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Annual Planning Report 2016

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Annual Planning Report 2016 Annual Planning Report 2016 Version 1.0 Date: 23 December 2016 DISCLAIMER This document is the responsibility of the Asset Strategy Branch within ActewAGL Distribution (ABN 76 670 568 688) (ActewAGL). This report is prepared and made solely for generating internal and external information belonging to ActewAGL acting in its capacity as a Transmission Network Service Provider and Distribution Network Service Provider in the Australian Capital Territory. This report may or may not contain all available information on the subject matter this document purports to address. This report contains certain predictions, estimates and statements that reflect various assumptions. Those assumptions may or may not prove correct, may change over time and depend upon a range of factors that are outside the control of ActewAGL. The information contained in this document is subject to review and ActewAGL may amend this document at any time. Amendments will be indicated in the Version Control Table. ActewAGL does not undertake to keep this document up to date. To the maximum extent permitted by law, ActewAGL makes no representation or warranty (express or implied) as to the quality, currency, accuracy, reliability, or completeness of the information contained in this document, or its suitability for any intended purpose. Persons reading or accessing this report acknowledge and accept that ActewAGL (which, for the purposes of this disclaimer, is a reference to the ActewAGL Distribution partnership, the individual partners and their parent companies and includes all of its related bodies corporate, its officers, employees, contractors, agents and consultants, and those of its individual partners, their parent companies and related bodies corporate) shall have no liability (including liability to any person by reason of negligence or negligent misstatement) for any statements, opinions, information or matter (expressed or implied) arising out of, contained in, or derived from, or for any omissions from, the information in this report. Persons accessing this report should conduct their own inquiries to independently verify and check the quality, currency, accuracy, completeness, reliability and suitability of the information that this report contains and any reports or other information identified as having been used to prepare this report. REVIEW DATE This document may not be reviewed once published, but will be replaced with the 2017 version by 31 December 2017. Actew AGL Annual Planning Report 2016 ActewAGL Distribution 1 Table of Contents Version Control ..................................................................................... 5 Statement of Purpose ........................................................................... 6 Executive Summary .............................................................................. 7 1. Introduction .................................................................................. 8 1.1. About ActewAGL .......................................................................................................................... 8 1.2. ActewAGL’s operating conditions ................................................................................................ 9 1.3. ActewAGL’s function .................................................................................................................... 9 1.4. Purpose of this document .......................................................................................................... 10 1.5. Audience .................................................................................................................................... 10 1.6. Planning horizon of the APR ...................................................................................................... 10 1.7. What has changed since 2015 ................................................................................................... 10 1.8. Overview of this document ......................................................................................................... 11 1.9. Feedback and enquiries ............................................................................................................. 12 2. Planning Considerations ........................................................... 13 2.1 The regulatory framework & operating environment .................................................................. 13 2.1.1 National Electricity Rules ............................................................................................................... 13 2.1.2 Electricity Distribution Supply Standards Code ............................................................................. 13 2.1.3 Electricity Transmission Supply Code ........................................................................................... 14 2.1.4 Regulatory Investment Test .......................................................................................................... 14 2.1.5 Revenue Determination ................................................................................................................. 14 2.1.6 Service Target Performance Incentive Scheme ............................................................................ 14 2.1.7 Capital Expenditure Sharing Scheme ........................................................................................... 15 2.2 ActewAGL integrated planning ................................................. 16 2.2.1 Integrated planning strategies - Asset Management, Network Development & Network Reliability. ............................................................................................................................................ 16 2.2.2. Asset Management Strategy ............................................................................................. 16 2.2.3. Network Development Strategy ........................................................................................ 17 2.2.4. Network Reliability Strategy .............................................................................................. 17 2.3. Customer Connections ............................................................................................................... 18 2.4. Stakeholder Engagement ........................................................................................................... 18 3. The ActewAGL Network ............................................................. 19 3.1. Overview of the network ............................................................................................................. 19 3.2. Characteristics of the ActewAGL network .................................................................................. 19 3.3. Transmission/Distribution system .............................................................................................. 21 3.4. Planning Philosophy ................................................................................................................... 25 3.4.1 Deterministic versus probabilistic planning approaches ............................................................ 27 4. Network Performance ................................................................ 29 4.1. Introduction ................................................................................................................................. 29 Actew AGL Annual Planning Report 2016 ActewAGL Distribution 2 4.2. System reliability and performance metrics ............................................................................... 29 4.3. System constraints and security ................................................................................................ 32 4.4. Significant system events ........................................................................................................... 33 4.5. Photovoltaic penetration ............................................................................................................. 33 4.6. Ageing assets ............................................................................................................................. 34 4.8 Power quality .............................................................................................................................. 40 4.8.1 Steady State Voltage ................................................................................................................. 41 4.8.2 Rapid Fluctuations in Voltage (Flicker) ...................................................................................... 41 4.8.3 Voltage Dips ............................................................................................................................... 42 4.8.4 Switching Voltage Transients .................................................................................................... 42 4.8.5 Voltage Difference Neutral to Earth ........................................................................................... 42 4.8.6 Earth Potential Rise ................................................................................................................... 42 4.8.7 Voltage Unbalance .................................................................................................................... 43 4.8.8 Direct Current (DC) Component ................................................................................................ 43 4.8.9 Harmonics .................................................................................................................................
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