Global Energy Ventures (GEV) has revealed it wants to start constructing a scaled-down compressed hydrogen carrier in 2023.

The Sydney-listed company said the pilot C-H2 vessel will be operational by the middle of the decade.

The smaller vessel will carry 430 tonnes of the green fuel, against the 2,000 tonnes envisioned by a previous design for which GEV already has class approval in principle from ABS.