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The Western Energy Imbalance Market (EIM)

The EIM is a real-time energy-only market offered by the ISO to any balancing authority area in the western United States. It provides a low-cost, low-risk option that balances load and resources automatically and economically.

 
 
 
 

Exploring a regional independent system operator

A regional ISO would consolidate balancing authority areas to create an integrated transmission planning process and optimization of energy and ancillary services in the day-ahead and in real-time.