November 7, 2019
The National Electricity Market, or NEM, is the electricity interconnection on the east coast of Australia. Ongoing growth of Variable Energy Resources (VERs) such as wind and PV has required a range of adaptations in both system operation and modelling, and is increasingly challenging the wholesale market design. NEM demand ranges from 15-35 GW, and annual energy is approximately 200 TWh. Table 1 shows the capacity and energy mix. [caption id="attachment_5569" align="aligncenter" width="390"] Table 1 – NEM generation capacity and energy mix[/caption] However this doesn’t tell the whole story. VERs are unevenly spread across the 3000 mile long interconnection, and some of the interconnected sub-regions that form the NEM are already…
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