Global marine shipping transports around 90% of world trade and is responsible for emissions of around 1000 million tonnes of CO2 – 2.5% of global greenhouse gas emissions – annually. Seaborne trade is predicted to increase 70% by 2030 and emissions between 50%-250%, meaning innovation is needed to reduce shipping’s carbon footprint.
The shipping industry has developed policies to try to offset emission increases. The transition to alternative fuels in the power mix is expected to reduce carbon emissions by 38%.
The only carbon-free option is hydrogen fuel. H2 can be added to any current fuel systems or fuel type, and means less fossil fuel is needed to achieve the same torque, as H2 produces energy at a rate more than 3 times higher than fossil fuels. Hydrogen fuel cells, however, are not widely used in commercial vessels, as hydrogen storage is highly dangerous (hydrogen self-ignites with air) and costs are not commercially feasible (up to €10 million per medium-sized ship).
Aris Pump Ltd. has developed H2MOVE, a safe, small-footprint onboard hydrogen generator for marine engines. H2MOVE is an electrolysis-based hydrogen generation technology that consumes up to 80% less energy than current commercial technologies, delivers 35% less air pollution, and both increases fuel efficiency and reduces fuel costs by 30%.
H2MOVE can be retrofitted to any engine, meaning no costly engine or hull re-engineering. The only byproduct of H2 – water – can be recycled and reused. Less fossil fuel is used, and fuel ignition is more complete, reducing knocking and related negative effects and increasing engine lifetime. And there are no safety issues, as hydrogen is generated on demand and immediately used.