Building on my recent post about the maritime sector’s CO2 emissions, I wanted to explore the potential of various green technologies in steering this crucial industry towards a more sustainable future.

The Potential of Green Technologies:

The journey to decarbonization in maritime transport involves a range of technologies, each with its unique potential to reduce CO2 emissions.

1. Biofuels: According to the [International Renewable Energy Agency (IRENA)](https://www.irena.org/), biofuels can reduce CO2 emissions by 20-90%, depending on the type and production process. Advanced biofuels from waste materials or non-food crops offer the higher end of this range due to their lower life-cycle carbon footprint.

2. Liquidfide Natural Gas (LNG): As reported by [The Maritime Executive](https://www.maritime-executive.com/), LNG can lower CO2 emissions by about 20-25% on a tank-to-wake basis compared to traditional marine fuels. However, considering the entire life cycle, the reduction might be less due to factors like methane slip during production and transportation.

3. Electric and Hybrid Systems: The [International Council on Clean Transportation (ICCT)](https://theicct.org/area/marine) notes that the potential of these systems depends mainly on the source of the electricity. Despite their obvious regenerative charging limitations on boats and ships, electric systems can reduce CO2 emissions significantly, up to 100% in some cases. Hybrid systems offer variable reductions based on their reliance on electric propulsion versus conventional fuels. Our testing shows a 40% to 60% reduction in fuel cost and CO2 emission while keeping the full operational level as a traditional combustion engine.

Collaborative Efforts and Policy Support:

Achieving these emission reductions isn’t just a technological challenge; it requires a collaborative approach among all stakeholders in the maritime ecosystem. Policy support, such as the EU’s “Fit for 55” package, is crucial in incentivizing the adoption of these green technologies.


As the maritime sector embarks on this green transition, the choices we make today will shape the sustainability of global trade and transportation. Integrating biofuels, LNG, and electric/hybrid technologies with strong collaborative efforts and supportive policies marks a significant stride toward a greener maritime future.

What are your thoughts on these green technologies? Which existing and near-future technology is most promising for transforming the maritime sector?