Slow steaming became a reflex during weak markets, but eco speed is not always the right answer. When freight is strong, the extra revenue from arriving sooner can outweigh the fuel saved by going slow.
Decide on TCE, not fuel
Compute the Time Charter Equivalent for each speed option: eco speed lowers bunker cost but lengthens the voyage; full speed does the reverse. The higher TCE wins — and the answer flips with the freight rate.
NAVGreen’s AI voyage calculation runs both scenarios instantly under live bunker and rate assumptions, so the speed decision is a number rather than a habit.