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Storm Restoration

2014 Transmission & Distribution Benchmarking Data Review Conference. Storm Restoration. Nashville, TN June 25-27, 2014. Agenda. Guidelines Review Key Measures Anomalies, Issues, Outliers and Corrections Next Steps. Guidelines. Key Terms and Definitions.

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Storm Restoration

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

  2. Agenda • Guidelines Review • Key Measures • Anomalies, Issues, Outliers and Corrections • Next Steps

  3. Guidelines

  4. Key Terms and Definitions • Storm Event An individual storm or closely spaced series of storms which resulted in numerous, widespread electric service interruptions. Multiple storms are typically grouped and counted as one storm event if restoration from an earlier storm was still in progress when subsequent storms occurred. • Excludable Classify storms as excluded if the majority of restoration days • Storm Event * were excludable as major event days per the IEEE Standard 1366 (2.5 beta method) • Peak Number of The peak number of simultaneous sustained customer Customers Out interruptions that were recorded during a storm event • Total Customers The total number of sustained customer interruptions • Interrupted caused by a storm event calculated on a cumulative basis throughout the duration of the event. Individual customers that may have experienced multiple sustained interruptions during a storm event should be counted multiple times. Do not count momentary interruptions. • * New definition to be added to Glossary

  5. Key Terms and Definitions (Continued) • Significant Storm A storm event that interrupted more than 1% up to 10% of a company’s total distribution end use customers • (cumulative interruptions) • Major Storm A storm event that interrupted more than 10% up to 20% of a company’s total distribution end use customers • (cumulative interruptions) • Catastrophic Storm A storm event that interrupted more than 20% of a company’s total distribution end use customers (cumulative interruptions) • Hours to Complete The time in hours that it took to restore all customers Restoration interrupted by a storm event, starting from the hour when the first service interruptions occurred and extending through the hour when the last affected customer that could receive service was restored • Storm CAIDI = Total Customer Minutes Interrupted/Total Customers Interrupted, calculated for the full duration of a storm event (same timeframe as Hours to Complete Restoration definition)

  6. Key Measures

  7. Storm Activity Profiles We need more companies to report their 2013 data. These early results suggest that the overall storm activity in 2013 was much lower than what was experienced over the previous six years * # of reporting companies that experienced storms in these size ranges

  8. Number of Storm Events Experienced in 2013 Storm experience varied widely across the community Outlier Report page 2

  9. Average Storm CAIDI – 2013 As expected, the average Storm CAIDI increased with storm size (This graph should show parallel bars for each storm size grouped by company, not stacked bars. 1QC will fix) Report page 3

  10. Major and Catastrophic Storms – Percent of Poles Replaced The pole damage for the four 2013 storms was very uniform and falls at the low end of the range experienced in 2007 to 2012 Report page 8

  11. Major and Catastrophic Storms – Total Restoration Cost per Customer Restored (Capital + O&M) The cost per customer restored varied widely on the 2013 storms. Overall the 2013 costs rank at the low end of the very wide range experienced in 2007 to 2012 Report page 10

  12. Major and Catastrophic Storms -Peak Line Staffing Per 1,000 Customers Out at Peak Company 38 should verify its line staffing data for Storm 1. This is the lowest value in our database for major and catastrophic storms going back to 2007. Calculation Used: Storm 1: RP30.1A/RP20f.1A, RP30.2A/RP20f.1A Storm 2: RP30.1B/RP20f.1B, RP30.2B/RP20f.1B Report part 2, page 2

  13. Major and Catastrophic Storms - Peak Total Field Staffing Per 1,000 Customers Out at Peak Company 38 should verify its line staffing data for Storm 1. It’s unusual to deploy less line staffing than tree trimming and other field staffing Calculation Used: Storm 1: RP30.1A/RP20f.1A, RP30.2A/RP20f.1A, RP30.3A/RP20f.1A, RP30.4A/RP20f.1A, RP30.5A/ RP20f.1A, RP30.6A/RP20f.1A Storm 2: RP30.1B/RP20f.1B, RP30.2B/RP20f.1B, RP30.3B/RP20f.1B, RP30.4B/RP20f.1B, RP30.5B/ RP20f.1B, RP30.6B/RP20f.1B Report part 2, page 3

  14. Major and Catastrophic Storms -Descriptions and Damage Summaries Company 38 did not answer the “Excludable?” question Company 30 should provide more complete system damage information Report part 2 page 4 Calculation Used: Data extracted from questions RP20, RP20f and RP31

  15. Major Storms - % Impact Curves Company 30 Storm 2 shows no customers out before the hour of the customer outage peak -- this is unusual Report part 2, page 5 Calculation Used: Storm 1: RP35A/(ST5_T&DDist End Use Customers) * 100, Storm 2: RP35B/(ST5_T&DDist End Use Customers) * 100

  16. Major Storms - Customers Restored (Cumulative) Company 30 Storm 2 shows no customer restorations before the hour of the customer outage peak – this is unusual Calculation Used: Storm 1: Sum RP55A, Storm 2: Sum RP55B Report part 2, page 7

  17. Issues found: Storm Restoration

  18. Next Steps • Data Stewards will work with companies to address their data gaps, outliers and other issues • Insights Conference presentation will include an analysis of all storm activity in the community from 2007 to 2013, including: • Updated Restoration Curves incorporating the 2013 major and catastrophic storms • Updated Correlation Graphs incorporating the 2013 major and catastrophic storms • Highlights of Emergency Response practice information collected this year in the Distribution Reliability section of the questionnaire

  19. Thank you for your Input and Participation! Your Presenters Ken BuckstaffKen.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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