CAISO Extended Day-Ahead Market (EDAM)
The Public Regulation Commission voted 3-0 to adopt the guiding principles which emphasize customer benefits, transparency, stakeholder involvement and tracking of greenhouse gas emissions.
Leaders of four large utilities reflected on the evolution of Western markets and looked toward the future at CAISO’s Stakeholder Symposium, emphasizing a shift toward more collaboration as large industry players choose which day-ahead market to join.
The Western Area Power Administration said its Sierra Nevada region will pursue “final negotiations” to join CAISO’s Extended Day-Ahead Market, notching another — if expected — victory for the ISO in its competition with SPP’s Markets+.
NV Energy’s decision to join CAISO's Extended Day-Ahead Market rather than SPP's Markets+ was based partly on concerns that participation in the latter would “lead to substantial expenditures with limited results,” a representative of the Nevada utility said.
The Bonneville Power Administration’s commitment to fund the second phase of SPP’s Markets+ won’t be swayed by the departure of the executive leading the agency’s day-ahead market initiative, an official told the Markets+ Participants Executive Committee.
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.
When Arizona utilities file their next integrated resource plans, they’ll be required to include an analysis of cost savings and other benefits they could realize from Western regional market participation.
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.
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