It seems like it is an evolution (name change?) of "Heat-insyde", here is an old article with an actual photo of a small prototype: https://elements.evonik.com

It seems like it is an evolution (name change?) of "Heat-insyde", here is an old article with an actual photo of a small prototype: https://elements.evonik.com/research-and-innovation/salt-solar-heat-store/ https://elements.evonik.com/research-and-innovation/salt-sol... Those old enough (like myself) to remember the Batman TV series will appreciate how the parts of the machine sport clear labels. There is still the "other" site: https://www.heat-insyde.eu/ https://www.heat-insyde.eu/