The GHG reductions

We have analysed 150,000 voyages of 13,000 cargo ships, in real operating and weather conditions, and these are the results.

The GHG reduction analysis

The 2019 shipping data for the wet and dry bulk fleet was analyzed, and the saving potential of all voyages was calculated as the difference between the baseline consumption and consumption if sailed according to the suggestions of Blue Visby Solution.

The data was analyzed for the 150 most visited ports and consisted of over 150 000 bulk ship voyages. On 87% of the voyages, ship speed can be reduced, leading to shorter waiting times at anchorage without any reduction in market capacity. There is significant potential for increasing shipping efficiency, and the typical savings potential of all analysed voyages is 16%.

The noteworthy aspect is that savings achieved are very close compared to the just-in-time arrivals, which are harder to achieve globally. It is also clear that expected savings vary between different ship segments and ports and between laden and ballast voyages. Furthermore, with the operational point of view, early version the algorithm resulted on average less than three ETA guidance updates for a ship on a given day, which with further refinements could be reduced even more to keep communication on a practical level.

A subset of the results is visualized in the below charts.

The expected average savings are different between ballast and laden condition in the various segments, but there are substantial benefits in all analyzed segments.
The results for the top 50 ports is visualized in the below chart. The saving potential of laden and ballast voyages to each port is presented as proportional to the baseline consumption.
We have compared the results of the Blue Visby Solution with Just-in-Time algorithms, where ships would theoretically be advised to proceed straight to berth, without any waiting time at all. This graph shows that the Blue Visby Solution delivers comparable reductions of Just-in-Time berthing.