in News Departments > Projects & Contracts
print the content item

Sioux Falls, S.D.-headquartered NorthWestern Energy has announced a proposal to build and operate the Mountain States Transmission Intertie (MSTI), a 500 kV electric transmission line between southwestern Montana and southeastern Idaho. According to the company, the transmission line would meet customer demand for additional transmission capacity and relieve constraints on the existing high-voltage transmission system in the region.

The proposed MSTI project would extend approximately 350 miles to 390 miles from a new substation to be built either near Townsend or Garrison, Mont., to the existing Borah or Midpoint substations located in southern Idaho, NorthWestern Energy says. The line's support structures would be constructed of lattice steel or tubular steel self-supporting towers with an average height between 110 feet and 130 feet. The span between towers would average 1,500 feet, with a right-of-way width of approximately 220 feet.

"We are preparing an application for a certificate under the Montana Major Facility Siting Act (MFSA), and we will then proceed with environmental review under the National Environmental Policy Act and the Montana Environmental Policy," says Rick Walsh, NorthWestern Energy's manager of environmental permitting. "The Montana Department of Environmental Quality will oversee the MFSA application and will be the state lead agency for the subsequent Environmental Impact Statement."

Under the current plan, the transmission line would be placed into service in 2013.


Trachte Inc._id1770
Latest Top Stories

Senate Passes Tax Extenders Bill With Wind PTC Extension

The legislation, which passed in the U.S. House earlier this month, will renew the critical production tax credit through the end of 2014 - giving developers only about two weeks left to start construction.


Transmission Study Shows Nebraska Could Handle A Lot More Wind Power

A new report released by the Nebraska Power Review Board finds that the state already has enough infrastructure to accommodate at least 2 GW of additional wind generation.


Can Wind Energy And Birds Coexist? Environmental Group Says Yes

The Environmental Defense Fund, a supporter of responsible wind energy development, points out ways to help mitigate impacts of turbines on birds and bats.


Another Study Finds Wind Turbines Do Not Affect Nearby Property Values

Research conducted by the University of Guelph focused on regions in Ontario, and the conclusion echoes that of previous studies.


Too Little, Too Late? U.S. House Approves Wind PTC Extension

The U.S. House of Representatives has passed a tax extenders package that would renew the wind production tax credit (PTC) and about 50 other expired tax breaks through 2014. The wind industry argues the short-term fix is virtually no fix at all.

Hybrid Energy Innovations 2015