Navalyze · LNG carrier · Ship

BW BOSTON

IMO: 9230062
Type: LNG carrier
Flag (estimated): Norway
Port of registry: Stavanger
Technical efficiency: EEXI 7.59 g CO₂/t·nm
Fuel (estimated): LNG or an alternative fuel (no methane data to tell them apart)

ISM company (DoC holder) in 2024: BW Fleet Management A/S · part of BW Group

Report year

2022 at a glance

From the 2022 THETIS-MRV report.

Fuel kg/nm

351

LNG carrier median 252 kg/nm (+39%)

CO₂ per transport work (volume)

32.0

g CO₂/m³·nm · LNG carrier median 10.4 (+208%)

Average speed

7.1 kn

LNG carrier median 14.1 kn (−50%)

Fuel per day at sea

60.1 t/day

Fuel consumed

7,666 t

CO₂ emitted

22,780 t

Distance sailed

21,843 nm

CO₂ ÷ CO₂ per mile

Time at sea

3,060 h

128 days, 35% of the year

Within the LNG carrier fleet, 2023

Set against all 355 LNG carrier ships with a full-year 2023 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 296 kg/nm · median 231 (+28%)

167Ranks 245 of 355, lowest first359

Average speedThis ship 7.2 kn · median 14.2 (−49%)

10.7Faster than 2% of LNG carrier ships16.0

CO₂ per transport work (volume)This ship 44.9 g CO₂/m³·nm · median 9.10 (+393%)

5.47Ranks 343 of 355, lowest first17.9

Middle 80% of shipsMiddle 50%LNG carrier medianThis ship

Where the emissions happen, 2022

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports0%
From the EU55%
Into the EU44%
At berth in the EU2%

Fuel burned laden

–

Not reported

CO₂ at berth

344 t

1.5% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The LNG carrier median is the middle ship of all LNG carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

BW BOSTON
LNG carrier median

200.0250.0300.0350.0400.0

’182018’192019’202020’212021’222022’232023

Average speed, kn

BW BOSTON
LNG carrier median

6.08.010.012.014.016.0

’182018’192019’202020’212021’222022’232023

CO₂ per transport work (volume), g CO₂/m³·nm

BW BOSTON
LNG carrier median

0.010.020.030.040.050.0

’182018’192019’202020’212021’222022’232023

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2022→2023	+0.1 kn	−16%	−15%	+23%	+40%	Same speed, fuel per mile down 16%; better than speed alone explains (hull, engine or trade).
2021→2022	−4.5 kn	+21%	−26%	+133%	+173%	4.5 kn slower, fuel per mile up 21%; worse than speed alone explains (fouling, weather, loading or trade).
2020→2021	+0.4 kn	−4%	−1%	−52%	−35%	0.4 kn faster, fuel per mile down 4%; better than speed alone explains (hull, engine or trade).
2019→2020	−2.1 kn	+8%	−9%	−22%	+58%	2.1 kn slower, fuel per mile up 8%; worse than speed alone explains (fouling, weather, loading or trade).
2018→2019	−1.6 kn	−6%	−16%	+76%	+5%	1.6 kn slower, fuel per mile down 6%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2024part-yearLNG	BW Fleet Management A/S	2,091	5,894	6,237	717	8.7	335	–	–
2023LNG / alt.	not published	7,942	22,152	26,805	3,720	7.2	296	–	–
2022	not published	7,666	22,780	21,843	3,060	7.1	351	–	–
2021LNG / alt.	not published	2,726	7,736	9,363	810	11.6	291	–	–
2020LNG / alt.	not published	5,935	16,512	19,499	1,741	11.2	304	–	–
2019LNG / alt.	not published	7,042	19,497	25,066	1,880	13.3	281	–	–
2018LNG / alt.	not published	4,281	11,803	14,257	959	14.9	300	–	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/m³·nm	LNG carrier median	vs LNG carrier	Rank	Verifier	Methods
2024part-yearLNG	BW Fleet Management A/S	–	–	–	–	DNV	C
2023LNG / alt.	not published	44.9	9.10	+393%	343 of 355	DNV	C
2022	not published	32.0	10.4	+208%	348 of 379	DNV	C
2021LNG / alt.	not published	11.7	10.5	+12%	173 of 289	DNV	C
2020LNG / alt.	not published	18.1	10.7	+69%	239 of 267	DNV	C
2019LNG / alt.	not published	11.4	10.9	+5%	136 of 248	DNV	C
2018LNG / alt.	not published	10.9	10.9	−0%	97 of 197	DNV	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. LNG carrier ships are benchmarked on CO₂ per transport work (volume) (TW), in g CO₂/m³·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's LNG carrier ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.