ANCILLARY SERVICES (A/S) FUNDAMENTALS & MARKET DESIGN, CHARLESTON, MARCH 18-19, 2019
The emergence of renewable and variable energy resources has drawn attention to the supplemental services — beyond the basics of energy, generating capacity, and power delivery — that utilities, balancing areas and bulk-power systems require to ensure grid stability. Some of these ancillary services(A/S), such as regulation and reactive power, are required during normal operations to maintain the necessary balance between generation and load in real-time and voltages within the required ranges. Other ancillary services, such as contingency reserves, provide insurance to prevent minor problems from becoming full-scale catastrophes, or to restore the bulk-power system to normal operations after a major outage occurs.
This course will explain the functions performed by each ancillary service with a focus on the real-power services. It will also provide a comparison of A/S products across the various North American independent system operators (ISOs). Attendees will leave this program with a clear understanding of what functions these services provide, why they are important and their cost components. It will also prepare attendees to understand how these functions relate to available market participant bidding opportunities,with special emphasis on these three elements of market design: