Dynamic (Mis)allocation of Investments in Solar Energy

Nicolas Astier and Nicolas Hatem ()
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Nicolas Hatem: PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, ENGIE

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Abstract: Because they differ in terms of technology, size and location, solar photovoltaic installations exhibit very heterogeneous levelized costs of producing electricity. Therefore, the present value cost of meeting a given trajectory of annual solar energy production depends on which projects are commissioned when: the observed sequence of investment decisions need not be cost-efficient. We propose a methodology to assess dynamic misallocation by comparing the present value cost of realized investments to a counterfactual optimal sequence of investments. Applying our methodology to France between 2005 and 2021, we find that the observed trajectory of annual solar production could have been obtained at a present value cost almost 30% lower than its realized value. Our optimized counterfactual suggests that investments in residential solar should have on average been postponed by 7 years, while investments in medium and large-scale installations should have occurred 2 to 4 years earlier.

Keywords: solar photovoltaic; renewable energy; renewable policies; misallocation; cost efficiency (search for similar items in EconPapers)
Date: 2023-12-04
Note: View the original document on HAL open archive server: https://pse.hal.science/hal-04320497v1
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