Why Hydrogen - Hydrogen-electric flight at scale

Hydrogen-electric propulsion (HEP) brings aviation significantly closer to zero emission.

Flying is the most carbon-intensive mode of transport. The aviation sector must decarbonise by 2050 (IATA Net Zero), but no practical emission-free options exist. Other hard-to-abate sectors where batteries aren't effective, urgently need alternatives. Unlike expensive, polluting, and inefficient jet propulsion, HEP creates zero carbon dioxide, NOx, sulphates, hydrocarbons, lead, and particulates (soot). Combined, the environmental and commercial benefits position hydrogen electric-powered flight as a leading solution.

Our patent-pending fuel cell technology is 6x lighter than the current state of the art, unlocking hydrogen-electric aircraft that can fly 10x further than battery-electric alternatives and are 50% cheaper to operate than fossil fuel-powered aircraft. While our technology is optimised for commercial aircraft, our sustainable, economical, and scalable solution can also power long-range drones or operate heavy duty vehicles in harsh environments.

Comparable ranges

Unlike battery electric, HEP delivers ranges suitable for commercial, regional routes.

Fuel savings

Low fuel costs when compared to jet fuel and Sustainable Aviation Fuel (SAF) used in turbine engines.

Local fuel production

Green hydrogen can be produced onsite and locally at a range of scales.

Low maintenance cost

An estimated 60% reduction in engine maintenance costs compared to turbines.

Three reasons why Hydrogen-electric propulsion is the leading solution.

There has been a breakthrough in high-temperature PEM fuel cells.

The next-generation high-temperature PEM fuel cell (HTPEM) breakthrough will unlock useful range and system life for hydrogen-electric aircraft, just as the Lithium-Ion battery did for electric cars. This is akin to when Tesla utilised Panasonic Lithium-Ion battery cells to design the world’s best car battery pack. We are using this technology to develop the world’s lightest fuel cell system for aircraft.

Alternate sustainable flight solutions compromise on emissions, payload, range and cost.

Sustainable Aviation Fuel (SAF) is expensive and can still emit tailpipe carbon dioxide, NOx, sulphates, and particulates (soot), which presents carbon capture challenges. Hybrid systems are complex, with high costs and a minimal emission reduction of ~7% at 800 km. The electric battery range is too short, even with the latest breakthroughs of 500Wh/kg batteries.

Unlocking the most economical way to decarbonise and increase profits.

The turbocharged, next-generation high-temperature PEM fuel cell system will be 6x lighter than automotive solutions and reduces aircraft operating costs by 50%. Hydrogen-electric is the most economical way to decarbonise and increase profits. Stralis is developing in-house solutions for the hydrogen electric propulsion system control and aircraft integration.

Comparable ranges

Fuel savings

Local fuel production

Low maintenance cost

Is hydrogen-electric flight zero emission?

Many airlines use SAF as their sustainability solution; how does that compare to hydrogen?

Isn't hydrogen combustion a simpler solution than hydrogen-electric?

Will offering 15-seat sustainable aircraft have an impact on global emissions?

Is hydrogen-electric only good for short-haul flights?

Will hydrogen-electric aircraft be safe?

Do Stralis products need to run on green hydrogen, or can they run on grey hydrogen, too?

Doesn't H2 have a really poor round-trip efficiency?

IIs investing in technologies that have a greater impact on climate change more effective?

Are battery electric aircraft a better solution?