Former ERCOT Monitor Carrie Bivens has been named vice president of SPP’s Market Monitoring Unit, replacing her predecessor after he took an executive position with the Texas grid operator.

The Texas Public Utility Commission and Potomac Economics' Carrie Bivens have both confirmed that she is resigning as ERCOT’s Independent Market Monitor.

ERCOT's Independent Market Monitor is defending its recent report that the grid operator’s newest ancillary service “likely” raised the real-time market’s energy value by at least $8 billion.

A potential name change for ERCOT's Independent Market Monitor has heightened some concerns that Texas regulators are attempting to restrict the IMM's independence.