Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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Allegheny Power System Customer Average Interruption Duration Index (CAIDI) 240 220 Rolling 12-Month Standard 200 Minutes 180 Benchmark 160 140 120 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Allegheny Power System Customer Average Interruption Duration Index (CAIDI) 220 210 200 190 180 Benchmark Rolling 12-Month Standard Minutes 170 160 150 140 130 120 Mar-05 Jun-05 Sep-05 Dec-05 Mar-06 12 Months Ending Electric Service Reliability in Pennsylvania 9
As seen here, CAIDI improved from the 12 months ended March 2005 to the 12 months ended March 2006. Average CAIDI values decreased from 198 minutes to 182 minutes, which was 10.8% better than the standard. Performance remained within an acceptable range throughout 2005. The next two graphs depict trends in the frequency of service interruptions for the Allegheny system from 1994 to 2005, and for the four quarters of 2005 and the first quarter of 2006, compared to the established benchmarks and standards for SAIFI. Allegheny Power System System Average Interruption Frequency Index (SAIFI) 1.4 1.2 Rolling 12-Month Standard 1.0 Benchmark Frequency 0.8 0.6 0.4 0.2 0.0 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 10 Pennsylvania Public Utility Commission
Page 1 and 2: ElectricService Reliabilityin Penns
Page 3 and 4: EXECUTIVE SUMMARY The Electricity G
Page 5 and 6: TABLE OF CONTENTS SECTION 1 - INTRO
Page 7 and 8: Subsequently, on December 16, 1999,
Page 9 and 10: included is the data used in calcul
Page 11 and 12: the reliability performance of the
Page 13: Utility Specific Performance Data A
Page 17 and 18: Allegheny Power System 2005 Outage
Page 19 and 20: Duquesne Light Company Customer Ave
Page 21 and 22: The graph below shows the distribut
Page 23 and 24: Metropolitan Edison Company Custome
Page 25 and 26: Metropolitan Edison Company System
Page 27 and 28: the SAIFI benchmark was increased f
Page 29 and 30: The rolling 12-month averages for t
Page 31 and 32: 14.0% of total incidents, 18.5% of
Page 33 and 34: Pennsylvania Power Company Customer
Page 35 and 36: Pennsylvania Power Company System A
Page 37 and 38: In 2005, PECO’s customers experie
Page 39 and 40: PECO Energy Company System Average
Page 41 and 42: PECO Energy Company 2005 Outage Cau
Page 43 and 44: PPL Electric Utilities Corporation
Page 45 and 46: PPL’s SAIFI was below the benchma
Page 47 and 48: UGI Utilities, Inc. Customer Averag
Page 49 and 50: UGI Utilities, Inc. System Average
Page 51 and 52: determine the type of each event ex
Page 53 and 54: Citizens' Electric Company System A
Page 55 and 56: Pike County Light & Power Company P
Page 57 and 58: Pike County Light & Power Company C
Page 59 and 60: For 2003 and 2004, SAIFI has been a
Page 61 and 62: November 28, 2005: severe weather e
Page 63 and 64: Wellsboro Electric Company System A
Page 65 and 66:
SECTION 4 - INSPECTION AND MAINTENA
Page 67 and 68:
In addition to monitoring the relia
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Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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