Bench-scale demonstration of thermochemical energy storage using the Magnesium-Manganese-Oxide redox system

Low-cost, large-scale energy storage for 10 to 100 h is a key enabler for transitioning to a carbon neutral power grid dominated by intermittent renewable generation via wind and solar energy. High temperature thermochemical Magnesium-Manganese-Oxide (Mg-Mn-O) redox storage in conjunction with gas turbine generators has been identified as a promising candidate for grid-scale storage applications. The excellent redox cyclability of Mg-Mn-O has been demonstrated in earlier work using thermogravimetric analysis (TGA) and tube furnace experiments.