How many RCs there will be in the Western Interconnection, and who they are, should come into better focus on Sept. 4, said WECC CEO Melanie Frye.

CAISO will make permanent a once-temporary practice of boosting its power reserves to account for utility-scale solar tripping offline because of inverters problem, something NERC has identified as a major reliability issue.

NERC said Wednesday that its annual summer reliability assessment indicates ERCOT and CAISO will face operational challenges and potential reliability concerns this summer, thanks to the two ISOs’ respective loss of baseload generation and lack of fuel assurance.