area near Clovis, New Mexico.  The project will enable the transfer of electricity between the three major Grids in North America — eastern, western and Texas. The project is being built in three phases.  The first Phase is estimated to cost $500 million and will enable a 750 MW transfer capacity between the Southwest Power Pool (SPP) and PSC of New Mexico.  Phase one is forecast to be completed in 2016.  Phase two is estimated to cost $400 million and be completed by late 2017, increasing the transfer capability to 1,500 MW.  The addition of Phase three will enable transfers between ERCOT and SPP.  Phase three is estimated to cost $1 billion — involving more than 200 miles of underground HVDC construction.  If all goes to plan the project will be complete by 2019 with a transfer capability of 3,000 MW.  The Tres Amigas project also involves the development of 30-miles of 345-kV transmission line originating at Blackwater and terminating at Tres Amigas, N.M.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Tres Amigas LLC 30 345 NM NM 2021
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
1900 Planned Blackwater Tres Amigas
Interstate Build Start NERC ISO/RTO Country Project Partners
WECC US American Superconductor (small owner), Mitsui & Company, primarily Tres Amigas, LLC