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Distribution reliability

2014 Transmission & Distribution Benchmarking Data Review Conference. Distribution reliability. June 25-27, 2014 Nashville, TN. Agenda. Introduction and Guidelines Performance Profiles: Using them as a guide to the report and subsequent analytics Questionnaire and statistical report issues.

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Distribution reliability

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  1. 2014 Transmission & Distribution Benchmarking • Data Review Conference Distribution reliability June 25-27, 2014 Nashville, TN

  2. Agenda • Introduction and Guidelines • Performance Profiles: Using them as a guide to the report and subsequent analytics • Questionnaire and statistical report issues

  3. Guidelines

  4. Statistics IEEE Standard 1366 has become the major guide for definitions on distribution reliability. Though not every utility follows it exactly, some of the key issues identified by this standard include: Outage duration to be considered an interruption Definition of a major event (2.5 Beta Method) IEEE 1366-2012 can be purchased for download at: http://standards.ieee.org/findstds/standard/1366-2012.html There are still some reporting differences among utilities in terms of the following: Step restoration reporting Level of reporting (are single services included) Accuracy of estimates We will also calculate “mileage adjusted” SAIDI and SAIFI values, as well as CEMIx values (adjusted for each integer level) Distribution Reliability

  5. Distribution Reliability (cont) • Worst Circuit Performance • Many jurisdictions have introduced “worst circuit performance” measures. We have asked questions around typical measures (e.g.“bottom 10%”), but do not cover all the possible variations. • We also ask a few questions to highlight some of the adjustments to these measures (in particular low customer counts might skew the measures). • Outage Management System • We ask about OMS systems and features, along with enhancements utilities are investing in to improve the restoration processes • Reliability Improvement Initiatives • Please take the time to provide brief but complete answers to recent improvement initiatives that you have undertaken • Estimated Restoration Times • Customer research shows ERT’s are very important and that most utilities are providing them under normal circumstances; please provide information on your experience with ERTs, both under normal conditions and in storm situations.

  6. Changes For This Year • A new version of IEEE 1366 was issued in 2012. There were no changes to the “2.5 Beta” method for identifying major events, although there is an acknowledgement of the limitations of the method. • Significant changes include: • The definition of CEMIn was changed to include the percentage of customers experiencing “n or more interruptions”. The previous definition was percentage of customers experiencing “more than n interruptions”. We will publish charts based on existing questions. • Definitions were added for CELID, “Customers Experiencing Long Interruption Durations” • Several new questions have been added under the topic Emergency Response. These are a part of our continuing efforts in the area of Storm Restoration. For the most part, they are either check box or text answers.

  7. Practices vs. Initiatives • For our purposes: • Practices are activities, programs or processes that have been around for a while. For these, sufficient time has passed in which to assess their success or failure. We mostly ask about practices that have proven successful in accomplishing a specific goal. • Initiatives are new activities, programs or processes that have been enacted recently with the goal of improvement. These are so recent (1 to 2 years) that insufficient time has passed in which to assess their success.

  8. Performance Profile

  9. Distribution Line Reliability Profile

  10. Statistical Report

  11. SAIDI – Excluding Major Events (2.5 Beta) Last Year This Year Report p7

  12. SAIDI – Excluding Major Events This Year Last Year Report p 6

  13. SAIFI – Excluding Major Events (2.5 Beta) This Year Last Year Report p 11

  14. SAIFI – Excluding Major Events This Year Last Year Report p 10

  15. Customer Interruptions by Cause Two years ago, several companies had “Other” as more than 10% of customer interruptions. After looking at what was included in “Other”, we added “Unknown” as a category. This year, only 1 is significantly over 10%. Meanings of “Other” are on the next page. Report p 39

  16. Meaning of “other” in outage cause tabulations Of the 7 companies reporting meanings of “Other”, 5 mentioned “error” of one type or another. Should we consider adding “Error” as a cause next year? Report p 30

  17. Percent Of Customers By Number Of Interruptions All add to 100%, as they should Calculation used: DR65.1 , DR65.2 , DR65.3 , DR65.4 , DR65.5 This chart is not in the report. It is similar to p45.

  18. DATA VALIDATION CHARTS

  19. DV| SAIDI/SAIFI/CAIDI Value should be near 1.00. Values range from 0.9965 to 1.0064. These are well within the range we expect to see. Some of these have been updated since the data validation webinars. Report p 37

  20. DV: SAIDI (DR5) / SAIDI ALLOCATED (DR30) - EXCLUDING MAJOR EVENTS [V.13] The sum of DR30, less the major events category, should be equal to the response to DR5.1B, giving a ratio for this chart of 1.0 Companies 27 and 28 are significantly less than 1.0; please check your answers. The same two companies have similar issues with SAIFI (DR5)/SAIFI Allocated (DR40). Report p 29, 37

  21. Issues Found: Distribution Reliability

  22. Thank you for your Input and Participation! Your Presenters Ken Buckstaff Ken.Buckstaff@1QConsulting.com310-922-0783 Dave Canon Dave.Canon@1qconsulting.com 817-980-7909 Dave Carter Dave.Carter@1qconsulting.com 414-881-8641 Debi McLain Debi.McLain@1QConsulting.com760-272-7277 Tim. SzybalskiTim.Szybalski@1QConsulting.com 301-535-0590 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 Satellite Offices Corporate Offices California 400 Continental Blvd. Suite 600El Segundo, CA 90245(310) 426-2790 Maryland 3 Bethesda Metro Center Suite 700Bethesda, MD 20814(301) 961-1505 New York | Texas | Washington | Wisconsin

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