4.8 Article

C-E (curtailment - Energy share) map: An objective and quantitative measure to evaluate wind and solar curtailment

Journal

RENEWABLE & SUSTAINABLE ENERGY REVIEWS
Volume 160, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2022.112212

Keywords

Wind power; Curtailment ratio; Penetration ratio; VRE (Variable renewable energy); Photovoltaic (PV); Solar power

Funding

  1. JSPS KAKENHI [JP 20H00649]

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This paper introduces an objective and quantitative evaluation tool named the C-E map for assessing and comparing curtailment situations in different countries. The C-E map can draw historical trend curves, aiding historical and international comparisons, as well as classify countries/areas based on their situations.
As the share of VRE (variable renewable energy) has grown rapidly, curtailment issues have arisen worldwide. This paper evaluates and compares curtailment situations in selected countries using an objective and 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.

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