TonneMiles

Gas carrier · Singapore flag · built 2014

JS GREENSAIL: CO₂ emissions 2018–2025

IMO 9551777 EU ETS8 reporting years

CO₂ reported 2025
9,288 t
Fuel burned
2,961 t
Distance
60,134 nm
Time at sea
4,988 h
Emitted at berth
2% of total
Share of year under way
57%
Gross tonnage
12,743

JS GREENSAIL against its type

Built in 2014, it is 1 year newer than the median gas carrier on this register, which was built in 2013 (530 vessels with a known build year). At 12,743 gross tonnage it is smaller than 75% of the other 525 gas carriers with a recorded tonnage. It is one of 106 gas carriers here under the Singapore flag, 15.4% of the 688 on the register. Its MRV returns name it JS GREENSAIL for 2018 and THEKLA SCHULTE for 2019–2025. The returns for 2019–2025 all give Singapore as port of registry.

Its 9,288 t of CO₂ for 2025 is 1.6 times the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 154.4 kg CO₂, 40% below the type median of 256.2 kg. It logged 4,988 hours at sea against a median of 1,943 hours for its type that year. 2.1% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 8 years with reported emissions, the highest was 2022 (10,287 t) and the lowest 2018 (2,973 t). Its efficiency percentile within the type went from 31 in 2018 to 62 in 2025 (lower is more efficient). Of the 3 comparable vessels listed below with a 2025 return, 0 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 9,288 2,961 60,134 4,988 196 154.4 37.2 62
2024 8,184 2,597 41,558 3,811 370 196.9 58.8 69
2023 9,563 3,048 53,061 4,528 864 180.2 98.3 86
2022 10,287 3,266 44,390 3,620 568 231.8 58.0 68
2021 9,911 3,141 44,658 3,684 1,547 221.9 48.8 57
2020 6,431 2,032 31,418 2,470 333 204.7 52.6 62
2019 5,263 1,675 28,316 2,700 540 185.9 45.0 52
2018 2,973 953 15,247 1,580 60 195.0 32.2 31

Vessel particulars

IMO number
9551777
Previously reported as
THEKLA SCHULTE
Ship type
Gas carrier
Gross tonnage
12,743
Length overall
142.0 m
Beam
21.0 m
Year built
2014
Flag state
Singapore per EU MRV 2025
Port of registry
Singapore MRV 2025
Technical efficiency (design)
EEXI (11.16 gCO₂/t·nm)
Verifier
DNV, Germany
Accreditation
VS-16026-01
Compliance document issued
2026-01-22
Compliance document expires
2027-06-30

Efficiency against its own type2025

Position 180 of 292 qualifying gas carriers by EEOI, at the 62nd percentile. The dashed line is the type median, 27.9; this vessel reported 37.2.

0255075100more efficientless efficientThis vessel: 62nd percentile, EEOI 37.2

EEOI divides emissions by transport work, which for this vessel and year was 249,802,582 tonne-miles over 60,134 nautical miles.

Reported CO₂ by year

2018: 2,973 t20182,9732019: 5,263 t20192020: 6,431 t20202021: 9,911 t20212022: 10,287 t20222023: 9,563 t20232024: 8,184 t20242025: 9,288 t20259,288

Reported CO₂ in 2025 was 212.4% higher than in 2018, for EU/EEA voyages only.

From 2024 to 2025, emissions rose 13.5% while distance sailed rose 44.7%and CO₂ per nautical mile fell 21.6%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

At berthAt berth: 196 t196Within EEA portsWithin EEA ports: 196 t196Voyages between EEA portsVoyages between EEA ports: 648 t648Voyages to an EEA portVoyages to an EEA port: 3,995 t3,995Voyages from an EEA portVoyages from an EEA port: 4,449 t4,449

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent
9,433 t
Methane (CH₄)
0.15 t
Nitrous oxide (N₂O)
0.53 t
Under EU ETS
5,066 t, 55% of total

Verifier history

From reporting yearVerifierAccredited in
2018Bureau Veritas Certification FranceFrance
2019DNVGermany

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

Sources and how to read this

This page draws on 8 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