← All propulsion products

HTPEM fuel-cell system

ZeroAvia
View manufacturer company profile
Fuel cells
Fuel-cell system
High-temperature PEM fuel-cell technology under development for aerospace.
Supplier-listed; configuration and current availability require confirmation.

Specifications and conditions

Supplier reports up to 3.5 kW/kg specific power for a turbo-air-cooled modular system; measurement boundary and conditions need confirmation.

Aircraft applications

The supplier describes aviation or aircraft-system uses; an exact aircraft installation has not been independently verified.

Certification

No regulator-issued approval has been verified for this specific product and configuration. Test milestones, design targets and organisational approvals are separate from a product certificate.

Sources

ZeroAvia: HTPEM fuel-cell system source (undated); checked 28 October 2026.

Last verified

October 28, 2026