With over 38M [1] households just in Germany that would come to: 19 million metric tons of Al.
Each year the people of this planet mine 160 million metric tons of Bauxite [2]. Not sure how the Bauxite ore related in weight to the final product.
Maybe this could be a viable option for some energy storage?
[1] https://www.statista.com/statistics/464187/households-by-siz...
[2] https://www.aluminum.org/industries/production/bauxite#:~:te....