TonneMiles

General cargo ship · Liberia flag · built 2015

ECO NEMESIS: CO₂ emissions 2018–2025

IMO 9711913 EU ETS6 reporting years

CO₂ reported 2025
4,901 t
Fuel burned
1,552 t
Time at sea
1,970 h
Emitted at berth
6% of total
Share of year under way
22%
Gross tonnage
21,185

ECO NEMESIS against its type

Built in 2015, it is 8 years newer than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 21,185 gross tonnage it is larger than 82% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 216 general cargo ships here under the Liberia flag, 7.0% of the 3,081 on the register. Its MRV returns name it PRINCESSE OUI for 2018–2024 and ECO NEMESIS for 2025. The reported port of registry changed: PANAMA (2018–2019), then MONROVIA (2022–2025).

Its 4,901 t of CO₂ for 2025 is 1.7 times the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 213.4 kg CO₂, 1.7 times the type median of 122.2 kg. It logged 1,970 hours at sea against a median of 3,044 hours for its type that year. 5.9% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Across 6 years with reported emissions, the highest was 2024 (5,007 t) and the lowest 2018 (1,784 t). Its efficiency percentile within the type went from 40 in 2018 to 89 in 2019 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Year CO₂ (t) Fuel (t) Distance (nm) At sea (h) At berth (t) kg CO₂/nm EEOI Percentile
2025 4,901 1,552 — 1,970 291 213.4 — —
2024 5,007 1,592 — 2,089 127 215.2 — —
2023 2,529 801 — 1,066 56 232.3 — —
2022 2,410 758 — 894 175 255.9 — —
2019 2,525 809 11,064 894 179 228.2 13.7 89
2018 1,784 572 8,440 664 111 211.4 7.5 40

Vessel particulars

IMO number
9711913
Previously reported as
PRINCESSE OUI
Call sign
5LBL6
Ship type
General cargo ship
Gross tonnage
21,185
Length overall
179.9 m
Beam
28.2 m
Year built
2015
Flag state
Liberia per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Panama. The flag shown is from the newest official source, the EU MRV return for 2025.
Port of registry
Monrovia MRV 2025
Technical efficiency (design)
EEXI (5.06 gCO₂/t·nm)
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-03-16
Compliance document expires
2027-06-30

Efficiency against its own type2019

Position 2,825 of 3,161 qualifying bulk carriers by EEOI, at the 89th percentile. The dashed line is the type median, 8.1; this vessel reported 13.7.

0255075100more efficientless efficientThis vessel: 89th percentile, EEOI 13.7

EEOI divides emissions by transport work, which for this vessel and year was 184,725,677 tonne-miles over 11,064 nautical miles.

Reported CO₂ by year

2018: 1,784 t20181,7842019: 2,525 t20192022: 2,410 t20222023: 2,529 t20232024: 5,007 t20242025: 4,901 t20254,901

Reported CO₂ in 2025 was 174.7% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, so the series has gaps.

From 2024 to 2025, emissions fell 2.1% and CO₂ per nautical mile fell 0.8%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.

Where the 2025 emissions occurred

At berthAt berth: 291 t291Within EEA portsWithin EEA ports: 291 t291Voyages between EEA portsVoyages between EEA ports: 836 t836Voyages to an EEA portVoyages to an EEA port: 2,577 t2,577Voyages from an EEA portVoyages from an EEA port: 1,197 t1,197

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
4,977 t
Methane (CH₄)
0.08 t
Nitrous oxide (N₂O)
0.28 t
Under EU ETS
3,014 t, 62% of total

Verifier history

From reporting yearVerifierAccredited in
2018Nippon Kaiji KyokaiJapan
2022DNVGermany

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

Sources and how to read this

This page draws on 6 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