TonneMiles

Bulk carrier · Bahamas flag · built 2020

SUSANOO HARMONY: CO₂ emissions 2021–2025

IMO 9791054 EU ETS4 reporting years

CO₂ reported 2024
3,648 t
Fuel burned
1,158 t
Distance
18,942 nm
Time at sea
1,692 h
Emitted at berth
3% of total
Share of year under way
19%
Gross tonnage
23,770

SUSANOO HARMONY against its type

Built in 2020, it is 8 years newer than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 23,770 gross tonnage it is smaller than 80% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 218 bulk carriers here under the Bahamas flag, 2.7% of the 8,138 on the register. Its MRV returns name it SUSANOO HARMONY for 2021–2022 and UNITY HARMONY for 2024–2025. The reported port of registry changed: MONROVIA (2021–2022), then NASSAU (2024–2025).

Its 3,648 t of CO₂ for 2024 is close to the median of 3,377 t among the 3,676 bulk carriers on this register that reported for 2024. Per nautical mile it emitted 192.6 kg CO₂, 27% below the type median of 264.0 kg. It logged 1,692 hours at sea against a median of 1,238 hours for its type that year. 2.6% of its 2024 emissions were at berth; the median for bulk carriers was 2.9%. Across 3 years with reported emissions, the highest was 2024 (3,648 t) and the lowest 2022 (1,260 t). Its efficiency percentile within the type went from 28 in 2021 to 47 in 2024 (lower is more efficient).

No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.

Emissions by year2021–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 No EU/EEA voyages reported
2024 3,648 1,158 18,942 1,692 95 192.6 7.7 47
2022 1,260 399 5,617 464 39 224.2 8.3 48
2021 3,567 1,130 16,641 1,312 135 214.3 6.9 28

Vessel particulars

IMO number
9791054
Previously reported as
UNITY HARMONY
Ship type
Bulk carrier
Gross tonnage
23,770
Length overall
180.0 m
Beam
30.0 m
Year built
2020
Flag state
Bahamas per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Liberia. The flag shown is from the newest official source, the EU MRV return for 2025.
Port of registry
NASSAU MRV 2024
Technical efficiency (design)
EEXI (5.09 gCO₂/t·nm)
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2025-03-17
Compliance document expires
2026-06-30

Efficiency against its own type2024

Position 1,353 of 2,858 qualifying bulk carriers by EEOI, at the 47th percentile. The dashed line is the type median, 7.9; this vessel reported 7.7.

0255075100more efficientless efficientThis vessel: 47th percentile, EEOI 7.7

EEOI divides emissions by transport work, which for this vessel and year was 473,797,403 tonne-miles over 18,942 nautical miles.

Reported CO₂ by year

2021: 3,567 t20213,5672022: 1,260 t20222024: 3,648 t20243,648

Reported CO₂ in 2024 was 2.3% higher than in 2021, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.

From 2022 to 2024, emissions rose 189.6% while distance sailed rose 237.2%and CO₂ per nautical mile fell 14.1%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2024 emissions occurred

At berthAt berth: 95 t95Within EEA portsWithin EEA ports: 95 t95Voyages between EEA portsVoyages between EEA ports: 673 t673Voyages to an EEA portVoyages to an EEA port: 2,691 t2,691Voyages from an EEA portVoyages from an EEA port: 190 t190

Methane, nitrous oxide and EU ETS2024

Total CO₂ equivalent
3,705 t
Methane (CH₄)
0.06 t
Nitrous oxide (N₂O)
0.21 t
Under EU ETS
2,208 t, 61% of total

Verifier history

From reporting yearVerifierAccredited in
2021Nippon Kaiji KyokaiJapan
2024DNVGermany

A change of verifier is not in itself a sign of anything being wrong.

Sources and how to read this

This page draws on 4 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, a licensed photograph, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.

Comparable vesselsnearest by tonnage, same type