Extremes of Energy Systems : David Brayshaw
From Belle Taylor
This talk has been automatically captioned. You can remove these by pressing CC on the video toolbar.Name: David Brayshaw
Title: Weather and climate risk in power systems with renewables
Abstract: The growing use of weather-dependent renewable power is changing the way electricity systems operate. The traditional paradigm where large power plants are managed to meet variations in electricity demand is being replaced by a situation in which both demand and supply are strongly influenced by weather. This has profound consequences for power systems where supply-demand balance must be maintained in real time and the need for high-quality meteorological information – particularly regarding extreme events - has never been greater. Recent developments in weather and climate science offer opportunities for addressing power system risk but also raise new challenges for how we understand, model and quantify meteorological impacts in systems as complex as electricity networks. This talk will review some of the challenges associated in power system planning and operations from a meteorological perspective, particularly focussing on the tension between computational tractability and the robust characterisation of weather and climate variability. The role of extreme weather events and climate variations in determining optimal power system design and operation will be discussed and, specifically, the challenges associated with ensuring adequate climate-sampling highlighted. Recent results from a novel implementation of “Importance Subsampling” are presented as a potential solution.
This talk is an invited talk at EVA 2021.