Reliability Report -- 1999 - Pennsylvania Public Utility Commission

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SECTION 1 – INTRODUCTION Purpose This report discusses the reliability performance of electric distribution companies (“EDCs”) operating within the Commonwealth during the calendar year 2005. Although the reliability of the bulk transmission system 7 is integral to the overall reliability of electric service, this report focuses on the reliability of the electric distribution system. The information contained in this report was obtained from the annual reliability reports submitted by the EDCs pursuant to the Commission’s regulations. 8 These annual reports provide an assessment of electric service reliability for each EDC’s service territory. Background The Electricity Generation Customer Choice and Competition Act 9 (Act) became effective January 1, 1997. The Act amended Title 66 of the Pennsylvania Consolidated Statutes (“Code”) by adding Chapter 28 to establish standards and procedures to create direct access by retail customers to the competitive market for the generation of electricity, while maintaining the safety and reliability of the electric distribution system. Specifically, the Commission was given a legislative mandate to ensure that levels of reliability that existed prior to the restructuring of the electric utility industry would continue in the new competitive markets. 10 In response to this legislative mandate, the Commission adopted a Final Rulemaking Order on April 23, 1998, setting forth various reporting requirements designed to ensure the continued safety, adequacy and reliability of the generation, transmission and distribution of electricity in the Commonwealth. 11 The Final Rulemaking Order also suggested that the Commission could reevaluate its monitoring efforts at a later time as deemed appropriate. 7 The high voltage transmission system, nominally >100 kV, is regulated by the Federal Energy Regulatory Commission. The electric distribution system is under the purview of the Pennsylvania Public Utility Commission. 8 52 Pa. Code § 57.195. 9 Dec. 3, P.L. 802, No. 138 § 4. 10 66 Pa.C.S. §§ 2802(12), 2804(1) and 2807(d). 11 Docket No. L-00970120; 52 Pa. Code §§ 57.191-57.197. Electric Service Reliability in Pennsylvania 1
Subsequently, on December 16, 1999, the Commission entered a Final Order establishing reliability benchmarks and standards for the EDCs. 12 The purpose of these reliability indices is to measure the performance of EDCs’ transmission and distribution systems in terms of the frequency and duration of unplanned electric service outages to ensure that the levels of reliability existing prior to retail competition do not deteriorate. On May 7, 2004, the Commission adopted amendments to its existing regulations regarding electric reliability standards, which became effective on September 18, 2004. 13 In conjunction with the adoption of the amended regulations, the Commission adopted an Order amending its benchmarks and standards. 12 Docket No. M-00991220. 13 Docket No. L-00030161; 34 Pa.B. 5135. 2 Pennsylvania Public Utility Commission
Page 1 and 2: ElectricService Reliabilityin Penns
Page 3 and 4: EXECUTIVE SUMMARY The Electricity G
Page 5: TABLE OF CONTENTS SECTION 1 - INTRO
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 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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