EDAM
A group of Southwest electric cooperatives explore ways to motivate the Western Area Power Administration’s Desert Southwest Region to join CAISO’s Extended Day-Ahead Market.
An SPP executive closely involved with developing Markets+ said recent Brattle Group studies on Western day-ahead markets appear to be aimed more at swaying utilities in favor of CAISO’s EDAM than providing an unbiased assessment.
Markets+ proponents argue that the SPP framework allows more flexibility for integrating greenhouse gas emission reduction programs across various states than CAISO’s EDAM.
The West-Wide Governance Pathways Initiative has revised its “regional organization” stakeholder process proposal to expand the size of a key stakeholder committee and boost representation for some groups.
The study comparing key features of CAISO’s EDAM and SPP’s Markets+ contains “several material misstatements of facts” and overlooks evidence “directly contrary to its conclusions,” Powerex contends.
BPA would earn $65 million in annual benefits from joining CAISO’s EDAM but face $83 million in increased yearly costs from participating in SPP’s Markets+, according to a new Brattle study.
CAISO described to stakeholders how it will apply the Extended Day-Ahead Market transmission revenue recovery mechanism to its own balancing authority area.
State utility commissioners who launched the West-Wide Governance Pathways Initiative in July 2023 have praised the initiative’s “Step 2” proposal to create a “regional organization.”
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.
The next phase of the Price Formation Enhancements Initiative will look to address issues around market power mitigation, scarcity pricing and fast-start pricing.
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