The sail system is integrated with a Rolls-Royce gas spark ignition engine.


Gas Engine

Rolls Royce Logo


  • Operating in 26 vessels to date
  • Developed to use LNG, a significant transitional fossil fuel for the shipping industry. LNG is cleaner, emitting no sulphur and reducing nitrous oxide by 90% and CO2 by 23%. Emission control areas in Scandinavia, EU, US and emerging economies stimulate the emergence of bunkering supply infrastructure across EU and beyond.
  • Delivers propulsive force to B9 Ships for
    • manouvering in port
    • in event of insufficient wind
    • to facilitate motor-sailing - which may yet be the most efficient operational mode (more testing required) as the B9 Ship hull design is so efficient, a small amount of ‘push’ allows the sail to kick in and optimise free wind




In the case of B9 Ships the engine is fuelled by food waste




  • Development of facilities for cost-effective production of liquid bio-methane (LBM or green-gas) is well underway by sister company B9 Organic Energy, and others including Big 6 energy generators
  • LBM has the exact same chemical and physical make-up as LNG and is interchageable once cleaned
  • LBM injected directly in to LNG grid through a virtual biomethane supply chain

LBM Infrastructure

  • A certification process will ensure LBM injected in to grid matches that taken out to operate ships.
  • Enables B9 Ships to authenticate 100% renewable fuel status highly valuable when financial incentives are introduced to stimulate ‘green’ shipping
  • LBM is 2nd generation bio-fuel so it avoids contentious food v fuel controversy
  • 2nd generation bio-fuels attract x2 Renewable Obligation certificates and Renewable Transport Fuel Certificates
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