H2-GPU prototype for demonstrations

Activities performed to develop a hydrogen fuel cell powered GPU based on a battery or diesel GPU base. Included will be key design and exploitation aspects such as: operational profile for the H-GPU, service for a typical day and develop hybrid power design, form factor/space limitations, integration strategy, hybrid hydrogen + battery power solution design choices, general arrangement of components in the available spaces, hydrogen system sizing, Integration design, and factory and commissioning testing activities performed. (Linked to tasks 4.2 and 4.3)(Linked to tasks 4.2 and 4.3)