Regenerative energetic fuel-cell system and process for controlling and managing such system

A fuel-cell energetic system (1) is disclosed, comprising at least one pile (15) with fuel cells, means for supplying hydrogen (9), water (10) and air (11) to the pile (15), means for expelling reaction products (17), means for producing hydrogen (3) and controlling and managing means (19); a process for controlling and managing an energetic system (1) is further disclosed.