FEEM working papers "Note di lavoro" series
2015 .109

Including System Integration of Variable Renewable Energies in a Constant Elasticity of Substitution Framework: the Case of the WITCH Model


Authors: Samuel Carrara, Giacomo Marangoni
Publisher: Climate Change and Sustainable Development
Editor: Carlo Carraro
Type: Journal
Keywords: Variable Renewable Energies, System Integration, Electrical Grid, Constant Elasticity of Substitution, Integrated Assessment Models
JEL n.: Q4, Q41, Q42
JEL: Energy Economics
Date: 08/2016

Abstract

The penetration of Variable Renewable Energies (VREs) in the electricity mix poses serious challenges in terms of management of the electrical grids, as the associated variability and non-dispatchability are in contrast with the requirement that the load be instantaneously equalized by the generation. One of the goals of Integrated Assessment Models (IAMs) is to simulate the evolution of electricity demand and generation mix over time, therefore a proper modeling of VRE system integration is crucial. In this paper we discuss how different modeling mechanisms can profoundly impact the evolution of the electricity mix, and specifically renewable penetration. In particular, we focus on the effects of introducing a set of explicit system integration constraints in a model, WITCH, characterized by a Constant Elasticity of Substitution (CES) framework.

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Suggested citation: Samuel Carrara, Giacomo Marangoni, Including system integration of variable renewable energies in a constant elasticity of substitution framework: The case of the WITCH model, Energy Economics, Available online 21 August 2016, ISSN 0140-9883, http://dx.doi.org/10.1016/j.eneco.2016.08.017
 

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