The Australia Institute
released 30 November 2017
Each issue of Electricity Update contains a more detailed discussion of one or two topical issues relating to the electricity system. This extended edition looks at a number of aspects of electricity supply in South Australia. These include record levels of wind generation, the effect of growing rooftop solar generation on demand for grid electricity, and the effect of both these on spot wholesale prices, which in both September and October were the lowest amongst all four mainland NEM states. We also discuss what implications the smooth, low-cost operation of the state’s electricity system throughout this period may have for the proposed National Energy Guarantee in the three larger NEM states, all of which currently have a much lower share of variable renewable generation than South Australia.