ATLANTA – The ongoing widespread reduction of solar photovoltaic (PV) resources continues to be a notable reliability risk to the bulk power system (BPS), particularly when combined with the loss of other generating resources on the BPS and in aggregate on the distribution system, a joint report from NERC and WECC found. Between June and August 2021, four disturbances involving widespread reduction of power from BPS-connected solar PV resources occurred in Southern California, specifically in areas of high penetrations of solar PV and wind resources.
The Multiple Solar PV Disturbances in CAISO Disturbances between June and August 2021: Joint NERC and WECC Staff Report analyzes the initiating events and performance of the BPS-connected solar PV fleet during the events. The report also documents key findings and provides recommendations to industry for improved performance validation of the solar PV fleet and improved modeling and study practices to identify these issues before real-time operations.
Full Announcement | Multiple Solar PV Disturbances in CAISO Disturbances between June and August 2021: Joint NERC and WECC Staff Report
