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.


Helukabel_id1908
Latest Top Stories

Bird Groups Target LEEDCo's Icebreaker Offshore Wind Pilot

Two bird conservation groups that helped halt a wind project earlier this year argue that Lake Erie Energy Development Corp.'s (LEEDCo) 18 MW offshore demo poses a major risk to regional wildlife.


Report Disputes U.S. Agency's Renewable Energy Projections

A new analysis from the Sun Day Campaign says renewables are slated to provide 16% of U.S. generating capacity by 2018 - over 20 years earlier than forecast by the Energy Information Administration.


Kansas Renewables Mandate Survives Yet Another Attack, But Is It Too Early To Celebrate?

Over the past three years, some legislators have tried to either weaken or repeal the state's renewable portfolio standard, which requires Kansas utilities to reach 20% renewables by 2020.


AWEA Highlights U.S. Wind Success Stories Of 2013

Despite a 92% drop in new capacity last year, the sector still has myriad reasons to celebrate, according to a new report from the American Wind Energy Association.


Feds List New Bird Species As Threatened - Should Wind Developers Be Worried?

The U.S. Fish and Wildlife Service is designating the lesser prairie-chicken as threatened under the Endangered Species Act. An expert explains how this might affect the wind industry.

Acciona_id1907
WomenofWind_id
JLG_id1900
UEA_id1896
AWEA_id1886
bonfiglioli_id1913