re aluminum plant: https://www.greentechmedia.com/articles/read/german-firm-turns-aluminum-smelter-into-huge-battery https://www.greentechmedia.com/articles/rea

re aluminum plant: https://www.greentechmedia.com/articles/read/german-firm-turns-aluminum-smelter-into-huge-battery https://www.greentechmedia.com/articles/read/german-firm-tur...