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December 17, 2025

Southwest Power Pool (SPP)

Mortensen Wind Energy Group
FERC Denies Tenaska’s Complaints over Wind Curtailments
FERC has denied a Tenaska complaint alleging that grid operators adopted operating guides, resulting in unduly discriminatory curtailment for its wind farm.
NERC
NERC Warns of Ongoing Extreme Weather Risks
The coming decade will see “extraordinary reliability challenges and opportunities” amid rapid changes in the North American electric grid, NERC staff said.
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MISO, SPP Unable to Find Smaller Joint Tx Projects
MISO and SPP announced that they will not pursue any small interregional projects next year from their first Targeted Market Efficiency Project study.
Niskanen Center
FERC Considers Interregional Transfer Requirements
In a workshop, FERC commissioners and stakeholders debated the pros and cons of requiring minimum transfer capability between regions to promote reliability.
SPP
MISO, SPP Fall Short in 5th Try for Interregional Projects
MISO and SPP have again come up empty in their fifth effort to find interregional projects to solve congestion along their seams.
SPP
SPP Board of Directors Briefs: Dec. 6, 2022
SPP staff are finalizing a mitigation strategy for load-responsible entities unable to meet the grid operator’s new 15% planning reserve margin.
SPP
SPP Issues Final Markets+ Proposal
SPP has released the final proposal that details the proposed governance structure, market design and other key features for its Markets+ offering in the West.
SPP
SPP MOPC OKs ‘Late’ Tariff Change Related to EMS Upgrade
SPP members approved a revision request that will allow staff to complete an energy management system upgrade in a timely fashion and reduce project costs.
Energy Strategies/CAISO
West Could Save $1.2B a Year in CAISO EDAM
An extended day-ahead market for CAISO's Western Energy Imbalance Market could produce up to $1.2 billion annually for Western participants, a new study found.
Xcel Energy
FERC Partially Grants Z2 Protests Against SPP
FERC partially granted three complaints filed by members against SPP related to its revenue crediting process under Attachment Z2 of its tariff.

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