The smoothing effect for renewable resources in an Afro-Eurasian power grid
- 1ForWind, Center for Wind Energy Research, University of Oldenburg, Oldenburg, Germany
- 2Wind Energy Department, Technical University of Denmark, Lyngby, Denmark
- 3Frankfurt Institute for Advanced Studies, Goethe University Frankfurt, Frankfurt, Germany
Abstract. Renewable power systems have to cope with highly variable generation. Increasing the spatial extent of an interconnected power transmission grid smooths the feed-in by exchange of excess energy over long distances and therefore supports renewable power integration. In this work, we investigate and quantify the balancing potential of a supergrid covering Europe, Africa and Asia. We use ten years of historical weather data to model the interplay of renewable generation and consumption and show that a pan-continental Afro-Eurasian supergrid can smooth renewable generation to a large extent and reduce the need for backup energy by around 50 %. In addition, we show that results for different weather years vary by up to approximately 50 %.