Curtailments and energy imbalances can be costly for any generator, whether you are a new market entrant, such as solar PV, or an industry veteran, such as hydro. Generators used to be able to set it and forget it when it comes to scheduling and operations. There may have been a rare occurrence when the CAISO instructed your generator to curtail through an exceptional dispatch. And the occasional forced outage was inevitable, but nothing to fret over. However, more recently, generators are experiencing frequent instances of curtailment, and greater imbalance uncertainty due to the more intermittent profile of the generation fleet and higher market price volatility.