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December 16, 2025

Southwest Power Pool (SPP)

Oklahoma Municipal Power Authority
Texas PUC Rejects SWEPCO Application for Renewables at Pirkey
Texas regulators rejected SWEPCO's application to build renewable generation resources at the site of a coal plant that ceased operations in March.
GridLiance
MISO, SPP Staffs Take Crack at Rate Pancaking
SPP and MISO plan to draft a white paper on rate pancaking and unreserved use, two issues that bedevil utilities along the RTOs’ seam.
Entergy Arkansas
FERC Sides with SPP Over Interconnection Study Complaint
FERC denied a solar farm developer’s tariff waiver request and a complaint against SPP over the RTO's interconnection studies for the planned facility.
SPP
SPP Briefs: Week of May 15, 2023
SPP says it expects “normal” summer operations in its balancing authority and reliability coordinator areas this summer, despite a projected drought.
California State Assembly
CAISO Regionalization Bill Put on Hold
California Assemblymember Chris Holden said he will hold a bill that could eventually turn CAISO into an RTO while he tries to overcome opposition.
Grid Strategies
Minimum Transfer Capability Between Regions Debated at FERC
Parties filing comments with FERC on expanding interregional transfer capability mostly supported the concept, though opinions were split on how to get there.
NextEra Energy Resources
FERC Accepts SPP’s Unexecuted FSA with Ponderosa
FERC accepted an unexecuted facilities service agreement between SPP, Southwestern Public Service and Ponderosa Wind, finding it to be just and reasonable.
SPP
FERC Rejects Protest of SPP PRM Increase
FERC rejected a complaint by three SPP members seeking to overturn the RTO’s decision last year to increase its planning reserve margin from 12% to 15%.
© RTO Insider LLC
Markets+ State Committee Adopts Inclusive Membership Policy
Western state regulators unanimously approved a revised charter for the Markets+ State Committee allowing additional states and Canadian provinces to join.
© RTO Insider LLC
SPP Issues Resource Advisory for May 8-9
SPP has issued resource advisory for its balancing authority footprint May 8-9 because of an expected shortfall from wind resources and maintenance outages.

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