1. 1 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Steve Lathrop, PacifiCorp Panel#2: A Day in the Life of Planners/Engineers 2008 PI T&D Users Group Meeting, Atlanta, Sept 10-12

2. 2 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Agenda Area Planning at PacifiCorp Infrastructure Planning Load Duration Curves – a New View of Data Non-SCADA Asset Loads SCADA Accuracy

3. 3 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Area Planning Substation, sub-transmission and non-Main Grid transmission infrastructure Future Infrastructure needs (long-range planning) Daily Operations Issues Asset load analysis Load projections Capital spending Risk-Management data

4. 4 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Area Planning Watch Lists

5. 5 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Area Planning Watch Lists

6. 6 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Area Planning Watch Lists

7. 7 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load / Voltage Analysis Alphabet soup: –Real-time –Historical –Projected –Peak –Instantaneous –Average –Changing ….the differentiator between these is…Time

8. 8 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning Area Coincident Loads –Six transformers serve this area Can I accurately determine area peak load and growth?

9. 9 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning Area Coincident Loads—Load profiles for the six:

10. 10 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning Area Coincident Loads—Projected loads

11. 11 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning Area Coincident Loads—Add all loads coincidentally

12. 12 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning Area Coincident Loads— Projected growth of area load

13. 13 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning

14. 14 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning

15. 15 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Infrastructure Planning Load Projections –Multiple Load Duration Tool v1.1

16. 16 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load Duration Curves Time-Series data converted to time-independent data –Simplifies analysis –Non-engineers understand it

17. 17 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load Duration Curves Demonstrate peak loads, duration of peaks and how many hours load limits are exceeded

18. 18 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load Duration Curves Rearrange data: load-dependent, not time-dependent

19. 19 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load Duration Curves

20. 20 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load Duration Curves

21. 21 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Load Duration Curves

22. 22 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Non-SCADA Asset Loads Substation C has no electronic metering. Can I get load profile data for it? –My Power Flow suggests 1 MW losses total for line sections 1-4 at peak load SCADA CIS Source

23. 23 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Non-SCADA Asset Loads Substation C load is approximated by: Sub C = Sub A – Sub B – Sub D – 1 MW SCADA CIS ~ Source

24. 24 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Non-SCADA Asset Loads Black trace is my ‘pseudo-SCADA’ load profile

25. 25 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Verify SCADA Accuracy Transformer appeared to be overloaded 20-MVA loading guideline 105% loading

26. 26 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Verify SCADA Accuracy

27. 27 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Verify SCADA Accuracy ‘Problem’ surfaced Error ‘Tag’ built Transducer Change-out Error goes to zero

28. 28 © 2008 OSIsoft, Inc. – All Rights Reserved PI T&D Users Group Verify SCADA Accuracy Questions? Steve.Lathrop@PacifiCorp.com