ISP NEM 2040 Model with VRE drought – will it be reliable?

The market operator’s 2024 Integrated System Plan included a renewable drought scenario. Stress testing how the energy system will cope with VRE droughts well ahead of time is an important task, and the AEC has developed an internal model to consider how the grid might perform in these circumstances. While the model is still under development and refinement it highlights some serious challenges for the grid. We take a look.