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December 11, 2025

Markets+

SPP
SPP Launches Markets+ Phase 2 With $150M Secured
SPP secured $150 million in financing and entered the second phase of development for its day-ahead market Markets+, the grid operator announced.
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Tri-State Tells Colorado PUC Joining SPP RTO in Public Interest
Tri-State asked the Colorado Public Utilities Commission to find it would be in the public interest for the power supplier to join SPP, saying integrating with the RTO would bring significant benefits.
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FERC not in Charge of Modernizing Western Grid, Christie Says

Outgoing FERC Chair Mark Christie and former Colorado Gov. Bill Ritter both emphasized that the West controls the future of the Western interconnection, not Washington.

SPP
Panel Approves SPP Markets+ Phase 2 Governance Transition

The panel of SPP board members overseeing the development of Markets+ has approved the governance transition plan for the construction phase of the day-ahead market. 

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FERC Clarifies Rules for Markets+ ‘Transmission Contributors’ Option

FERC rejected a request by four Western utilities to rehear its approval of the “transmission contributors” option in the SPP Markets+ tariff but provided the utilities clarification on the boundaries of that provision.

Aurora Energy Research
Study Finds PSCo Would Gain More in EDAM than Markets+
The study, conducted by Aurora Energy Research, found EDAM could provide the Denver-based utility $11.2 million more in average annual savings from 2028 to 2040 compared with Markets+, rising to $13.2 million through 2060.
SPP
SPP Readies Participants for Next Phase of Markets+
SPP is preparing participants for the next phase of Markets+ development, when stakeholders will build the day-ahead market's systems, processes and procedures.
Shutterstock
Turlock Irrigation District to Join EDAM in 2027

California-based Turlock Irrigation District has agreed to join CAISO’s Extended Day-Ahead Market in 2027.

Bonneville Power Administration
BPA Exempted from Federal Staffing Cuts, Hairston Says
BPA will not see further staffing cuts, CEO John Hairston said during the agency’s quarterly business review, adding that he hopes to strengthen the workforce when the government lifts federal hiring freezes.
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Debate Lingers After BPA Day-ahead Market Decision
Though BPA removed any uncertainty by selecting SPP’s Markets+ over CAISO’s EDAM, the debate over whether BPA made the right choice likely will heat up as the West confronts a split into two major markets.

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