Arizona Public Service and Puget Sound Energy have met the milestones to participate in the CAISO-run Western EIM and will begin trading in the market on Oct. 1.

By Robert Mullin Puget Sound Energy (PSE) and Talen Energy reached an agreement with environmentalists to shut down Units 1 and 2 at the coal-fired Colstrip...

FERC rejected the CAISO proposal to prohibit EIM participants from implementing economic bidding at the market’s external interties.