Comment Comment by jessriedel For more on the general problem of storing thermal (rather than electrical) energy on a seasonal basis seehttps://en.wikipedia.org/wiki/Seasonal_thermal_energy_storag...I was especially surprised to learn that serious attempts at storing heat in soil and rock have been madehttps://en.wikipedia.org/wiki/Seasonal_thermal_energy_storag... https://en.wikipedia.org/wiki/Drake_Landing_Solar_Communitywhich in the winter is able recover >40% of the energy stored in the ground through boreholes in the summer ("BTES Efficiency")https://www.dlsc.ca/reports/swc2017-0033-Mesquita.pdf parent jessriedel 4 years ago
https://en.wikipedia.org/wiki/Seasonal_thermal_energy_storag...
I was especially surprised to learn that serious attempts at storing heat in soil and rock have been made
https://en.wikipedia.org/wiki/Seasonal_thermal_energy_storag... https://en.wikipedia.org/wiki/Drake_Landing_Solar_Community
which in the winter is able recover >40% of the energy stored in the ground through boreholes in the summer ("BTES Efficiency")
https://www.dlsc.ca/reports/swc2017-0033-Mesquita.pdf