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Transmission reliability

2014 Electric T&D Benchmarking. Transmission reliability. Community Insights Conference August 20-22, 2014 Vail, CO. Agenda. Overview Highlights for 2014 Transmission Reliability Benchmarking Performance Profiles & Trends Profile Measures, 2014 vs 2013 2014 Benchmarking Results

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Transmission reliability

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  1. 2014 Electric T&D Benchmarking Transmission reliability Community Insights Conference August 20-22, 2014 Vail, CO

  2. Agenda • Overview • Highlights for 2014 • Transmission Reliability Benchmarking • Performance Profiles & Trends • Profile Measures, 2014 vs 2013 • 2014 Benchmarking Results • Reliability Improvement Initiatives • Analysis of Sustained Outage Causes • Profile Trends

  3. Overview

  4. Highlights for 2014 • Improvement initiatives are focusing on improved processes, design changes, and increased maintenance. Vegetation management was mentioned more often this year than last. • A significant percentage of sustained outages come from causes that can be considered “preventable”. • We now have four years of relatively complete history of the Profile Metrics for Transmission Reliability. Most results are improved in 2013 over 2012 and 2011, while most were worse in 2011 than 2010. This looks like a positive trend, but more data are needed to say for sure.

  5. Transmission Line Reliability • Statistics • In general, for transmission lines, we are interested in availability, as impacted by sustained outages that may or may not have an impact on an end-use customer. • We ask for raw data on outages by voltage class. We have aligned the definitions with TADS for all voltages (even though TADS only applies to 200kV and above) • Cause codes for all voltages based upon TADS • “Automatic” operation replaces the terminology “unplanned” (with minor impact on the values) • We have only asked for “automatic” outage data • Those codes that are “substation related”are reported in transmission lines, but also in the used for profile measures in the substation section of the report • For Transmission reliability the term “outage” refers to a ‘component’ or line outage (most of which may not have any customer impact).  For instance, you might have had 10 transmission component outages last year but only 3 of them resulted in an outage to a customer.

  6. Profiles & Trends

  7. Transmission line Reliability Profile

  8. < 200kv measures

  9. Sustained Outage Frequency Rate (SOF) < 200kv Results this year are better than last year except 4th quartile. This Year Last Year Transmission Reliability Pg 3 Source: TR15, ST120

  10. Momentary outage frequency (MOF) < 200kv Numbers are higher this year, except for 2nd quartile This Year Last Year Transmission Reliability Pg 4 Source: TR35, ST120

  11. Sustained Outage Frequency, Mileage Adjusted (SCOF100ctmi) < 200kv Numbers this year are better than last year. This Year Last Year Transmission Reliability Pg 13 Source: TR15, ST120

  12. Sustained Outage Duration Time (SODT) <200kv Results are much better this year This Year Last Year Transmission Reliability Pg 8 Source: TR5, ST120

  13. Percent Of Circuits With Zero Interruptions (PCZO) < 200kv Mean is very nearly the same, 1st quartile higher, 3rd and 4th quartiles lower than last year This Year Last Year Transmission Reliability Pg 20 Source: TR45

  14. > 200kv measures

  15. Sustained Outage Frequency (SOF) >200kv All values are better than last year’s This Year Last Year Transmission Reliability Pg 6 Source: TR15, ST120

  16. Momentary Outage Frequency (MOF) > 200kv Mean is higher, 1st quartile lower, median and 3rd quartile higher This Year Last Year Transmission Reliability Pg 7 Source: TR35, ST120

  17. Sustained Outage Frequency, Mileage Adjusted (SCOF100ctmi) > 200kv All values are much lower than last year. This Year Last Year Transmission Reliability Pg 16 Source: TR15, ST120

  18. Sustained Outage Duration Time (SODT) > 200kv Results are much better this year. This Year Last Year Transmission Reliability Pg 10 Source: TR5, ST120

  19. Percent Of Circuits With Zero Interruptions (PCZO) > 200kv All values this year are better than last year. This Year Last Year Transmission Reliability Pg21 Source: TR45

  20. initiatives

  21. Successful Initiatives Used To Improve Reliability Of Transmission Circuits • Summary • Better Maintenance – 23,37,21,30,359 • Design Changes – 22,40,24,31 • Process Improvement – 28,33,32,31 Transmission Reliability Pg 28 Source: TR70

  22. Successful Initiatives Used To Improve Reliability Of Transmission Circuits (Cont’d) • Summary (repeated from previous page) • Better Maintenance – 23,37,21,30,359 • Design Changes – 22,40,24,31 • Process Improvement – 28,33,32,31

  23. Successful Initiatives Used To Reduce Frequency Of Outages Detailed Results of this Question are presented on the next slide. Below is a summary of the categories of the results Transmission Reliability Pg 26 Source: TR50

  24. SUCCESSFUL INITIATIVES USED TO REDUCE FREQUENCY OF OUTAGES Detailed Results, See summary on previous page Transmission Reliability Pg 26 Source: TR50

  25. SUCCESSFUL INITIATIVES USED TO REDUCE FREQUENCY OF OUTAGES (Cont’d) Detailed Results, See summary on second previous page

  26. analysis

  27. Percentage of SUSTAINED AUTOMATIC OUTAGES BY CAUSE Code There are some notable differences between the two classifications. < 200kV > 200kV • Weather & Lightning are major contributors for some • Failed Substation Equipment is significant for some, not for others • Failed AC Circuit Equipment is also significant for some • Unknown and Other are the majority for a few • Difficult to compare companies or voltages because populations are different Transmission Reliability Pg24, 25 Source: TR15

  28. Time Trends, < 200kV Most all measures have improved in in 2013 compared to 2012. 3rd quartile trend is not as positive as mean and other quartiles.

  29. Time Trends, > 200kV Virtually all measures have improved in in 2013 compared to 2012 and 2011. We now have four years of good data, so trends are more clear. Transmission Reliability Pg 6 Source: TR15, ST120, ST125

  30. Total reported sustained outage events from all respondents The bars shown in RED can be considered “preventable”, along with perhaps a few others. The four bars shown in RED account for over 44% of all sustained outages. Total Events = 118

  31. Thank you for your Input and Participation! Your Presenters Ken Buckstaff Ken.Buckstaff@1QConsulting.com310-922-0783 Tim SxybalskiTim.Szybalski@1QConsulting.com 925-878-5066 Debi McLain Debi.McLain@1QConsulting.com760-272-7277 Dave CanonDave.Canon@1QConsulting.com817-980-7909 Dave CarterDavid.Carter@1QConsulting.com414-881-8641 About 1QC First Quartile Consulting is a utility-focused consultancy providing a full range of consulting services including continuous process improvement, change management, benchmarking and more. You can count on a proven process that assesses and optimizes your resources, processes, leadership management and technology to align your business needs with your customer’s needs. Visit us at www.1stquartileconsulting.com | Follow our updates on LinkedIn Corporate Offices California 400 Continental Blvd. Suite 600El Segundo, CA 90245(310) 426-2790 Satellite Offices Maryland 3 Bethesda Metro Center Suite 700Bethesda, MD 20814(301) 961-1505 New York | Texas | Wyoming| Wisconsin

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