Article: Numerical analysis of a hybrid thermal energy storage system using thermochemical and phase change material for constant, low temperature applications Journal: International Journal of Exergy (IJEX) 2021 Vol. 345 - 360 Abstract: A novel. . Long duration energy storage (LDES) plays a crucial role in enabling the world to harness renewable energy efficiently. Electrochemical energy storage technologies have been deployed at ever greater capacities but is often hampered by high cost and limited mineral resources.