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Extreme Value Theory for Heavy-Tails in Electricity Prices

Paraschiv, Florentina; Hadzi-Mishev, Risto; Keles, Dogan

Abstract:
Typical characteristics of electricity day-ahead prices at the European Power Exchange (EPEX) are very high volatility and a large number of extreme price changes. In this paper, we look at hourly spot prices at the German electricity market and apply extreme value theory (EVT) to investigate the tails of the price change distribution. Our results show the importance of delimiting price spikes and modeling them separately from the core of the price distribution. In particular, we get a realistic fit of the generalized Pareto distribution (GPD) to autoregressive-generalized autoregressive conditional heteroscedasticity (AR-GARCH) filtered price change series; based on this model, accurate forecasts of extreme price quantiles are obtained. Generally, our results suggest that EVT is of interest for both risk managers and portfolio managers in the highly volatile electricity market.


Zugehörige Institution(en) am KIT Institut für Industriebetriebslehre und Industrielle Produktion (IIP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.21314/JEM.2016.141
ISSN: 1756-3607, 1756-3615
KITopen ID: 1000065905
Erschienen in The journal of energy markets
Band 9
Heft 2
Seiten 21-50
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