Southwest Power Pool (SPP)
FERC accepted SPP's tariff revisions that establish subregions for the cost allocation of future byway projects under its highway/byway methodology.
SPP has opened an office in Denver, giving it a physical presence in the Western Interconnection as it seeks to open two different markets in the West.
SPP Markets+ stakeholders unanimously approved the first version of the day-ahead market's protocols, providing a framework for market design, operations and settlements as its future participants build the systems and processes.
MISO and the Minnesota Department of Commerce said federal funding for the Joint Targeted Interconnection Queue portfolio is still in play, though they didn't offer any additional details.
FERC dismissed as moot a complaint by several public interest organizations over SPP’s accreditation methodologies for thermal and renewable resources.
FERC approved an SPP tariff change that adds real-time dispatchable interchange transactions to its Integrated Marketplace, extending the current day-ahead market dispatchable transaction model into the real-time balancing market.
SPP’s Board of Directors approved an updated assessment of the RTO’s 2025 transmission plan that corrects two minor errors and will re-evaluate a third project recently designated as a competitive upgrade.
CAISO and SPP have made “significant progress” on adapting existing tools to tackle seams between the two entities’ respective day-ahead markets, according to a CAISO representative.
The SPP leadership team responsible for strengthening the grid operator’s resource adequacy construct and recommending policy directions closed out 2025 by endorsing two protocol changes related to demand response and the cost of new entry.
FERC approved an SPP tariff revision designed to accelerate the addition of new generation by quickly adding shovel-ready incremental capacity at existing generating sites.
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