Bulk carrier · Portugal flag · built 2007

HELENA G: CO₂ emissions 2018–2025

IMO 9358383 EU ETS8 reporting years

CO₂ reported 2025: 7,191 t
Fuel burned: 2,278 t
Distance: 29,220 nm
Time at sea: 2,741 h
Emitted at berth: 3% of total
Share of year under way: 31%
Gross tonnage: 22,790

HELENA G against its type

Built in 2007, it is 5 years older than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 22,790 gross tonnage it is smaller than 84% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 157 bulk carriers here under the Portugal flag, 1.9% of the 8,138 on the register. The returns for 2018–2025 all give Madeira as port of registry.

Its 7,191 t of CO₂ for 2025 is 2.2 times the median of 3,238 t among the 3,732 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 246.1 kg CO₂, close to the type median of 260.7 kg. It logged 2,741 hours at sea against a median of 1,199 hours for its type that year. 3.3% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 8 years with reported emissions, the highest was 2020 (9,570 t) and the lowest 2022 (3,151 t). Its efficiency percentile within the type went from 76 in 2018 to 87 in 2025 (lower is more efficient). Of the 7 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	7,191	2,278	29,220	2,741	241	246.1	11.8	87
2024	8,052	2,570	32,142	2,934	314	250.5	11.6	84
2023	9,103	2,903	33,309	2,957	284	273.3	13.8	90
2022	3,151	1,003	10,619	974	86	296.8	12.5	83
2021	5,281	1,690	18,909	1,605	124	279.3	11.2	79
2020	9,570	3,050	30,752	2,795	728	311.2	11.5	82
2019	6,907	2,199	25,714	2,619	257	268.6	12.8	87
2018	3,324	1,056	12,852	1,732	60	258.6	10.6	76

Vessel particulars

IMO number: 9358383
Ship type: Bulk carrier
Gross tonnage: 22,790
Length overall: 199.9 m
Beam: 23.7 m
Year built: 2007
Flag state: Portugal per EU MRV 2025
Port of registry: Madeira MRV 2025
Ice class: IC
Technical efficiency (design): EEXI (5.07 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-02-27
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 2,818 of 3,241 qualifying bulk carriers by EEOI, at the 87th percentile. The dashed line is the type median, 7.6; this vessel reported 11.8.

EEOI divides emissions by transport work, which for this vessel and year was 611,513,605 tonne-miles over 29,220 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 116.3% higher than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions fell 10.7% while distance sailed fell 9.1%and CO₂ per nautical mile fell 1.8%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent: 7,303 t
Methane (CH₄): 0.11 t
Nitrous oxide (N₂O): 0.41 t
Under EU ETS: 3,998 t, 56% of total

Sources and how to read this

Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
Vessel particulars: Wikidata (CC0) and Wikimedia Commons.

This page draws on 8 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, 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.