Géothermie avancée

The document examines advanced geothermal energy, categorizing it as a 'risky bet' due to high capital costs and unproven large-scale reliability, despite its potential to provide carbon-neutral, dispatchable power and heat globally. It highlights three primary technologies: advanced geothermal (using hydraulic fracturing), closed-loop systems, and deep geothermal. While companies like Calgary-based Eavor Technologies and Fervo Energy are launching commercial projects in Germany and the US, the technology must significantly reduce costs—potentially by 90% by 2035 according to US Department of Energy goals—to compete with gas and nuclear power.

• Advanced geothermal energy is currently classified as a 'risky bet' because its ability to compete with nuclear, gas, and hydroelectric power as an affordable and clean dispatchable energy source remains unproven, and many uncertainties persist regarding its reliability and performance.
• There are three primary advanced geothermal technologies nearing commercialization: advanced geothermal, which employs hydraulic fracturing from the oil industry; closed-loop geothermal, which circulates liquid through a closed network of pipes; and deep geothermal, which involves drilling several kilometers deeper than current methods to reach superheated energy pockets.
• Significant cost reductions are necessary for viability; while costs fell by 22% between 2021 and 2022, the US Department of Energy's 'Earthshots' initiative aims to reduce the cost of systems like Fervo's by 90% by 2035, dropping from $450 per megawatt to $45 per megawatt.
• Canada has a strategic opportunity to lead in this sector through companies like Calgary-based Eavor Technologies, which has received $90 million from the Canada Growth Fund and is developing a commercial plant in Germany designed to provide 64 megawatts of heat and 8 megawatts of electricity.

APA

Turner, C. (2024). Géothermie avancée. Canadian Climate Institute. https://institutclimatique.ca/valeurs-sures-paris-risques/geothermie-avancee/

Chicago

Turner, Chris. Géothermie avancée. Canadian Climate Institute, 2024. https://institutclimatique.ca/valeurs-sures-paris-risques/geothermie-avancee/.

Wikipedia

{{cite report |last1=Turner |first1=Chris |title=Géothermie avancée |publisher=Canadian Climate Institute |date=3 December 2024 |url=https://institutclimatique.ca/valeurs-sures-paris-risques/geothermie-avancee/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{turner2024gothermie, author = {Turner, Chris}, title = {{Géothermie avancée}}, institution = {Canadian Climate Institute}, year = {2024}, month = dec, url = {https://institutclimatique.ca/valeurs-sures-paris-risques/geothermie-avancee/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }