iconGetting Started
The power industry is changing fast — and that creates opportunities for new participants to enter our competitive market. Be a scheduling coordinator, connect to the grid, or bid into our markets.
Become a participant with the ISO
iconWestern Energy Imbalance Market (WEIM)
WEIM is a wholesale energy trading market for the West. Our scalable and flexible platform allows entities to join in a timeframe that works for their business.
Join the WEIM real-time marketLearn how WEIM works
iconExtended Day-Ahead Market (EDAM)
EDAM will build on the economic, reliability, and environmental benefits of the Western Energy Imbalance Market (WEIM) by optimizing the use of existing transmission and resources in the much larger day-ahead timeframe across an expanded footprint.
Learn more about EDAMJoin the EDAM
iconRC West
The ISO's RC West is the Reliability Coordinator (RC) of record for many balancing authorities and transmission operators in the western United States. An RC oversees grid compliance with federal and regional grid standards, and can determine measures to prevent or mitigate system emergencies in day-ahead or real-time operations.
Learn about RC West
iconRequest application access
Confidential information and data communicated between the ISO and its participants during the course of planning and market activities are protected through robust systems and application security. All systems and applications, except OASIS, require an User Access Administrator (UAA) to grant access and removal.
Learn about requesting access and certificatesBecome a UAA
iconProduct and services
The ISO wholesale energy market is comprised of distinct day-ahead and real-time processes. The energy products and services traded in our market allow us to meet reliability needs and serve load. The market also offers services in which qualified entities can buy and sell congestion revenue rights and engage in convergence bidding activities.
Learn about our products and services
iconResource adequacy
The reliability requirements and resource adequacy programs provide deliverability criteria that each load serving entity must meet, and provide rules for counting resources that must be made available to the ISO. The ISO reliability requirements program is intended to complement the state's efforts to implement resource adequacy programs.
Learn about resource adequacy
