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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

Tentative Approach Made by AEP to Join PJM

LCG, Oct. 16, 2003--American Electric Power Co. has avoided making a full-fledged committment to yield control over its transmission system to the grid operator PJM Interconnection LLC, leaving uncertainty as to whether it and other utilities may ultimately be part of PJM or the neighboring Midwest Independent Transmission System Operator.

The utility said it would become a member of PJM, but to a very limited extent that would not cover its inclusion in the grid operator's electricity market. Part of the utility's reluctance to be a fully participating member in PJM is based on opposition by Virginia and Kentucky, states where concern exists over the possibility that PJM would give lower priority to the utility's customers there than would AEP. The Midwest ISO said in a statement filed with the Federal Energy Regulatory Commission that "the proposal represents very little forward progress and carries a very destabilizing policy implication."

The ability of the PJM and Midwest ISO to agree on operating standards will not be helped while the membership of utilities along their common border remains unclear. While AEP's service territory is relatively large, that lends extra weight to any decision it makes. Numerous utilities, among them Exelon Corp., Constellation Power Source, and Public Service Enterprise Group, many of them in PJM, want AEP to commit itself fully, so that market rules and operations can be developed with broad participation. The Virginia State Corporation Commission has signalled that it will continue to oppose such a move.
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