Stochastic interest rates in the analysis of energy investments: Implications on economic performance and sustainability

Athanasios Tolis, Aggelos Doukelis and Ilias Tatsiopoulos

Applied Energy, 2010, vol. 87, issue 8, 2479-2490

Abstract: A systematic impact assessment of stochastic interest and inflation rates on the analysis of energy investments is presented. A real-options algorithm has been created for this task. Constant interest rates incorporating high risk premium have been extensively used for economic calculations, within the framework of traditional direct cash flow methods, thus favouring immediate, irreversible investments in the expense of, sometimes, insubstantially low anticipated yields. In this article, not only incomes and expenses but also interest and inflation rates are considered stochastically evolving according to specific probabilistic models. The numerical experiments indicated that the stochastic interest rate forecasts fluctuate in such low levels that may signal delayed investment entry in favour of higher expected yields. The implementation of stochastically evolving interest rates in energy investment analysis may have a controversial effect on sustainability. Displacements of inefficient plants may be significantly delayed, thus prolonging high CO2 emission rates. Under the current CO2 allowance prices or their medium-term forecasts, this situation may not be improved and flexible policy interventions may be necessitated.

Keywords: Real-options; Interest; rate; Electricity; market; Stochastic; models (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (6)

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