IEEE Benchmark Year 2020 Results for 2019 Data

2020 Distribution Reliability Working Group

Virtual Meeting

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Background to IEEE DRWG Benchmark Study

1. Initiated in 2003, conducted annually

2. Participants are anonymous with key identifier to retain anonymity

3. Participation list is not revealed to anyone

4. Each participant can choose to share their results

5. No inference is made about good or bad reliability

6. Intended to provide information for users to assess their performance relative to peers

7. Called the 2020 Study (for 2019 Results)2

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Benchmarking• Using annual key metrics (SAIDI, SAIFI and CAIDI) to assess

performance of a system may be useful, however, needs to be tempered

• DRWG Study attempts to identify various aspects that could cause a difference in reported metrics

• Data may not be directly comparable, since – Data collection & system differences exist

– Certain exclusion differences can occur, although we strive to have the differences minimized

• IEEE 1366-2003/2012 • addresses data issues by clearly defining the rules (i.e. what data should be

excluded)

• It DOES NOT address the data collection issues

• Companies may not report all forms of outages, due to data collection issues or other reasons

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Region 0: Spans States or Unknown

Region 1: Northeast

Region 2: Mid-Atlantic

Region 3: Southeast

Region 4: Midwest

Region 5: Southwest

Region 6: South

Region 7: Northwest

Northwest: 8

Participants

Southwest: 12

Participants

Midwest: 18

Participants

South: 9

Participants Southeast : 4

Participants

Northeast: 6

Participants

Mid-Atlantic:

23 Participants

Regions represented by the participants

2020 Benchmark Study

Spans States or Other: 9

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Respondents•About 260 companies have responded at some time

•2020 Survey: 89 entries responded

SAIDI ALL SAIDI IEEE SAIFI ALL SAIFI IEEE CAIDI ALL CAIDI IEEE

0 MIN 40 29 0.46 0.35 24 21

1 Q1 152 86 1.11 0.88 123 97

2 MEDIAN 233 126 1.44 1.12 181 116

3 Q3 403 178 1.67 1.39 251 133

4 MAX 1395 489 6.68 6.50 699 340

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Respondents by Utility Size

Quartile Small 6 SAIDI ALL SAIDI IEEE SAIFI ALL SAIFI IEEE CAIDI ALL CAIDI IEEE

0 MIN 87 45 1.03 0.81 70 56

1 Q1 154 73 1.57 1.14 88 57

2 MEDIAN 169 103 1.68 1.32 99 71

3 Q3 479 174 2.20 1.46 173 113

4 MAX 672 281 3.41 2.28 349 172

Quartile Medium 48 SAIDI ALL SAIDI IEEE SAIFI ALL SAIFI IEEE CAIDI ALL CAIDI IEEE

0 MIN 40 29 0.46 0.35 24 21

1 Q1 153 102 1.14 0.97 117 101

2 MEDIAN 250 140 1.48 1.17 181 124

3 Q3 440 189 1.74 1.40 259 140

4 MAX 909 485 6.68 6.50 507 195

Quartile Large 34 SAIDI ALL SAIDI IEEE SAIFI ALL SAIFI IEEE CAIDI ALL CAIDI IEEE

0 MIN 83 48 0.79 0.63 62 53

1 Q1 156 85 1.07 0.85 143 103

2 MEDIAN 238 107 1.25 1.01 190 110

3 Q3 305 156 1.58 1.22 244 133

4 MAX 1395 489 2.55 2.18 699 340

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Historic SAIDI-IEEE & Total

98105 109

103

8189 106 93

85 86 8197

7885 86

145 146 144155

116128

143

126115 115 115

124 120 123 126

192 198 200 196

167158

171163 158 159

166155

189

168178

75

125

175

225

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Min

ute

s

2020 IEEE Benchmark: 2005 - 2019 IEEE SAIDI Quartiles

1st/2nd Qtrle IEEE SAIDI 2nd/3rd Qtrle IEEE SAIDI 3rd/4th Qtrle IEEE SAIDI

128 134 142178

106 125 202 153122 115 107 127 134 127 152

217 236 207

302

181211

310236

181 168 173 187222 209 233

366440

333

577

264

347

620

743

285 261 279 263

382 399 403

50

150

250

350

450

550

650

750

850

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Min

ute

s

2020 IEEE Benchmark: 2005 - 2019 Total SAIDI Quartiles

1st/2nd Qtrle Total SAIDI

2nd/3rd Qtrle Total SAIDI

3rd/4th Qtrle Total SAIDI

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Historic SAIFI-IEEE & Total

9

Historic CAIDI-IEEE & Total

10

Total (STD) SAIDI 2020

11

Total (STD) SAIFI 2020

12

Total (STD) CAIDI 2020

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Major Event Excluded (IEEE SAIDI 2020)

14

Major Event Excluded (IEEE SAIFI 2020)

15

Major Event Excluded (IEEE CAIDI 2020)

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We ask you a couple key questions

Trans Substation Breaker Recloser Fuses Svc Trans Customer 2 1/2 beta

Yes 83 85 85 85 84 84 68 60

No 6 4 4 4 5 5 21 29

% Yes 93% 96% 96% 96% 94% 94% 76% 67%

System Able to Record Outages at

Where do you record outages at?

Do you report using 2 ½ beta major events?

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Questions

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