Heaven FCH

HEAVEN main goal is to design, develop and integrate the worldwide first aircraft powertrain based on high power density fuel cell system and high energy density liquid hydrogen fuel system into an existing 2-4 seats aircraft for testing in flight operation.

Cryogenic liquid hydrogen storage technology will be applied to aeronautical applications for the first time worldwide. This technology improves the current energy density of pressurized H2 tanks by a factor of 2 to 5, and leads to commercially viable performances.
A pressurized fuel cell system is demonstrated to increase the power density of the system by a factor of 2 to 3 and can operate at higher temperature, leading to fewer cooling efforts needed and thus a reduction of weight, power consumption and volume of the thermal management system.
Protocols based on safety analysis, redundancy of the powertrain, auxiliary systems, tests and simulations with the final goal of a flight demonstration will provide reliability figures in support of future certification.

News and Events

D3.4 Main results of the hydrogen fuel system

This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking (now Clean Hydrogen Partnership) under Grant Agreement No 826247. This Joint Undertaking receives support from the European Union’s Horizon 2020 Research and Innovation programme,...


Partners' progress concerning the Heaven project (July 2021 – September 2022) AIR LIQUIDE During the last year, Air Liquide (ALAT) has been manufacturing the LH2 tank and its control command box which can be filled with 16 kg of LH2. After the debugging and tuning...

HEAVEN mid-term review

HEAVEN mid-term review

On September 22nd and 23rd the HEAVEN consortium was invited for its mid-term virtual review meeting where the achievements and overall progress of the first 30 months of the project were evaluated and discussed with the project officer and the two experts, reviewers,...