2017 epri general reliability survey preliminary...

© 2017 Electric Power Research Institute, Inc. All rights reserved.

2017 EPRI General Reliability Survey

Preliminary Results

Sal MartinoEPRI - Technical Leader

IEEE PES GM 2017

July 18, 2017Chicago, IL

2© 2017 Electric Power Research Institute, Inc. All rights reserved.

2017 Reliability Survey Preliminary Results

Information contained in this presentation is to be considered as an observation on a sample set of utilities in the industry and not a representation of the industry as a whole.

All results contained in this presentation are results of preliminary analysis.

These are not the final results and information presented is subject to change as analysis is currently ongoing.



Holding Company4

Operating Company

37

Holding or Operating Company?

IOU33

Muni2

Co-Op6

Municipal, Cooperative, or Investor-Owned?


Reliability and Resiliency Practices (P180.008)2017 Reliability Survey Preliminary Results



35

25

19

14

109

7

5kV to 15kV Wye < 5kV Wye 15kV to 25kV Wye 25kV to 35kV Wye > 35kV Wye < 5kV Delta 5kV to 15kV Delta0

5

10

15

20

25

30

35

40

Distribution Voltages(Number of Companies)



30

2523

2

5

23

1014

15

117

21

0

5

10

15

20

25

30

35

40

45

SAIFI SAIDI CAIDI CEMIx MAIFI CAIFI Other

What metrics does your company track and report?Regulatory Requirement Only Internal Reporting



37

23

15

6

2 2

0 0

27

14

6

01 1

0 0

SAIDI SAIFI CAIDI CEMIx MAIFI Other CAIFI SAIDETx0

5

10

15

20

25

30

35

40

What metrics does your company have performance targets/corporate reliability goals for?

Performance Target/Corporate Goal Associated with Employee Incentive



28

17

5 4

3

10

18

16

4

2

01

0

IEEE 2.5 Betamethod

Other > % of customersinterrupted for 24

hours

“Named” storm SAIDI Outage over 24hours and crews

needed fromanother district

We do not excludemajor events

0

5

10

15

20

25

30

Major Storm Exclusion CriteriaInternal Exclusion External Exclusion



61.0%

24.4%

14.6%

9.8%

4.9%

No Yes, other Yes, $/customer minutesaved

Yes, $/avoided customerinterruption

Yes, $/kVA-Hr0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

Does your company have a formal metric for ranking reliability initiatives?(check all that apply)



No75.0%

Yes25.0%

Do you perform targeted hardening of circuits?



48.78%

34.15%

17.07%14.63%

12.20%

Stronger poles Other (please specify)

Shorter spans Larger conductors Changes in calculations(NESC extreme wind for

example)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

Have you changed construction designs for system hardening?(Overall Percentage)



85.37%

80.49%

73.17%

70.73%

51.22%

51.22%

46.34%

46.34%

43.90%

41.46%

39.02%

29.27%

29.27%

26.83%

24.39%

2.44%

Wildlife protection

Proactive conductor/cable replacement

Tap fusing

Reclosers on radial circuits

Sectionalizing to add circuit tie points

Fault indicators

Construction audits

Porcelain cutout replacement

Porcelain cutout inspection

Additional grounding and/or lightning arresters

Reclosers in auto-loop with DSCADA

External fuses on completely self-protected (CSP) transformers

Use of remote reporting fault current indicators (FCIs)

Reclosers in auto-loop configuration

Fusing completely self-protected transformers

Other (please specify below)

0.00% 10.00% 20.00% 30.00% 40.00% 50.00% 60.00% 70.00% 80.00% 90.00%

New Construction or Retrofit Activities



58.54%56.10%

51.22%

31.71%29.27%

19.51%

Mobile data terminals invehicles

Temporary repairs Troubleman/Lineworkertakes truck home

Utilize two-shiftoperation for line crews

Small line shop inremote areas

Other (please specify)0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

What initiatives have you taken to reduce outage duration?(check all that apply)



87.8%

63.4%

48.8%

26.8%

19.5%

17.1%

Provide information to the crews on the location of the outage or device

Receive restoration information from the response crews

Input outage and restoration data

Receive automated outage reports from meters, reclosers, breakers, orremotely read faulted circuit indicators

Provide switching alternatives to expedite restoration

Other (please comment)

0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0%

How does your company use mobile computing platforms?



Yes31.7%

No68.3%

Does your company consider distributed generation or emergency generation as possible reliability improvement investments?


For more information

Sal [email protected] 704-595-2832


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