Chemical tanker · Denmark flag · built 2009

JETTE THERESA: CO₂ emissions 2018–2025

IMO 9406582 MMSI 220624000EU ETS8 reporting years

CO₂ reported 2025: 8,782 t
Fuel burned: 2,755 t
Distance: 44,204 nm
Time at sea: 4,833 h
Emitted at berth: 10% of total
Share of year under way: 55%
Gross tonnage: 7,728

JETTE THERESA against its type

Built in 2009, it is 1 year older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 7,728 gross tonnage it is smaller than 89% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 93 chemical tankers here under the Denmark flag, 4.0% of the 2,344 on the register. The returns for 2018–2025 all give Herning as port of registry.

Its 8,782 t of CO₂ for 2025 is 1.6 times the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 198.7 kg CO₂, 21% below the type median of 250.2 kg. It logged 4,833 hours at sea against a median of 2,109 hours for its type that year. 9.9% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2018 (10,825 t) and the lowest 2022 (6,674 t). Its efficiency percentile within the type went from 100 in 2018 to 95 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 1 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	8,782	2,755	44,204	4,833	872	198.7	43.9	95
2024	8,514	2,700	41,526	4,718	701	205.0	38.1	89
2023	7,764	2,461	34,118	3,842	654	227.6	45.7	94
2022	6,674	2,117	31,630	3,712	528	211.0	40.3	92
2021	9,449	2,988	51,407	4,841	164	183.8	43.5	94
2020	9,775	3,114	51,522	4,242	958	189.7	35.2	87
2019	8,378	2,670	43,160	4,007	1,055	194.1	50.2	96
2018	10,825	3,457	46,254	4,393	250	234.0	149.4	100

Vessel particulars

IMO number: 9406582
MMSI: 220624000
Ship type: Chemical tanker
Gross tonnage: 7,728
Length overall: 129.6 m
Year built: 2009
Flag state: Denmark per EU MRV 2025
Port of registry: Herning MRV 2025
Ice class: IA
Technical efficiency (design): EEXI (11.02 gCO₂/t·nm)
Verifier: DNV, Germany
Accreditation: VS-16026-01
Compliance document issued: 2026-02-17
Compliance document expires: 2027-06-30

Efficiency against its own type2025

Position 1,282 of 1,348 qualifying chemical tankers by EEOI, at the 95th percentile. The dashed line is the type median, 14.4; this vessel reported 43.9.

EEOI divides emissions by transport work, which for this vessel and year was 200,174,379 tonne-miles over 44,204 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 18.9% lower than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 3.1% while distance sailed rose 6.4%and CO₂ per nautical mile fell 3.1%.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: 8,917 t
Methane (CH₄): 0.14 t
Nitrous oxide (N₂O): 0.50 t
Under EU ETS: 8,310 t, 95% of total

Observed movementsAIS · Norwegian waters

First seen: 19 Feb 2026
Last seen: 22 Apr 2026
Days observed: 5
Positions: 512
Median speed: 10.6 kn

Its recorded positions span 58.0°N to 59.9°N and 9.2°E to 10.8°E.

93 hourly points from 512 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.

Positions recorded per month

Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.

Verifier history

From reporting year	Verifier	Accredited in
2018	Lloyd's Register Quality Assurance Ltd	United Kingdom
2020	AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD)	Greece
2023	DNV	Germany

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

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.
Movements: Norwegian Coastal Administration open AIS extract.

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