Renewable process heat from solar thermal and photovoltaics: The development and application of a universal methodology to determine the more economical technology

Steven Meyers, Bastian Schmitt and Klaus Vajen

Applied Energy, 2018, vol. 212, issue C, 1537-1552

Abstract: Solar energy is an important measure to reduce fossil fuel use and carbon emissions from the energy supply in industries requiring heat below 150 °C. A robust methodology was developed to compare two solar conversion technologies (solar thermal and photovoltaics via resistance heating) to determine which provided lower cost heat, highly flexible for various plant sizes, investments, currencies, locations, and process temperatures. At current PV investments, solar thermal plants must be installed turn-key below 400 €/m2ap in northern European climates and 500 €/m2ap in southern to remain economically competitive. Photovoltaic heat is already the lower cost heat provider for many applications in northern latitudes above 100 °C. In future PV cost scenarios, solar thermal must reduce investments below 250 €/m2ap to remain competitive in Europe and 400 €/m2ap in higher solar resource regions. When opportunity costs are considered, photovoltaics are better utilized to offset local electrical, not thermal, demand. Despite this fact, future efforts must be given to solar thermal cost reduction in order to remain competitive against all other renewable heat producers.

Keywords: Solar thermal; PV; Economic; Industrial processes; Low-carbon; Renewable heat (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (9)

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DOI: 10.1016/j.apenergy.2017.12.064

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