The directive: By the end of September, CAISO and SPP must explain to FERC how they’re coordinating along their “seams” in the Western Interconnection.
Ripping at the seams: The Western grid landscape has changed a lot in recent years. CAISO and SPP have both launched new day-ahead markets, and SPP has expanded its footprint. These shifts have created new market boundaries called “seams,” which prompt trading barriers due to varying rules and procedures.
The stakes: “Bringing CAISO and SPP together isn’t just another procedural step, it’s about making sure our grid operators are aligned, and operations remain coordinated across the region,” said FERC Chair Laura V. Swett.
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NEWS: FERC to Western grid operators: Get organized.
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