ERCOT said that enough generation had returned to service to stop the rotating outages that began Feb. 15.

SPP joined ERCOT in initiating rolling blackouts Monday as the entire Midwest experiences an unprecedented winter storm.

Extreme winter weather has placed much of the country’s heartland in a deep freeze and has MISO, SPP and ERCOT scrambling to meet anticipated record demand.

ERCOT has issued several notices and advisories as it prepares for expected record electric usage into early next week.

Peak demand was lower in December than in years past, MISO executives said during an informational forum.

MISO should have adequate capacity to navigate winter but could still face abnormal weather-related outages or a load-shedding event.

The winter of 2019/20 saw PJM with the lowest peak loads of the last seven years, as above-average temperatures kept energy consumption down.

The tamest winter in recent memory brought no emergencies for MISO, though the RTO’s South region was the subject of three weather-related alerts.

NYISO has sequestered approximately two-thirds of its operations staff on site at its two control centers to prevent infection by the COVID-19 coronavirus.

A mild winter across the Midwest footprint made for an easy January for MISO operators, stakeholders heard at the Reliability Subcommittee meeting.