The Western Energy Imbalance Market Governing Body and CAISO Board of Governors were briefed on proposed changes to the WEIM resource sufficiency test.

A Colorado PUC report found that joining an organized wholesale electricity market could save the state’s utilities $50 million to $230 million annually.

Renewable developers don't expect much from the Southeast Energy Exchange Market, saying it falls short of the transparency and competition in RTOs.

CAISO restarted the stakeholder process to expand its Western Energy Imbalance Market from a real-time to a day-ahead interstate market after a 14-month break.

The Western Energy Imbalance Market racked up $301 million in benefits in the third quarter of 2021, surpassing or approaching yearly totals in 2019 and 2020.

The Western Energy Imbalance Market is poised to make its largest expansion ever next spring with the inclusion of the Bonneville Power Administration.

A meeting to hash out an upcoming Oregon study on RTO membership turned to how the state’s participation might fit into other developments in the West.

WAPA's Desert Southwest Region said it plans to join CAISO's Western Energy Imbalance Market, further splitting the PMA's regions between the ISO and SPP.

The WEIM approved participation by utilities within an entity's balancing authority area — a move intended to convince Xcel Energy Colorado to join the market.

CAISO's Board of Governors and the Western Energy Imbalance Market Governing Body agreed to a new split of authority in which FERC could settle disputes.