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Fuzzy Portfolio Optimization of Power Generation Assets

Institute for Future Energy Consumer Needs and Behavior (FCN), School of Business and Economics/E.ON Energy Research Center, RWTH Aachen University, Mathieustrasse 10, 52074 Aachen, Germany
Author to whom correspondence should be addressed.
Energies 2018, 11(11), 3043;
Received: 14 October 2018 / Revised: 28 October 2018 / Accepted: 2 November 2018 / Published: 6 November 2018
(This article belongs to the Special Issue Optimisation Models and Methods in Energy Systems)
Fuzzy theory is proposed as an alternative to the probabilistic approach for assessing portfolios of power plants, in order to capture the complex reality of decision-making processes. This paper presents different fuzzy portfolio selection models, where the rate of returns as well as the investor’s aspiration levels of portfolio return and risk are regarded as fuzzy variables. Furthermore, portfolio risk is defined as a downside risk, which is why a semi-mean-absolute deviation portfolio selection model is introduced. Finally, as an illustration, the models presented are applied to a selection of power generation mixes. The efficient portfolio results show that the fuzzy portfolio selection models with different definitions of membership functions as well as the semi-mean-absolute deviation model perform better than the standard mean-variance approach. Moreover, introducing membership functions for the description of investors’ aspiration levels for the expected return and risk shows how the knowledge of experts, and investors’ subjective opinions, can be better integrated in the decision-making process than with probabilistic approaches. View Full-Text
Keywords: portfolio analysis; semi-mean-absolute deviation model; fuzzy set theory; optimal power generation mix portfolio analysis; semi-mean-absolute deviation model; fuzzy set theory; optimal power generation mix
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MDPI and ACS Style

Glensk, B.; Madlener, R. Fuzzy Portfolio Optimization of Power Generation Assets. Energies 2018, 11, 3043.

AMA Style

Glensk B, Madlener R. Fuzzy Portfolio Optimization of Power Generation Assets. Energies. 2018; 11(11):3043.

Chicago/Turabian Style

Glensk, Barbara, and Reinhard Madlener. 2018. "Fuzzy Portfolio Optimization of Power Generation Assets" Energies 11, no. 11: 3043.

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