seams
MISO and SPP staff told stakeholders that they will not perform a Coordinated System Plan in 2025 but will accept transmission issues for their annual review early in the year.
The white paper by The Brattle Group offers a point-by-point comparison of CAISO’s Extended Day-Ahead Market and SPP’s Markets+ that leans in favor of EDAM but stops short of endorsing either market.
MISO, PJM and SPP have failed for years to find a suitable replacement for a 20-year-old system reference they use to portion out flow rights on their system, the so-called freeze date.
Proponents of SPP’s Markets+ contend in their latest “issue alert” that the framework provides a much more equitable solution to tackling market seams than under CAISO’s EDAM.
SPP attempted to allay concerns about its ability to dispatch power among various Western regions during a webinar intended to illustrate its experience with seams management.
A new study commissioned by Renewable Northwest says Powerex is poised to benefit if the West ends up divided between CAISO’s EDAM and SPP’s Markets+.
BPA’s choice of a day-ahead market will not be driven by concerns about the impact of the seams that would divide the two markets proposed for the West, an agency official made clear.
Utility staff charged with managing real-time operations will be equipped to deal with the seams between two Western day-ahead markets, but the situation will be far from ideal, Western state energy officials heard at the CREPC-WIRAB spring conference.
The study finds dividing CAISO’s EDAM from SPP’s Markets+ would create seams that pose a different set of problems than challenges seen at the boundaries of full RTOs in other parts of the U.S.
Stakeholders have discussed the likelihood that there may be two day-ahead markets in the West, CAISO’s Extended Day-ahead Market and SPP’s Markets+ and/or RTO West.
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