Transmission Ten-Year Development Plan 2011-2020 - Eskom

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50 Some of the risk mitigation measures under consideration include higher reliance on the following: utilisation of Strategic Spares, the use of Capacitors in the short term for voltage support, as well as Emergency Preparedness Plans. The economic slowdown as well as efforts to promote demand side management through the use of solar geysers, compact fluorescent lamps and encouraging saving of electricity has greatly assisted in reducing major supply constraints. The impact of the recession is, however, expected to be short term in nature, and there should be a return to prerecession demand levels and forecasts soon. Hence we believe it will be necessary to proceed with the planned infrastructure development. This Ten Year Plan has many similarities with the previous one as far as projects are concerned. At the end of the period of this Ten Year Plan, it is expected that the transmission network will be fully compliant to the reliability requirements of the Grid Code that were amended in 2008. Robust and efficient planning requires the timely exchange of credible information between stakeholders. In particular stakeholders are requested to note that spatial data and information are critical for effective transmission network planning and development. Transmission infrastructure could easily become the critical path in connecting and integrating generation due to long lead times for securing corridors. We recommend that for planning purposes, a provision of at least 7-year lead time be made for new corridors. It should also be noted that there are increasing objections from land owners to proposed power line routes through the EIA process, which may further prolong the time to implement projects. Research and feasibility studies are required on HVDC technology to ensure its availability for major corridors for coastal nuclear or Waterberg coal scenarios. In addition, recycling of certain transmission networks (especially 275kV to 400kV) in Gauteng and KwaZulu-Natal will be needed in the long term. The conclusion is that the transmission projects in this TDP will result in the overall network becoming Grid Code compliant while catering for increased load growth and integration of new generation. The system will be running at risk in some areas and careful operational mitigation planning will have to be undertaken until the transmission projects and new generation are in place. Transmission Ten-Year Plan 2011-2020
Appendix A: Generation Assumptions Generation Plant used for the TDP studies © Eskom 2011 51
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 and 36: 6.3.2 RUSTENBURG CLN Rustenburg CLN
Page 37 and 38: 6.4 NORTH EAST GRID The North East
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: Type Total R’mil Customer 6,100 G
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
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Transmission Ten-Year Development Plan 2011-2020 - Eskom

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