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December 25, 2025

Southwest Power Pool (SPP)

SPP Briefs: Week of March 4, 2019
SPP celebrated the fifth anniversary of its wholesale market by noting it had produced the nation’s lowest electricity costs.
FERC Reverses Waiver on SPP’s Z2 Obligations
FERC reversed a waiver it had issued to SPP on Attachment Z2 of its Tariff and directed it to provide refunds of credit payment obligations, with interest.
MISO, SPP Monitors to Conduct Seams Analysis
State regulators are bringing in the MISO and SPP market monitors to help solve seams issues between the two RTOs.
MISO, SPP Seek Coordinated Plan in 2019
SPP and MISO staff and stakeholders recommended performing a coordinated system plan in 2019-20 to study 6 possible sites for transmission projects.
RTOs Facing Modeling Challenges on Energy Storage
Declining costs and new market rules are opening opportunities for energy storage, but the technology’s operating characteristics are challenging RTOs.
ERCOT Board of Directors Meeting: Feb. 12, 2019
ERCOT CEO Bill Magness told the Board of Directors the grid operator will use favorable budget variances to fund the addition of real-time co-optimization.
AEP Buys Sempra’s Renewables Portfolio in $1.1B Deal
American Electric Power will buy Sempra Energy’s renewable business in a $1.1 billion deal that will triple AEP’s renewable portfolio.
Texas Public Utility Commission Briefs: Feb. 7, 2019
The PUCT issued preliminary certificates of convenience and necessity for transmission that will integrate some of LP&L’s SPP load into the ERCOT system.
FERC Approves South Central Tx Formula Rate Changes
FERC conditionally approved South Central MCN’s proposed revisions to its transmission formula rate and protocols and granted a rehearing request that set a Section 206 proceeding.
MISO, SPP Pushing for Annual Joint Studies
MISO and SPP told stakeholders that there is “more support than not” for the RTOs to conduct a joint study of interregional transmission projects in 2019.

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