EEI S.p.A. is an Italian technology company specializing in advanced power electronics and energy solutions. In the hydrogen and fuel-cell sector, EEI develops and supplies power conversion and grid connection systems that enable fuel cells to efficiently convert hydrogen into usable electrical energy. Their modular DC/DC and AC/DC converters help integrate low-voltage fuel cell output with higher-voltage electrical grids, supporting clean distributed energy generation and reducing CO₂ emissions by using hydrogen as a clean, storable energy source