Opening New Energy Pathways Across the West
The Southwest Intertie Project-North (SWIP-North) is a bidirectional 500 kV transmission line that will link Nevada and Idaho, strengthen grid reliability, reduce congestion and open new energy pathways across the West.
Completing the Southwest Intertie Project
SWIP-North is the final segment of a high-voltage transmission corridor running from southern Nevada to southern Idaho. It completes the connection to two existing Nevada projects: the 60-mile DesertLink line connecting the Eldorado and Harry Allen substations and the 231-mile ON Line connecting the Harry Allen and Robinson Summit substations.
SWIP-North’s 500 kV transmission line will extend 209 miles through Nevada and 76 miles through Idaho, primarily within designated energy corridors and alongside existing infrastructure, where practical.
- 24 miles on private land
- 32 miles on private land
Connecting the Pacific Northwest and the Desert Southwest, this Project Delivers:
On Track for 2028 Operation:
Opening New Energy Pathways Across the West
SWIP-North is the final segment of the Southwest Intertie Project — a transmission corridor first conceived in the 1980s and advanced by LS Power since it acquired development rights in 2005. Once complete, the corridor will span 576 miles, connecting Idaho’s Magic Valley near Twin Falls to Nevada’s Eldorado Valley south of Las Vegas.
How We Work
WILDLIFE AND HABITAT
In coordination with the Bureau of Land Management (BLM), Nevada Department of Wildlife (NDOW), and U.S. Fish & Wildlife Service, the project plan includes key design considerations that will protect wildlife and habitat.
WEED MANAGEMENT AND GRAZING
Disturbed areas will be restored following construction along with ongoing vegetation monitoring. Our commitment is to leave the land in as good or better condition than before construction.
COMMUNITY SUPPORT
More than just electrical connections, we connect communities where our transmission infrastructure is located. We’re proud to support more than 20 non-profits and organizations in Nevada and Idaho.
ON-GOING COMMUNICATION
A locally-based team member will be available as the primary point of contact throughout construction. Landowners will receive advance notice of upcoming activity. If you have any concerns, reach out to us.
Project Updates & Resources
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