The NERC Board of Trustees approved Wisconsin Public Service Corp.’s and Upper Michigan Energy Resources’ requests to move to ReliabilityFirst from MRO.

The SPP Regional Entity will cease all compliance monitoring and enforcement activities at the close of business Friday.

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.

FERC approved the dissolution of the SPP Regional Entity and the transfer of its members to the Midwest Reliability Organization and SERC Reliability Corp.