Authors: Yoh Yasuda, Lori Bird, Enrico Maria Carlini, Peter Børre Eriksen, Ana Estanqueiro, Damian Flynn, Daniel Fraile, Emilio Gómez Lázaro, Sergio Martín-Martínez, Daisuke Hayashi, Hannele Holttinen, Debra Lew, John McCam, Nickie Menemenlis, Raul Miranda, Antje Orths, J. Charles Smith, Emanuele Taibi, Til Kristian Vrana
Abstract: As the share of VRE (variable renewable energy) has grown rapidly, (opens in a new window)curtailment issues have arisen worldwide. This paper evaluates and compares curtailment situations in selected countries using an objective and (opens in a new window)quantitative evaluation tool named the “C-E map” (curtailment-energy share map). The C-E map is a correlation map between curtailment ratios that mean curtailed wind (or solar) energy per available energy and energy shares of wind (or solar). The C-E map can draw a historical trend curve in a given country/area, as an at-a-glance tool to enable historical and/or international comparison. The C-E map also can classify the given countries/areas into several categories, according to the current levels of curtailment ratio and historical trends. The C-E map helps institutional and objective understanding of curtailment for non-experts including policy makers.
