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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

California ISO Goes Ahead with $473 Million Upgrade

LCG, June 26, 2002--The California Independent System Operator has taken a step to remedy a transmission bottleneck on "Path 15."

The ISO approved $437 million to expand Path 15, which connects Northern and Southern California.

Two pre-existing 500 kilovolt lines will be joined by a third in the Central Valley, and major substations will be improved to add 1,500 MW in transmission. The project should be completed in 2004.

The ISO says that the upgrade will yield $100 million a year in savings and up to $300 million in dry years.

Pacific Gas and Electric utility, Trans-Elect Inc., and the Western Area Power Administration will pay for the project, although Trans-Elect will pay the most and therefore receive the larger part of the transmission rights.

The project has yet to be approved by the California Public Utilities Commission.

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