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SPP's Western Expansion Set for Implementation on April 1

LCG, March 13, 2026--The Southwest Power Pool (SPP) announced yesterday that leaders from the participating organizations voted unanimously to proceed as planned with expanding its regional transmission organization (RTO) services into the Western Interconnection. SPP sees the decision to proceed as planned as a strong signal of confidence as SPP and its partner utilities prepare for this key milestone, which will occur overnight between March 31 and April 1.

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Entergy Estimates Customer Savings of $5B from "Fair Share Plus" Data Center Agreements

LCG, March 6, 2026--Entergy yesterday announced approximately $5 billion in total savings for 2.3 million customers in Arkansas, Louisiana and Mississippi resulting from data center customer agreements in those states. Entergy, which completed its first data center customer agreement in 2024, projects the customer savings over the next 20 years and after the regulatory approval or acknowledgement of the public service commissions in those states.

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Industry News

Midwest ISO Continues to Evanesce

LCG, June 15, 2001The Midwest Independent System Operator, which a year ago claimed to be the nation's largest, continues to wither. Yesterday, the shrinking ISO said it has notified the Mid-America Interconnected Network that an agreement reached last September for the two organizations to integrate certain functions has been rendered irrelevant.

MAIN is one of 10 regional councils of the North American Electric Reliability Council, an industry-sponsored organization responsible for operating procedures and protocols that govern the nation's transmission grid.

In a letter to the chairman of MAIN's executive committee, James P. Torgerson, chief executive of the Midwest ISO, said that because Commonwealth Edison Co., Illinois Power Co. and Ameren Corp. are no longer members of the Midwest ISO the rationale for continuing the agreement no longer exists.

Under terms of last year's memorandum of understanding, the Midwest ISO was to have integratedvarious MAIN functions and personnel into the Midwest ISO. However, because the Midwest ISO will not be assuming security coordination and transmission operational control over all MAIN member transmission systems as originally anticipated, the MOU is no longer valid, the letter explains.

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