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{{in use}}
'''Power system operations''' is a term used in [[electricity generation]] to describe the process of [[decision-making]] on the timescale from one day ('''day-ahead operation'''{{sfn|Conejo|Baringo|2017|p=9}}) to minutes{{sfn|Conejo|Baringo|2017|p=10}}
== Day-ahead operation ==
Day-ahead operation schedules the generation units that can be called upon to provide the electricity on the next day ('''unit commitment'''). The [[dispatchable generation]] units can produce electricity on demand and thus can be scheduled with accuracy. The production of the weather-dependent [[variable renewable energy]] for the next day is not certain, its sources are thus non-dispatchable. This variability, coupled with uncertain future power demand and the need to accommodate possible generation and [[electricity transmission|transmission]] failures requires scheduling of [[operating reserve]]s that are not expected to produce electricity, but can be dispatched on a very short notice.{{sfn|Conejo|Baringo|2017|p=9}}
== References ==
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