Extreme heat in the Desert Southwest and low hydro in the Northwest could pose reliability problems for the Western Interconnection this summer, although the region doesn’t face an alarming risk for grid emergencies, WECC officials said.

NERC is requesting a range of information on inverter-based resource modeling because of a series of grid disturbances in recent years.

Representatives from NERC and the regional entities urged state regulators to learn about the reliability challenges and opportunities of inverter-based resources.

NERC staff said the ERO is preparing for the next phase of its work plan for registering inverter-based resources.

Inverter-based resources took the focus at the monthly meeting of NERC's Standards Committee.

The ERO says the grid could face challenges during periods of extremely high temperatures this summer.

ERCOT's Board of Directors has remanded a contentious rule change on IRB ride-through requirements back to the Technical Advisory Committee to reduce the "daylight" between opposition positions.

ERCOT says recent changes to the calculations used to determine ERCOT contingency reserve service have resulted in smaller quantities of the product this year and stalled the need for further modifications.

Unable to reach a compromise with ERCOT on inverter-based resource ride-through requirements after months of negotiations, stakeholders have managed to push through a potential rule change over the grid operator’s objections.

NERC's Reliability and Security Technical Committee approved several standards actions at its first meeting of 2024.