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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 and Southwest Power Pool to Remain Separate

LCG, Mar. 21, 2003--Discussion held since summer of 2001 to merge the Midwest Independent Transmission System Operator, Inc. (Midwest ISO) and Southwest Power Pool, Inc. into one organization have ended with the parties agreeing for now to function as distinct entities.

The decision was made known to the the Federal Energy Regulatory Commission. "While the process has been long and involved, both organizations have benefited through working as a single organization for nearly one year," SPP's president, John Marschewski, said. The CEO and president of the Midwest ISO, Jim Torgerson, agreed that the discussions between the SPP and Midwest ISO have helped them to address issues regarding their common border better than might have otherwise been possible.

Torgerson commented, "The conditions required to close the transaction will not be met in the foreseeable future. As such, it is now best that we focus the attention of our separate organizations on the immediate needs of our respective participants."

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