The role of Rare Earth Elements in the deployment of wind energy in Colombia
DOI:
https://doi.org/10.32685/0120-1425/bol.geol.48.2.2021.552Keywords:
Renewable energy technologies, mineral demand, climate change mitigation, Dysprosium, Neodymium
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Abstract
The deployment of renewable energy technologies will play a crucial role in the global transition to a low-carbon economy and ultimately in the fight against global warming. However, this transition could face important problems because most of those technologies rely on the steady supply of critical minerals. Colombia, thanks to its hydrological resources, has relied on the hydropower for electricity generation. However, the government has implemented measures to back-up the energy system in draught periods and, consequently, fossil fuels-based plants have increased the market share and with these, CO2 emissions. This study assesses the mineral demand in Colombia in the period 2020-2050 for the rare earth elements embedded in the deployment of wind power technologies in four different climate policy scenarios in order to establish whether they could face geological bottlenecks that could ultimately hamper the transition to a low-carbon economy. The Gigawatts (GW) of future capacity additions in the energy system are converted into tons of metal using published metal intensities of use and assumptions of Colombia’s technological pathway. Then, the cumulated mineral demand is compared against current mining production rates and geological reserves to establish geological bottlenecks. The results show that the reserves will not pose any threat to its transition. However, when compared to current mining rates, the mineral demand in 2050 could pose a problem for the supply of minerals. Finally, this study gives some policy recommendations that could be used to mitigate these issues, such as substitution, improved circular economy and sound technological choices.
Author Biography
Carlos Andrés Gallego, Servicio Geológico Colombiano, Dirección de Recursos Minerales, Bogotá, Colombia
Geologist from the Universidad de Caldas and MBA from the Technische Universität Bergakademie Freiberg, in Germany. He has worked in the mineral exploration industry in Colombia and Latin America and since 2020 is working in Servicio Geológico Colombiano on the Areas of Mineral Interest project.
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