Notice of new market participants as of 5/27/26

The following market participants have successfully completed the California ISO certification as specified:

New Market Participant: TransAlta Energy Marketing (U.S.) Inc

Address: 110 12th Ave S.W., Calgary, Alberta, Canada, T2P2M1

Identification (SCID): TEMU

Effective Date in Master File: 5/26/26

Certification: Scheduling Coordinator, Convergence Bidder, Congestion Revenue Rights Holder, Western Energy Imbalance Market Participating Resource Scheduling coordinator and an Extended Day Ahead Market Participating Resource Scheduling coordinator

New Market Participant: Macquarie Energy LLC

Address: 500 Dallas Street, Ste. 3300 Houston, TX 77002

Identification (SCID): MACQ

Effective Date in Master File: 5/28/26

Certification: Scheduling Coordinator, Convergence Bidder, Congestion Revenue Rights Holder, Western Energy Imbalance Market Participating Resource Scheduling coordinator and an Extended Day Ahead Market Participating Resource Scheduling coordinator

A list of all scheduling coordinators, convergence bidding entities and congestion revenue rights (CRR) holders is posted on the Become a scheduling coordinator webpage.