2。Project Justification ................................................................................................2-1 2.1.Introduction ..................................................................................................................... 2-1 2.2.EIS Guidelines ................................................................................................................... 2-1 2.3.Overview of the National Electricity Market ................................................................... 2-2 2.3.1.国家电力市场的运营............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 2-2 2.3.2。System connectivity ............................................................................................ 2-2 2.3.3.能源市场过渡............................................................................................................................................................................................................................................................................................................................................................................................................................... 2-5 2.3.4。South Australian context .................................................................................... 2-6 2.3.5.New South Wales context ................................................................................... 2-8 2.4.Electricity Network Planning ............................................................................................ 2-8 2.4.1.Integrated System Plan ....................................................................................... 2-8 2.4.2.New energy projects in South Australia............................................................ 2-12 2.5.Commonwealth and State Energy Policy Context ......................................................... 2-12 2.5.1.Commonwealth policies ................................................................................... 2-13 2.5.2.South Australia and New South Wales energy policies .................................... 2-14 2.6.The Need for a New Interconnector .............................................................................. 2-16 2.6.1.现有的南澳大利亚州互连............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 2-16 2.6.2。传播的监管投资测试（RIT-T）............................................................................................................................................................................................................................ 2-17 2.7。Benefits of Project EnergyConnect ................................................................................ 2-20 2.7.1.Overall economic benefits ................................................................................ 2-20 2.7.2.Benefits for the region and local communities ................................................. 2-21 2.7.3.对南澳大利亚的好处......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 2-21 2.7.4。新南威尔士州的好处......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 2-23 2.7.5。Benefits for Australia ........................................................................................ 2-24 2.7.6.Ecologically sustainable development (ESD) .................................................... 2-25 2.8.Consequences of Not Proceeding with the Project ....................................................... 2-25 2.9.Conclusion ...................................................................................................................... 2-27