1. D I S T R I B U T I O N P A C I F I C O R P 1 Utah Service Quality Review Group Benchmarking at PacifiCorp February 22, 2006

2. D I S T R I B U T I O N P A C I F I C O R P 2 Performance Comparisons  ePerformance  PA Consulting  Within PacifiCorp  IEEE Distribution Reliability  Other benchmarks Benchmarking requires:  Identifying how data is derived  Comparing types of systems  Looking for other explanatory variables  Determining differences in practices that may lead to different results  Identifying opportunities for utilizing other practices to improve performance

3. D I S T R I B U T I O N P A C I F I C O R P System Characteristics ePerformance

4. D I S T R I B U T I O N P A C I F I C O R P 4 System Characteristics

5. D I S T R I B U T I O N P A C I F I C O R P 5 System Characteristics, cont’d.

6. D I S T R I B U T I O N P A C I F I C O R P 6 Outage Metrics

7. D I S T R I B U T I O N P A C I F I C O R P 7 Merger Commitment Targets & Results

8. D I S T R I B U T I O N P A C I F I C O R P PA Consulting Benchmarking Results

9. D I S T R I B U T I O N P A C I F I C O R P 9 Entergy Services TXU ED CenterPoint Exelon- ComEd BG&E DTE Exelon- PECO PSE&G EPCOR WE Energies NWE-SD SCE PA Consulting – T&D Benchmarking Study 2005 (for Calendar 2004) Participants KCPL HydroOne NWE-MT Hydro Quebec International Eskom LG&E BC Hydro PHI PHI-PEPCO PHI-Delmarva PHI-Altantic Altalink METC ITC OPPD XCEL-MN (2) XCEL-CO (2) Pacificorp NYSEG Westar RG&E ATC El Paso NWE IPL

10. D I S T R I B U T I O N P A C I F I C O R P 10 PA Benchmarking Characteristics Distribution Line Characteristic: N=MedianPacifiCorpUtah Distribution Customer/Square Mile358611.819.9 kWH Transmitted /Total Customers38 29,571 34,434 35,771 New Distribution Line Growth Rate201.63%1.60%1.04% % Commercial and Industrial Customers3411.70%14.40%11.14% % Underground Distribution Circuit Miles2926.90%24.68%38% Trees/Overhead Pole Mile1610615698 Trees/Overhead Distribution Circuit Mile2210111981 Average Wage Rate252933 Sparsity (Circuit Miles/100 Customers)312.73.52.7 % New Miles Underground2168.60%88.60%55.6% Streetlights/Circuit Mile224.12.31.75 % Underground Concrete-encased Duct2113%1%0%

11. D I S T R I B U T I O N P A C I F I C O R P 11 SAIDI: Overall Outage Duration PC

12. D I S T R I B U T I O N P A C I F I C O R P 12 SAIFI: Outage Frequency PC

13. D I S T R I B U T I O N P A C I F I C O R P 13 CAIDI: Outage Responsiveness PC

14. D I S T R I B U T I O N P A C I F I C O R P Florida Power & Light Benchmarking Results

15. D I S T R I B U T I O N P A C I F I C O R P 15 PC FPL Benchmark Results: Calendar 2004 w/ Major Events PC

16. D I S T R I B U T I O N P A C I F I C O R P 16 FPL Benchmark Results: Calendar 2004 w/out Major Events PC

17. D I S T R I B U T I O N P A C I F I C O R P IEEE Benchmarking Results

18. D I S T R I B U T I O N P A C I F I C O R P 18 IEEE Reliability Benchmark w105 Companies have responded at some time w2004 Survey w78 responded in 2004 w56 provided details w40 were same as 2003 respondents PacifiCorp 172.89315.731.682.25102.66140.26

19. D I S T R I B U T I O N P A C I F I C O R P 19 Questions

20. D I S T R I B U T I O N P A C I F I C O R P 20 Appendix

21. D I S T R I B U T I O N P A C I F I C O R P 21 Outage Metrics by State State IEEE 1366- 2001CAIDICAIFISAIDISAIFIMAIFI Major Storm defined State-set Benchmark s & Performanc e StandardsComments Alabama No Standards Alaska xxMinimum for Voltage Arizona No Standards ArkansasxX xxx Colorado x xX X x Connecticut No Response Delaware x xx Get Update Florida x xX x xTrial Standards Georgia No Standards Hawaii No Standards Illinoisxxx x xx Indiana xxx Utility set Iowa x Get Update Kansasxx xx xx Kentucky xxxxx Utility set

22. D I S T R I B U T I O N P A C I F I C O R P 22 State IEEE 1366- 2001CAIDICAIFISAIDISAIFIMAIFI Major Storm defined State-set Benchmarks & Performance StandardsComments Louisiana xx x MaineXx x x MarylandXx xx x Utility set MassachusettsX xx xxSee DTE Website Michigan Reporting Minnesota xx Utility Specific Mississippi No Response Missouri x x x Utility set Montana No Standards Nebraska No Standards Nevada xxxx New Hampshire No Response New Jersey No Response New Mexico No Response New YorkXxxx xx Outage Metrics by State

23. D I S T R I B U T I O N P A C I F I C O R P 23 Outage Metrics State State IEEE 1366- 2001CAIDICAIFISAIDISAIFIMAIFI Major Storm defined State-set Benchmarks & Performance StandardsComments North Carolina No Standards North Dakota No Standards Ohio x xxx Oklahoma x Filings in July 2004 PennsylvaniaXx xxxx Rhode Island No Response South Carolina No Response South Dakota No Standards Tennessee No Standards TexasX xx Vermont x x VirginiaX xx Utility set Washington DCXx xx x West Virginia No Standards Wisconsin x xx

24. D I S T R I B U T I O N P A C I F I C O R P 24 Average Retail Rates by State

25. D I S T R I B U T I O N P A C I F I C O R P 25 Utah Power Rates vs. Western Utilities