Transmission Ten-Year Development Plan 2011-2020 - Eskom

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28 The northern part of the Polokwane CLN is mainly rural with a massive electrification programme and has two radial 275kV lines from Witkop supplying Tabor and Spencer substations. It is proposed to establish a new MTS substation to the north of Tabor at a site yet to be determined by 2017. The projects in this scheme are as follows: • Tabor-Witkop 1st 400kV line 2012 • Tabor 400/132kV substation (1x 500MVA transformer) 2012 • Nzhelele 400/132kV substation north of Tabor 2016 • Tabor-Nzhelele 1st 400kV line 2017 • Medupi-Nzhelele 1st 400kV line 2017 6.3.5 LOWVELD CLN The Lowveld CLN consists of Leseding, Foskor and Acornhoek MTS in the Steelpoort and Phalaborwa areas. Platinum group metals and rural electrification loads dominate this CLN. • 3rd Foskor 275/132kV 250MVA 275/132kV transformation 2014 • New Acornhoek 2x 125MVA transformers 2014 • 2nd Merensky-Foskor 275kV 150km line 2016 A network diagram showing the major projects in the North Grid is shown in Figure 7-3-1 below. The HVDC lines are not indicated but they will run parallel to the two 765kV routes until the Selemo substation where they will by-pass and head into the Central and Eastern Grids. Figure 6.6: North Grid geographical network diagram Transmission Ten-Year Plan 2011-2020
6.4 NORTH EAST GRID The North East Grid consists of four CLNs namely, Highveld North, Highveld South, Lowveld (southern part), and Pretoria. The current transmission network and CLNs are shown in Figure 6 7 below. Figure 6.7: Current North East Grid network and CLNs The expected peak demands by 2016 and 2020 the as well as the average percentage load increase for the period for each CLN are given in Table 6-7 below. CLN Peak Load (MW) 2009 Forecasted Load (MW) 2016 2020 Table 6.7: North East Grid CLN load forecast and percentage load increases Ave. Annual % Load Increase Highveld North 2521 2808 2982 1.54% Highveld South 1052 1900 2440 8.61% Lowveld 1456 2099 2315 4.39% Pretoria 2326 3107 3701 4.32% © Eskom 2011 29
Page 1 and 2: Public Version Transmission Ten-Yea
Page 3 and 4: Disclaimer The purpose of publishin
Page 5 and 6: Table of Contents FOREWORD BY DIVIS
Page 7 and 8: LIST OF TABLES Table 4.1: Connectio
Page 9 and 10: 1. Introduction 1.1 CONTEXT OF THE
Page 11 and 12: Figure 2.1: The Eskom Transmission
Page 13 and 14: of 100MW which represent a cumulati
Page 15 and 16: Potential imported power projects w
Page 17 and 18: 3.2 GENERATION ASSUMPTIONS The majo
Page 19 and 20: 5. National Overview The map in Fig
Page 21 and 22: horizon of the TDP up until 2030. T
Page 23 and 24: CLN Actual Peak Load 2009 (MW) Fore
Page 25 and 26: Johannesburg East Strengthening con
Page 27 and 28: 6.1.4 VAAL CN This CLN consists of
Page 29 and 30: The increase in transmission assets
Page 31 and 32: Figure 6.4: East Grid geographical
Page 33 and 34: The Northern Grid load growth is ma
Page 35: 6.3.2 RUSTENBURG CLN Rustenburg CLN
Page 39 and 40: Highveld North Reinforcement • Ro
Page 41 and 42: A network diagram showing the major
Page 43 and 44: The next stage of the reinforcement
Page 45 and 46: A network diagram showing the major
Page 47 and 48: The TDP schemes for the South Grid
Page 49 and 50: 6.6.3 KAROO CLN For the current net
Page 51 and 52: 6.7 WEST GRID The West Grid consist
Page 53 and 54: Cape Corridor 765kV - Phase 4 • C
Page 55 and 56: A diagram showing the major project
Page 57 and 58: Type Total R’mil Customer 6,100 G
Page 59 and 60: Appendix A: Generation Assumptions
Page 61 and 62: APPENDIX B3A: COSTING FOR CENTRAL G
Page 63 and 64: APPENDIX B3C: COSTING FOR WEST GRID
Page 65 and 66: APPENDIX B3E: COSTING FOR NORTH-EAS
Page 67 and 68: APPENDIX B3G: COSTING FOR NORTH GRI
Page 69 and 70: Notes © Eskom 2011 61
Page 71 and 72: Notes © Eskom 2011 63

Transmission Ten-Year Development Plan 2011-2020 - Eskom

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