The release of an expert study of last year’s autumn wind drought in Australia by consultancy Global Power Energy[i] this week raised some questions about the approach used by the Australian Energy Market Operator’s in its 2024 Integrated System Plan (ISP). The ISP has been subject to debate before. For example, there has previously been criticism that some of the ISP’s modelling assumes what amounts to “perfect foresight” of wind and solar output and demand[ii], rather than a series of inputs and assumptions.
The ISP is produced every two years and with the draft of the next ISP (2026) due for release soon, it is useful to consider what it is and what it is not, along with what the ISP seeks to do.
