The California PUC wants CAISO to come up with a way to pause settlements of certain congestion revenue allocations in the ISO’s upcoming Extended Day-Ahead Market if participants begin to game the market through extensive self-scheduling.

CAISO continues to work to revise the rules around how congestion revenues will be allocated to participants in the ISO’s Extended Day-Ahead Market, which will be launched in spring 2026.

In an ongoing high-stakes analysis, CAISO has determined that transactions between PacifiCorp’s two balancing authority areas can “materially” affect parallel flows on certain CAISO transmission constraints.