Renewable Energy from Finite Resources: Example of Emerging Photovoltaics

Authors

  • Felix Schmidt Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, CH-4132 Muttenz; Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
  • Andreas Schäffer Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
  • Markus Lenz Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, CH-4132 Muttenz; Sub-Department of Environmental Technology, Wageningen University, 6700 AA, Wageningen, the Netherlands;, Email: markus.lenz@fhnw.ch

DOI:

https://doi.org/10.2533/chimia.2019.874

Keywords:

Clean technologies, Critical raw materials, Secondary sources, Thin film photovoltaics

Abstract

Renewable energies, such as sunlight, wind and geothermal heat, are resources that are replaced rapidly by natural processes. However, wind, hydro and solar installations strictly require raw materials that are, in fact, not renewable. Many raw materials are already facing a supply shortage which cannot be easily overcome. This work reviews the problem of critical raw material (CRM) use in photovoltaics (PV) as an example and explains why supply cannot be easily increased to meet demand. We discuss whether there is indeed a 'struggle for elements' in a Darwinian sense, which ultimately leads to a 'survival of the fittest' race in renewable energy technology. In the case of PV, the perception of the definition of 'fittest' needs to change from that considering energy conversion efficiency alone to that which holistically considers net energy produced per emission under the premise that sufficient environmentally and socially acceptable raw material supply exists for renewable energies and all other sectors.

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Published

2019-11-01

How to Cite

[1]
F. Schmidt, A. Schäffer, M. Lenz, Chimia 2019, 73, 874, DOI: 10.2533/chimia.2019.874.