CAISO launches Extended Day-Ahead Market in the West on May 1
Updated
Updated · Utility Dive · Apr 29
CAISO launches Extended Day-Ahead Market in the West on May 1
13 articles · Updated · Utility Dive · Apr 29
PacifiCorp will be the inaugural participant, with Portland General Electric joining in October and several other utilities set to follow in 2025.
Over 90 days of parallel operations have built confidence in EDAM's readiness, with CAISO establishing rapid response teams and customer support for the transition.
The launch marks a major step toward regional electricity markets in the West, with further enhancements and governance changes planned as more entities join and the market evolves.
How might the shift to day-ahead regional markets change renewable integration and curtailment in the West?
With EDAM and SPP Markets+ competing, could market fragmentation actually increase risks for Western utilities and consumers?
If Arizona utilities could save more with EDAM, why are some choosing SPP Markets+ instead?
How will consumers actually experience the impact of these sweeping market changes on their electricity bills and grid reliability?
Will the new ROWE governance structure truly address concerns about CAISO's California-centric control?
How will unresolved resource adequacy issues impact reliability as more entities join EDAM?