Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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UGI Utilities, Inc. 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 Electric Service Reliability in Pennsylvania 43
UGI Utilities, Inc. System Average Interruption Frequency Index (SAIFI) 1.2 1.0 Benchmark Rolling 12-Month Standard 0.8 Frequency 0.6 0.4 0.2 0.0 Mar-05 Jun-05 Sep-05 Dec-05 Mar-06 12 Months Ending UGI Utilities, Inc. 2005 Outage Causes Other Weather/Ice Weather/Wind Customer Minutes Interrupted Customers Affected Number of Incidents Unknown Trees Public Motor Vehicle Lightning Structure Fire Equipment Failure Customer Problem Construction Error Animal 0% 10% 20% 30% 40% 50% 60% Percent of Outages 44 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 and 14: Utility Specific Performance Data A
Page 15 and 16: As seen here, CAIDI improved from t
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: UGI Utilities, Inc. Customer Averag
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

Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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