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ISA Transmission Project

Sector: Power Generation (CCGT) • Location: Grand Rapids, Hermantown, Minnesota, United States

Source: Duluth News Tribune

Project
Planned

The ISA Transmission Project involves building a new 62-mile, 345-kilovolt transmission line from the Iron Range Substation near Grand Rapids to substations in and near Hermantown, Minnesota. This line will replace a 230 kV line that is over 50 years old and will connect major transmission lines including the Great Northern Transmission Line and the HVDC transmission line. The project includes a o

Status
Prospective
Sector
Power Generation (CCGT), Metal, Steel, Commercial
Location
Grand Rapids, Hermantown, Minnesota, United States of America
Updated
22 Jul 2026
Source
Duluth News Tribune

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Project Information

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The project “ISA Transmission Project” is an infrastructure initiative in the Power Generation (CCGT) sector, located in Grand Rapids, Hermantown, Minnesota, United States. Taiyo aggregates data on it from Duluth News Tribune.

Participants

Not available for this record.

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The ISA Transmission Project involves building a new 62-mile, 345-kilovolt transmission line from the Iron Range Substation near Grand Rapids to substations in and near Hermantown, Minnesota. This line will replace a 230 kV line that is over 50 years old and will connect major transmission lines including the Great Northern Transmission Line and the HVDC transmission line. The project includes a one-mile double circuit line connecting the St. Louis County Substation to the Arrowhead Substation in Hermantown.

Original sector

Energy

Budget

Location

Country

United States of America (USA)

State

Minnesota

City

Grand Rapids, Hermantown

Source

Source

Duluth News Tribune

URL

More Details

Record type

Project

Sector

Power Generation (CCGT), Metal, Steel, Commercial

Article published date

2025-12-15

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