Competitive procurement of ancillary services by an independent system operator

Author

Singh, Harry ; Papalexopoulos, Alex

Author_Institution

Pacific Gas & Electr. Co., San Francisco, CA, USA

Volume

14

Issue

2

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

498

Lastpage

504

Abstract

This paper discusses the competitive procurement of ancillary services by an independent system operator (ISO). The paper assumes the existence of an underlying market for energy and explains why this energy market must be accompanied by a market for ancillary services. These services include operating reserves and automatic generation control (AGC) both of which may require generators that are infra-marginal in the energy market to choose between supplying energy or ancillary services. The paper discusses the design of an auction for these services that has formed the basis for the California ISO´s ancillary services market. The paper also discusses the real-time dispatch of ancillary services

Keywords

electricity supply industry; power generation control; power generation dispatch; power generation economics; USA; ancillary services; automatic generation control; competitive procurement; energy market; independent system operator; operating reserves; real-time dispatch; services auction design; Australia; Automatic generation control; Electricity supply industry; Electricity supply industry deregulation; ISO; Power system analysis computing; Power system economics; Procurement; Real time systems; Senior members;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.761872

Filename

761872