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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

Poseidon Undersea HVDC Transmission Project Receives Approvals

LCG, March 17, 2015-The proposed 500-MW Poseidon undersea transmission line between South Brunswick, New Jersey and Huntington, New York has received interconnection approvals from the PJM Interconnection and the New York Independent System Operator. Achieving these milestones are important steps for the project, which is planned to begin operations in 2020.

The project developer, Poseidon Transmission, estimates the high voltage direct current (HVDC) project will produce $573 million in direct wholesale energy cost savings and yield $2.5 billion in cost savings for Long Island ratepayers during its first ten years in service.

The 82-mile transmission line will be completely buried along existing rights of way or underwater and will deliver energy to Long Island, New York (NYISO Zone K) from the PJM market.

According to a spokesperson for the project, the New York Public Service Commission (PSC) will now begin its formal project review.

Poseidon Transmission is a subsidiary of Anbaric, a project development company. Anbaric completed the 660-MW Neptune undersea and underground project in 2007. The Neptune Project extends 65 miles between Sayreville, New Jersey and New Cassel, New York on Long Island.
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