Annual Efficiency Ratio development (AER)

Effect of upgrade and EEXI modification

In 2022 Solvang had 8 vessels categorized as D. In 2023 there were 3 D-vessels; one due to trade, the other two due to late dry-docking and modification at year-end, taking effect from 2024. In 2024, alle vessels will rate as C or better.

The average AER for the Solvang fleet and for the vessel groups has been recalculated in 2023. By using weighted average for transport work (dead weight * sailed distance), we get a better picture of the actual AER for the fleet. 

AER reduction 2009 - 2023

Ethylene fleet: 34 %
VLGC fleet: 17 %
LGC fleet: 21 %
Total fleet: 30 %

Energy Efficiency Operational Indicator (EEOI

47% reduction since 2009

The average EEOI has been recalculated in a similar way as for AER, but weighing the average for transport work (cargo carried * sailed distance).

Changing of cargo from ammonia to LPG for several of the LGC vessels increased EEOI. Also higher consumption on some of the vessels due increased marine growth from waiting time in ports and canal inefficiencies.

Five LGCs dry-docked in 2023, giving positive effect. Sale of three older VLGCs since 2021 with a relatively high dead  weigth/cargo capacity ratio in CBM, contribute to improved AER for the VLGC class, but impacts the average for the fleet as a whole in a negative way. 

Solvang energy consumption and GHG emissions

The total fleet emissions have increased due to the fleet expansion and more operations per vessel. In 2009 we operated 16 vessels and in December 2023 we had 22.

From 2009 to 2023

Average emission per vessel: – 18.7 %
Cargo capacity: + 25.3 %
Dead weight tonnes DWT: + 15.6 %

Sludge garbage

Cbm Fleet total 2023
Sludge produced 3,065
Sludge incinerated 1,082
Sludge water evaporated 1,327
Sludge disposed 747


Plastics 332
Food wastes 14
Domestic waste 234
Cooking oil 4
Incenerator ashes 39
Operational wastes 79
E-waste 20

Environmental Ship Index (ESI) score 2023

Rating of environmental performance. Best possible score is 100 points. This shows that the five newbuilds on the right side perform very good, around 90 points. All vessels with scrubber technology perform well.

ESI identifies seagoing ships that perform better in reducing air emissions than required by the current emission standards of the International Maritime Organization (IMO)

Employee turnover 2013-2023

Turnover for CREW is retention rate - 100


Continuous HSEQ programme since 2009

TRCF - Total Recordable Case Frequency

Sick leave 2013-2023

Inspections 2023


Flag & Port State control 2023


42 DNV inspections

0.2 observations on average

42 port state controls

1 observations on average

Due to special circumstances, one vessel had an average of 6 observations.

Internal inspections follow the fleet seize. External inspections by DNV and flag states are done in 5 year intervals.