SPP staff are preparing to address critical comments on the grid operator’s revised WEIS Tariff as they work to keep the project on track.

CAISO launched a two-part initiative Wednesday that would alter how Western Energy Imbalance Market participants submit their base schedules.

EIM stakeholders broadly support a proposal that would expand the Governing Body’s approval authority and grant it a “more collaborative” relationship with CAISO’s board.

The proposed expansion of CAISO’s Western Energy Imbalance Market to a day-ahead market won’t be as voluntary as advertised, some stakeholders are arguing.

CAISO issued a proposal outlining the leading edge of its plan to bring day-ahead trading to the Western Energy Imbalance Market.

CAISO presented the Western Energy Imbalance Market’s Governing Body its plan for accommodating hybrid generation and storage resources.

FERC reaffirmed its rejection of a proposed net export limit to help the Western EIM avoid unintended consequences of market power mitigation.

Xcel Energy, Black Hills Colorado Electric, Colorado Springs Utilities and Platte River Power Authority announced they will join CAISO's EIM.

Sadness over the recent death of Robert Kahn suffused this year’s NIPPC annual meeting, where speakers remembered and praised the energy veteran.

Three BANC members and WAPA’s Sierra Nevada division jointly announced they intend to join CAISO's Western Energy Imbalance Market.