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SPP and Member Utilities Successfully Achieve Western Expansion Milestone

LCG, April 2, 2026--Southwest Power Pool (SPP) today announced that the expansion of its service territory into the Western Interconnection has been a success. The milestone makes SPP the first regional transmission organization (RTO) with services spanning the Eastern and Western Interconnections. Its member organizations, which cover all or part of 17 states, can now benefit from a more operationally and geographically diverse integrated system.

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Holtec Achieves Milestone towards Restarting Palisades Nuclear Facility and Advances Plans to Build Two SMRs at Palisades Site

LCG, March 31, 2026--Holtec International yesterday announced that it successfully completed a milestone test necessary to return Holtec's Palisades Nuclear Generating Station to service. The 805-MW pressurized water reactor (PWR) is located in Michigan and was shut down by Entergy in May 2022. Holtec acquired the facility in June 2022 and has pursued a path to return the plant to service.

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Industry News

Arrowhead-Weston Transmission Project Moves Forward

LCG, August 27, 2004--The Marathon County Board approved a proposal from American Transmission Company (ATC) to allow a new, 345-kV transmission line through a county-owned recreational area. The overall Arrowhead-Weston line between Hermantown and Wausau will extend 220 miles and is estimated to cost $420 million. The plan calls for completion of the project by 2008. Similar land use agreements will be required with other counties, plus about 850 landowners in Wisconsin and Minnesota.

The Wisconsin Public Service Commission last year approved construction of the Arrowhead-Weston line. Utilities, including Wisconsin Public Service Corp. and Minnesota Power, say it is needed to improve electric reliability. Furthermore, with locational marginal pricing (LMP) to be introduced next year by the Midwest ISO, the additional transmission capacity will tend to reduce locational price volatility.

Earlier this year, Minnesota Power started work on the Hermantown to St. Louis River section and plans to complete the 12-mile segment by early 2005.

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