4. Hydrogen fuel cell series hybrids

4.1 Series hybrid vehicle with full hydrogen fuel cell

These are series hybrids where the on-board generator is a fuel cell combined with a hydrogen tank. The advantage of the hydrogen fuel cell is that it generates no pollutant emissions at the point of use, makes no noise and, if the hydrogen is decarbonized, offers an attractive environmental balance.

Hydrogen fuel cell vehicles will be serial hybrids with a dual energy source (battery and hydrogen fuel cell), enabling them to recover the vehicle's inertia in the battery and increase their efficiency (see figure 22 ). The battery provides the peak power, enabling optimum sizing...