Ancillary services procurement in HASP and dispatch logic

To prepare for the new market launch, the California ISO filed and received approval from the Federal Energy Regulatory Commission (FERC ) to defer the procurement of ancillary services in hour-ahead scheduling process (HASP), and to procure any required incremental ancillary services after the day-ahead market in the 15-minute Real-Time Pre-Dispatch (RTPD) process. The ISO submitted the Deferred Function Amendment Filing to FERC on October 31, 2008, and indicated that it anticipated reverting back to hour-ahead procurement of ancillary services six to nine months after the new market go-live. Under this initiative, the ISO considers reverting to ancillary services procurement in HASP and proposes solutions to dispatch energy from operating reserves procured from non-dynamic system resources in the hour ahead.