1. Trends in SCADA Technology for Public Power
William (Bill) Rambo Vice President, Business Development Survalent Technology Corporation
Mike Parker
Senior Electric System Dispatcher
Roseville Electric

2. Technology
We are being
asked to do more…
with less

3. Technology
Technology and
the pace of change
are relentless….

4. Technology
Our systems
need
updating

5. Technology

6. Agenda Evolution of SCADA SCADA Costs Web Technology Integration Q & A
City of Roseville case study
Integration
Q & A

7. Simple Human-Machine Interfaces provided basic equipment monitoring
SCADA Timeline
Before SCADA
Simple Human-Machine Interfaces provided basic equipment monitoring
Limited information
Slow
Undependable
Messy…

8. Q: How long have SCADA Systems been around?
SCADA Timeline
Q: How long have SCADA Systems been around?
A: SCADA systems have been used in utilities & industry in the United States since the 1960s

9. SCADA Timeline 1960’s 1990’s First Generation SCADA: Monolithic
Networks non-existent
Proprietary (expensive) hardware and software
Limited communication protocols: strictly scanning and controlling points within the remote device
Limited graphics displays
Communications were slow, unreliable
Second Generation SCADA: Distributed
Third Generation SCADA: Networked
More powerful processors allowed for distribution of individual SCADA system functions across multiple systems
Improved the redundancy and reliability of the system
Still largely proprietary software. PC technology emerging
Information available in real time
Movement toward open system architecture
Windows based systems emerge
Possible now to distribute SCADA functionality across a Wide Area Network and not just a Local Area Network
Easier for the user to connect third party peripheral devices (such as monitors, printers, disk drives, tape drives, etc.) to the system and/or the network
Internet Protocol (IP) for communication between the master station and communications equipment allows for Ethernet connectivity
Enhanced graphical displays
1960’s ’s

10. SCADA Today Integration of standard Information Technology
SCADA Timeline
SCADA Today
Integration of standard Information Technology
OS – Linux and Windows – limited UNIX
Increased use of Intel Processors (Windows and Linux)
IP based RTU Communications (DNP/IP)
Integration of IED’s
Cyber Security – Post 9/11
SCADA connected to the enterprise

11. Price/ Performance SCADA Costs SCADA Features
SCADA Timeline
BOTTOM LINE:
Public Power Benefits tremendously!
SCADA is not just for larger utilities
Price/
Performance
SCADA
Costs
SCADA
Features

12. SCADA Trends
Web Technology

13. SCADA Trends

14. Utilized to provide a secure interface to SCADA
Web Technology
Utilized to provide a secure interface to SCADA
Provide transport for Data to and from SCADA

15. Before Web Technology Proprietary software required
Difficult (and potentially expensive) to give multiple users access to the system
Limited access to SCADA data
Difficult to share access outside of the enterprise

16. Web Technology
DMZ
Web-Server

17. Web Technology
Powerful application to serve real-time SCADA information across the entire enterprise:
Provides secure, read only access to SCADA information via a zero-maintenance web browser client.
Eliminates multiple instances of software to manage,
Custom web pages or,
Maintenance of a separate system.

18. Instant, out-of-the-box SCADA web server.
User-friendly drill-down interface to view configuration and information.
Tabular and Graphical Displays

19. Password protection
Off-loads client workstation data requests from SCADA master
Common pre-configured interface for all users, no need to build custom screens
Supports maps, alarms, operations messages, reports and graphs
Automatically retrieves data from alternate master during fail-over condition.

20. Tabular Displays
Dynamic
Station data, hierarchical
Alarms and operations messages

21. Tabular Displays Reports Tagged devices Abnormal points Failed points
Manually set points

22. Graphics Server uses GUI as SVG graphics generator
Dynamic point updates
Dynamic trend graphs and feeder coloring
Navigation
Automatic and manual layer control
Leverage software investment
Leverage your graphics database investment

23. City of Roseville Application
SCADA Trends
City of Roseville Application

24. City of Roseville, California
Web Technology
City of Roseville, California
Background
Situation
Solution
Benefits

25. Web Technology
City of Roseville, California
>43,000 meters
17 distribution substations
Population doubled in last decade
6-8%System load increase every year for past decade
Peak load 315 MW
SCADA System for 15 years
160 MW power plant coming on-line in 2007

26. Situation Web Technology
Only way to get into SCADA was via single modem
Feeders at capacity
No 24 hour dispatch center
Need for access to SCADA outside of business hours
MS Access database for tracking load information had become support nightmare
Getting data out of SCADA was always a management issue for IT
Database size an issue for MS Access
Many utility personnel who need information from SCADA
Switching Power Marketing Services
Data input from ftp site
System load data to Power Marketer

27. Solution: Web Server Web Technology Web server
Real-time replication of SCADA database to SQL database
Historical data archive
Web server knows when redundant SCADA servers fail over- pulls data from primary SCADA master
Reporting – data from historical and real-time data for load information

28. Benefits: Web Technology Easy access to SCADA
User ID and password
Multiple personnel can access
Security is maintained: Web Server outside of SCADA firewall
Data in SQL database
Scalable, open platform
Web pages for sharing of near real-time data
Internal utility employees
Power Marketer
Easy import of data, using web technology back into SCADA from power provider

29. SCADA Trends
Integration

30. SCADA data is useful in other parts of the organization Examples:
Integration
SCADA data is useful in other parts of the organization
Examples:
Engineering Analysis
Outage Management
Metrics
Load Management
Geographical Information Systems

32. MultiSpeak® Project Objectives
Industry-wide open initiative sponsored by the National Rural Electric Cooperative Association (NRECA) to facilitate development of software interfaces needed by rural electric co-ops
Developed uniform interface definitions for data exchange among commonly used software
Developed consensus among vendors about details of the interfaces, including data dictionary, data objects, and messaging framework

33. What is MultiSpeak? Specification for data exchange interfaces
Treats software applications as “black boxes”
Does not limit vendors from developing new features or working together to provide tighter integration than presently supported by spec

34. What MultiSpeak Does
Defines which data objects need to be exchanged between common software
Defines structure of those data objects
Specifies message structures and messaging architectures
Supports real time and/or file-based data exchanges

35. SCADA Price/Performance for Public Power
Re-Cap
SCADA Price/Performance for Public Power
Web Technology will provide value as an enabling technology:
Interface to SCADA
Transport for data to/from SCADA
Integration of utility systems and elimination of “silos” of data will allow utilities to increase performance

36. Questions?
Thank you!