Welcome to the Mountain States Transmission Intertie (MSTI) Project
NorthWestern Energy proposes to construct, operate and maintain the Mountain States Transmission Intertie (MSTI), a 500 kilovolt (kV), single-circuit electric transmission line that will begin about five miles south of Townsend, Montana and proceed south to Jerome, Idaho.
MSTI will strengthen the western power grid, deliver renewable energy to homes and businesses and contribute to a brighter energy future for our region.
Developing and siting new transmission lines is a long and complex process. NorthWestern Energy is committed to working closely with communities and regulatory agencies to build a safe, reliable transmission system with the fewest impacts as possible.
It is important to make information available and answer questions about the MSTI project. That's why NorthWestern Energy has created this website.
As someone who is interested in this project, you can expect NorthWestern Energy to be open, honest and timely in our communication with you.
NorthWestern Energy is committed to delivering safe, reliable and innovative energy solutions that create value for all customers, communities, employees and investors.
Updates
- Environmental Impact Statement (EIS) preparation update (2/01/2012)
- NorthWestern Energy’s Communications and Outreach process update (2/01/2012)
- High court reverses ruling on MSTI (10/01/2011)