Solar Heat for Commodity Production: Mapping and Comparison With Fossil Fuel and PV

Gkiokchan Moumin; Riccardo Cuneo; Nicole Carina Neumann

Authors

Gkiokchan Moumin Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
Riccardo Cuneo Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
Nicole Carina Neumann Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)

Keywords:

CST, LCOH, SHIP

Abstract

A systematic assessment of concentrated solar thermal (CST) energy and its levelized cost of heat (LCOH) is essential to demonstrate the global potential of CST-energy for decarbonizing industrial heat demand – especially, since time is running out to tackle climate change and a significant part of industrial heat demand can be covered with CST as solar heat for industrial processes (SHIP). For this study, CST-LCOH in dependence of the DNI (direct normal irradiance) are obtained from literature as the annual energy yield changes with DNI and thus, the LCOH changes accordingly. These are mapped for Spain and compared locally with fossil fuel- as well as PV-based heat. A sensitivity analysis is performed for CST-LCOH, varying it by ±10 %, and including an implementation of CO2-taxes of 0, 50 and 100 €/t CO₂ for the fossil fuels coal and natural gas. In all cases, if a renewable source is cheaper than fossil fuels, it is overwhelmingly CST. The margin for CST-energy, obtained as the difference of fossil fuel price with CST-LCOH, divided by CST-LCOH and which can also be interpreted as the relative margin from CST-LCOH to -price, reaches in the extreme case 139 % for fossil fuel prices in 2022 and a CO₂-tax of 100 €/t CO₂.

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Solar Heat for Commodity Production: Mapping and Comparison With Fossil Fuel and PV

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