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Investment and upgrade in distributed generation under uncertainty

Abstract : The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find that the microgrid prefers a direct investment strategy for low levels of volatility and a sequential one for higher levels of volatility.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00798933
Contributeur : Jordane Raisin-Dadre <>
Soumis le : lundi 11 mars 2013 - 11:03:25
Dernière modification le : jeudi 24 septembre 2020 - 16:58:02

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Azfal S. Siddiqui, Karl Maribu. Investment and upgrade in distributed generation under uncertainty. Energy Economics, Elsevier, 2009, 31 (1), pp.25-37. ⟨10.1016/j.eneco.2008.08.007⟩. ⟨hal-00798933⟩

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