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A quantum leap in robust propulsion development with hydrogen as a sustainable fuel

August 2020
Gallery KEYOU-inside 1
Gallery KEYOU-inside 1


This Solution comes to offer the market a sustainable drive technology that is both clean and economical – without compromising performance, range or robustness. Due to existing mature production infrastructures and no need for precious, rare or toxic materials a fast time to market at attractive prices for fleet operators is guaranteed.

The manufacturer independent KEYOU-inside kit transforms conventional engines into emission-free hydrogen combustion engines and enables OEMs to integrate zero-emission vehicles into their portfolio within a short development and implementation time of 24-36 months until mass production. They believe that this solution for transport is the best possible path forward in terms of environmental and climate protection, pace of innovation, as well as social acceptance, due to the fact that it 1. preserves current jobs, production processes and facilities, as well as mechanical maintenance structures; 2. is independent from toxic, harmful, seldom, or critical resources for production; 3. has optimised and established recycling pathways with almost 100 % recovery; 4. allows diesel-typical customer-value, e.g. a. range (80%) b. power (100%) c. refuelling time (8-10 min) d. availability (100%) and lifetime (100%) e. at economic prices.

Label Date August 31, 2020
From Germany
Maturity stage Prototype testing 1:1 in the lab
Looking For Network, New clients, Visibility, Funding, Partners

The environmental benefits

  • By our calculations, if only city buses in Germany alone were to operate with KEYOU technology today, we could evade 1,8 million tons of CO2 emission from fossil fuels annually.

The Financial benefits

  • 40-80 % lower TCO than other zero-emission solutions

Activity Region

  • /


Germany, Switzerland,

  • Headquarters
  • Activity

Company Profile


KEYOU is developing special H2 components and software to convert conventional engines into hydrogen combustion engines

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Headquarters 85716 Unterschleißheim, Deutschland

Networking Partner


InnoEnergy supports and invests in innovation at every stage of the journey – from classroom to end-customer.

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Solutions Associated 45
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator KEYOU has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.