CAISO's Western Energy Imbalance Market hit a record $739 million in member benefits in 2021, putting its total close to $2 billion since it launched in 2014.

Public Service Company of Colorado, Platte River Power Authority and Black Hills Colorado Electric said they plan to join SPP’s WEIS market in April 2023.

SPP’s MMU is “strongly” recommending that TCRs' funding shortfall be considered a high-priority item, according to its latest quarterly market reports.

SPP has laid out its clearest explanation yet of its five-year plan to expand its presence and establish an RTO in the Western Interconnection.

CAISO intends in 2022 to focus on long-term transmission planning, interconnecting storage and extending the real-time Western EIM to a day-ahead market.

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

SPP’s Board of Directors approved the RTO’s third competitive transmission project, awarding a 345-kV line’s construction to NextEra Energy Transmission.

SPP’s MMU released its quarterly reports for its RTO and WEIS markets, saying it is evaluating rule changes in the latter to address limited ramp offerings.

FERC commissioners told an audience of Western stakeholders and regulators that they back the formation of a Western RTO; California can't go it alone.

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