Fossil Fuels Are 40% Of Freight Shipping Tonnage, But Half Its Fuel Use
cleantechnica.com Jun 17, 2026

Fossil Fuels Are 40% Of Freight Shipping Tonnage, But Half Its Fuel Use

AI-summarised brief · reviewed before publication

Fossil fuels account for approximately 40% of maritime tonnage, but about half of the energy used in freight shipping due to their long-haul bulk trades. This distinction is crucial in understanding the maritime energy transition, as shipping fuel demand is driven by transport work rather than just tons loaded at ports. The decline of fossil fuel cargoes will remove a larger share of ocean work and fuel burned, making it unnecessary to find a one-for-one replacement fuel for all of that work. Other segments of shipping, such as offshore wind construction and service vessels, are better suited to electrification and may grow in the transition.

💡 Why It Matters

  • · The maritime energy transition is not just about replacing fossil fuels with alternative molecules, but also about reducing the overall energy demand through changes in cargo composition and transport work.
  • · By focusing on the remaining fuel-burning work after fossil cargo declines, the industry can identify opportunities for electrification and efficiency gains, making the transition more feasible and less reliant on a universal global fuel chain.