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Non-dispatchable Generation

The video delves into how variable renewable resources, such as solar and wind, impact both large grids and microgrids in similar and distinct ways. It introduces the intriguing concept of the "duck curve" and discusses the predictability of non-dispatchable generation. In both large grids and microgrids, non-dispatchable sources affect operations when their output deviates significantly from the grid's overall size, leading to reduced efficiency and increased operational costs. However, microgrids, due to their smaller geographic area and less aggregated variable resources, experience more pronounced fluctuations in total output based on localized conditions, like cloud cover or low wind. This variability can pose unique challenges for microgrid management. The "duck curve" graphically illustrates the mismatch between electricity demand and available solar energy, emphasizing the need for energy storage solutions to shift solar power to meet evening demand, ultimately reducing grid stress.