SPP’s Market Monitoring Unit says in its latest report that the Western Energy Imbalance Service market’s average load energy prices rose “significantly” during the spring quarter of 2025.

FERC accepted SPP's tariff revisions to its Western Energy Imbalance Service market that allow market holds for reliability-based concerns when requested by a balancing authority.

CAISO scored a geographically small but symbolically significant victory with the announcement that two Black Hills Energy subsidiaries will move to the ISO’s Western Energy Imbalance Market.

FERC accepted SPP’s revisions to its WEIS market tariff related to the residual supply index and ensuring that affiliated market participants’ resources are evaluated together.

SPP chalked up numerous successes during 2023 without the effects of a global pandemic or severe winter storms.

FERC on Tuesday approved Public Service Company of Colorado’s request to use the social cost of carbon to help dispatch its generation for the next few months.

SPP has added to its senior leadership team by naming Antoine Lucas as vice president of markets and David Kelley as vice president of engineering.

SPP has welcomed back ex-staffer Carrie Simpson to lead the continued development of its service offerings in the Western Interconnection.

Western utilities interested in SPP’s RTO West offering released a study showing the grid operator’s expansion could produce huge annual savings.