CAISO’s WEIM last year hit $5.05 billion in benefits for its members since its inception in 2014, continuing the positive trend of growth tied to an expanding Western footprint.

The Western Energy Imbalance Market topped $4 billion in cumulative benefits in the second quarter of 2023, just six months after it topped the $3 billion mark.

CAISO's Western Energy Imbalance Market reached a record $526 million in benefits in Q3 and neared $3 billion in cumulative benefits since it started in 2014.

CAISO's Western Energy Imbalance Market surpassed $2 billion in total member benefits only 20 months after hitting the $1 billion mark in 2020.