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MISO Tranche 2.1 Transmission Expansion

Sector: Power Generation (CCGT) • Location: South Dakota, United States

Source: Dakota News Now

Project
Planned

MISO's expansive project known as Tranche 2.1 includes construction of a 345-kilovolt line from Alexandria, Minnesota, to Big Stone City, South Dakota, and development of a new 765-kilovolt line from Big Stone City to White and to Trimont in southwestern Minnesota. This is part of 488 projects planned over 10 years costing $22 billion to expand electric capacity in 15 states including South Dakota

Status
Prospective
Sector
Power Generation (CCGT)
Location
South Dakota, United States of America
Updated
22 Jul 2026
Source
Dakota News Now

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Project Information

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The project “MISO Tranche 2.1 Transmission Expansion” is an infrastructure initiative in the Power Generation (CCGT) sector, located in South Dakota, United States. Taiyo aggregates data on it from Dakota News Now.

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

MISO's expansive project known as Tranche 2.1 includes construction of a 345-kilovolt line from Alexandria, Minnesota, to Big Stone City, South Dakota, and development of a new 765-kilovolt line from Big Stone City to White and to Trimont in southwestern Minnesota. This is part of 488 projects planned over 10 years costing $22 billion to expand electric capacity in 15 states including South Dakota.

Original sector

Energy

Budget

Location

Country

United States of America (USA)

State

South Dakota

Source

Source

Dakota News Now

URL

More Details

Record type

Project

Sector

Power Generation (CCGT)

Article published date

2025-11-11

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