Proton exchange membrane fuel cells for electrical power generation on-board commercial airplanes

► We examine proton exchange membrane fuel cells on-board commercial airplanes. ► We model the added fuel cell system's effect on overall airplane performance. ► It is feasible to implement an on-board fuel cell system with current technology. ► Systems that maximize waste heat recovery are the best performing. ► Current PEM and H2 storage technology results in an airplane performance penalty.