A Real Options Approach to Determine the Optimal Choice Between Lifetime Extension and Repowering of Wind Turbines

Chris Stetter (), Maximilian Heumann (), Martin Westbomke (), Malte Stonis () and Michael Breitner ()
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Chris Stetter: Leibniz University Hannover
Maximilian Heumann: Leibniz University Hannover
Martin Westbomke: Institut für Integrierte Produktion Hannover gGmbH
Malte Stonis: Institut für Integrierte Produktion Hannover gGmbH

A chapter in Operations Research Proceedings 2019, 2020, pp 291-297 from Springer

Abstract: Abstract The imminent end-of-funding for an enormous number of wind energy turbines in Germany until 2025 is confronting affected operators with the challenge of deciding whether to further extend the lifetime of old turbines or to repower and replace it with new and more efficient ones. By means of a real options approach, we combine two methods to address the question if extending the operational life of a turbine is economically viable, and if so, for how long until it is replaced by a new turbine. It may even be the case that repowering before leaving the renewable energy funding regime is more viable. The first method, which is the net present repowering value, determines whether replacing a turbine before the end of its useful life is financially worthwhile. The second method, which follows a real options approach, determines the optimal time to invest in the irreversible investment (i.e., replacing the turbine) under uncertainty. The combination allows for continuously evaluating the two options of lifetime extension and repowering in order to choose the most profitable end-of-funding strategy and timing. We finally demonstrate the relevance of our approach by applying it to an onshore wind farm in a case study.

Keywords: Real options; Net present repowering value; Onshore wind; Repowering; Lifetime extension (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1007/978-3-030-48439-2_35

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