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SPP Receives FERC Approval to be First RTO Operating in Both Eastern and Western Interconnections

LCG, March 205, 2025--The Southwest Power Pool (SPP) today announced it will soon be the first regional transmission organization (RTO) in the nation to provide full services in both the Eastern and Western Interconnections of the U.S. power grid. On March 20, the Federal Energy Regulatory Commission (FERC) unanimously approved Southwest Power Pool’s amended tariff that includes provisions that enable Western members to join the RTO. The expansion of the SPP RTO is scheduled to go live April 1, 2026.

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LCG Publishes Updated 2025 Annual Outlook for Texas Electricity Market (ERCOT)

LCG, March 20, 2025 – LCG Consulting (LCG) has released a second edition of its annual outlook of the ERCOT wholesale electricity market for 2025, highlighting the region's rapid transition toward increased reliance on renewable energy resources and battery storage.

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Industry News

MISO Gains Momentum Toward Market Opening

LCG, February 8, 2005--The Midwest Independent Transmission System Operator (Midwest ISO) announced that it has reviewed the final system tests and trials completed last week and will maintain its schedule to open April 1, 2005. The Midwest ISO plans to provide the Readiness Certification to operate the market to the Federal Energy Regulatory Commission (FERC) next week.

The implementation of the scheduled system cutover plan began on February 5 and is scheduled to run through February 20. All market systems are to be used for mandatory trials until financially binding activities start with the opening of the market on April 1.

The Midwest markets were previously scheduled to be launched on March 1, 2005. On January 27, the Midwest ISO announced the one-month delay, which was stated to be in response to stakeholder requests.

In August 2004, the FERC conditionally accepted the Midwest ISO's proposed Open Access Transmission and Energy Markets Tariff (TEMT), which includes Day-Ahead and Real-Time energy markets that use centralized, security-constrained, economic dispatch and LMP-based pricing similar to the operations of PJM, the New York ISO and ISO-New England.

The Midwest ISO covers more than 96,000 miles of high voltage transmission lines located in 15 states and one Canadian province. The implementation of the TEMT will alter the market design across a wide region that extends from eastern Montana through the upper Midwest - including Manitoba - and south to parts of Kentucky and Missouri. Once the TEMT is launched, the FERC's Standard Market Design, with LMP-based pricing, will be in use across the northern half of the Eastern Interconnect.

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