The storage system design provided by the MHSDT is only one piece of the puzzle: it computes the required size of the overall storage system based on the desorption thermodynamics, density, capacity, and thermal conductivity of the metal hydride. However, it does not simulate the dynamic operation of the storage system in conjunction with a fuel cell for vehicular operation, which depends on the kinetics of the desorption reaction (Figure and Table ) as well as the intrinsic material properties (Table ) and the fuel system design. This capability is provided by the vehicle framework model (VFM), which simulates real-time operation of a hydrogen fuel cell electric vehicle. As will be seen below, the nanoscale material can successfully complete an LDV drive cycle, but the bulk metal hydride cannot (Figure ).