The California ISO has updated the ISO Production Maintenance and Outages Schedule, available on the ISO website at http://www.caiso.com/participate/Pages/ApplicationAccess/Default.aspx, to reflect maintenance for Energy Management System (EMS) on Sept. 20 and 23, 2019.
Please check the schedule for specific times, notes and any additional changes that may impact your systems.
For issues experienced outside of the maintenance window, please contact the ISO Service Desk at (916) 351-2309 or (888) 889-0450.