paper describes the City of Naperville’s migration from a traditional SCADA system to an integrated SCADA and Substation/Distribution Automation System. The paper will examine: | Migrating from SCADA to Automation D. Gacek Member IEEE O. Geynisman Member IEEE Douglas Proudfoot Kevin Minnick XAsiracZ This paper describes the City of Naperville s migration from a traditional SCADA system to an integrated SCADA and Substation Distribution Automation System. The paper will examine Change Drivers that provided the impetus for the migration The system design criteria and the architecture selected Key features of the system and expected benefits Value-added applications The migration strategy that the City developed Index Terms-- SCADA substation automation integration distribution automation intelligent electronic devices bay controller multi-function devices PLC-based control HMI. I. Introduction The City of Naperville operates a Department of Public Utilities which includes a municipal electric utility. Naperville s electrical distribution system is nearly 90 underground except in older areas of town where overhead facilities are still utilized. The nominal voltage of the system is transformed from and 138kV. There are 6 points of service on the 138kV transmission system from bulk power providerComEd. The City does not have generation capability at this time. TABLE I Electric Department Statistics Supply Source Substations Peak Monthly Demand 7 99 Peak Month Energy Use 7 99 Distribution - Feeder Lines Distribution - Sub Feeder Lines Distribution - Primary Transmission Lines Customers - Total 12 00 Rates Residential ComEd Wholesale Bulk Power at 6 Substations - Metering Locations 12 existing 4 Future 317 680 Kilowatts Million Kilowatt-hours Miles Miles Miles Miles 50 830 mo. customer charge plus cents per kilowatt hour energy charge The service area includes 46 square miles of land within the corporate limits of City of Naperville which presently has a D. Gacek and O. Geynisman are with the City of Naperville Naperville IL 60566 gacekd@ and Geynismano@ D.
