---
source_url: "https://www.trusteddocks.com/market-data/emissions?period=2025&segment=lng-carrier&utm_source=openai"
title: "LNG Carrier CII Bands, Emissions Ranking & Retrofit Options (2025) | TrustedDocks"
mirrored_at: 2026-08-15T15:03:49.690Z
host: www.trusteddocks.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/www.trusteddocks.com/market-data/emissions__q__period_2025__segment_lng-carrier__utm_source_openai"
---

> **Original source:** https://www.trusteddocks.com/market-data/emissions?period=2025&segment=lng-carrier&utm_source=openai

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[Home](https://www.trusteddocks.com/) › [Emissions](https://www.trusteddocks.com/market-data/emissions) › LNG Carrier

Ships ranked by **AER** (Annual Efficiency Ratio) — grams of CO₂ emitted per tonne of deadweight carried one nautical mile (g CO₂/dwt·nm), the IMO carbon-intensity metric behind the CII rating — from official [EU MRV](https://mrv.emsa.europa.eu/) emissions data for reporting year 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.

## CII band distribution

72 at D/E

A 203B 113C 60D 30E 42

448 rated vessels · 37 of the D/E set dock within 12 months

## Docking pipeline — D/E vessels per quarter

10

Q3

11

Q4

4

'27 Q1

5

'27 Q2

7

'27 Q3

2

'27 Q4

5

'28 Q1

6

'28 Q2

Windows estimated from the class-expiry docking model, not bookings.

## Top eligible retrofit measures for this segment

Measure

Eligible

CO₂ reduction

Capex band

Payback

Confidence

Propeller redesign / replacement

374

5–10%

€400k–1,200k

—

vendor claim

Shaft generator / PTO

156

3–6%

€500–1,500/kW

—

vendor claim

Exhaust waste heat recovery

73

3–8%

€800–2,000/kW

—

vendor claim

Turbocharger cut-out

61

1–3%

€80k–250k

—

vendor claim

Capex bands are indicative vendor/literature priors. Payback appears once price parameters are configured.

## Retrofit opportunity in this segment

45

D/E vessels with at least one eligible measure

€18–54M

capex range, top measure per vessel (45 of 45 with computable scaling)

0.06–0.12 Mt

annual CO₂ reduction available (vendor-claimed ranges × reported emissions)

## Retrofit prospects — worst band first

Vessel

Band

Age

Drop year

Req. reduction 2030

Dock window

[EXCELSIOR](https://www.trusteddocks.com/vessel/9239616) · 60-100k

E

21y

2026

96%

Oct 2027

[GAS AGILITY](https://www.trusteddocks.com/vessel/9850680) · <25k

E

6y

2026

90%

Apr 2028

[GREEN ZEEBRUGGE](https://www.trusteddocks.com/vessel/9750024) · <25k

E

9y

2026

78%

Nov 2026

[GAS POLARIS](https://www.trusteddocks.com/vessel/9230048) · 60-100k

E

24y

2026

75%

Feb 2027

[ENERGOS POWER](https://www.trusteddocks.com/vessel/9861809) · 60-100k

E

5y

2026

74%

Apr 2031

See all 448 rated lng carriers with exposure and dock windows. [Sign in →](https://www.trusteddocks.com/login)

Size (DWT)

Year

390

vessels ranked

3.44

greenest (g CO₂/dwt·nm)

5.88

segment median

#

Vessel

Size (DWT)

Built

Length

Main Engine

Carbon intensity — AER (g CO₂/dwt·nm)

Grade

1

[FLEX RANGER](https://www.trusteddocks.com/vessel/imo/9709025)

IMO 9709025

156,000

2018

293 m

MAN - 5G70ME-C9-GI

3.4

A

2

[GREENERGY PEARL](https://www.trusteddocks.com/vessel/imo/9961489)

IMO 9961489

93,875

2025

299 m

CSSC-MES Diesel Co Ltd - China 5X72DF- iCER

3.9

A

3

[CLEAN MISTRAL](https://www.trusteddocks.com/vessel/imo/9967328)

IMO 9967328

107,386

2025

300 m

Hyundai Heavy Industries Co Ltd - South Korea 6G70ME-C10-EGRBP

4.0

A

4

[LECH KACZYNSKI](https://www.trusteddocks.com/vessel/imo/9922976)

IMO 9922976

95,428

2022

299 m

Wärtsilä - 5X72DF

4.0

A

5

[MARAN GAS MARSEILLE](https://www.trusteddocks.com/vessel/imo/9924869)

IMO 9924869

89,300

2023

293 m

WinGD 5X72DF

4.1

A

6

[ENERGY ENDURANCE](https://www.trusteddocks.com/vessel/imo/9948695)

IMO 9948695

95,165

2024

290 m

Wärtsilä - 5X72DF

4.1

A

7

[CLEAN VITALITY](https://www.trusteddocks.com/vessel/imo/9943499)

IMO 9943499

107,621

2024

300 m

Hyundai - 5X72DF

4.1

A

8

[MINERVA CHIOS](https://www.trusteddocks.com/vessel/imo/9877341)

IMO 9877341

88,228

2021

293 m

Wärtsilä - 5X72DF

4.1

A

9

[FLEX RAINBOW](https://www.trusteddocks.com/vessel/imo/9709037)

IMO 9709037

156,000

2013

293 m

Doosan - 5G70ME-C9-GI

4.1

A

10

[PRISM BRILLIANCE](https://www.trusteddocks.com/vessel/imo/9810551)

IMO 9810551

97,493

2019

299 m

Hyundai - 5X72DF

4.2

A

11

[CELSIUS GENEVA](https://www.trusteddocks.com/vessel/imo/9945435)

IMO 9945435

92,385

2023

299 m

HSD Engine Co Ltd - South Korea 6X62DF

4.2

A

12

[REX TILLERSON](https://www.trusteddocks.com/vessel/imo/9953248)

IMO 9953248

93,076

2024

299 m

6X72DF-LPSCR

4.2

A

14

[PRISM AGILITY](https://www.trusteddocks.com/vessel/imo/9810549)

IMO 9810549

97,494

2019

299 m

Hyundai - 5X72DF

4.2

A

13

[PUTERI SAADONG](https://www.trusteddocks.com/vessel/imo/9937945)

IMO 9937945

93,414

2024

290 m

Wärtsilä - 5X72DF

4.2

A

15

[PUTERI LEDANG](https://www.trusteddocks.com/vessel/imo/9947598)

IMO 9947598

93,414

2024

290 m

Hyundai - 5X72DF

4.2

A

16

[PRISM COURAGE](https://www.trusteddocks.com/vessel/imo/9888481)

IMO 9888481

97,494

2021

299 m

Hyundai - 5X72DF

4.2

A

17

[ENERGY FIDELITY](https://www.trusteddocks.com/vessel/imo/9540089)

IMO 9540089

95,165

2023

290 m

HD Hyundai Heavy Industries Co Ltd - South Korea 5X72DF

4.2

A

18

[MARAN GAS NICE](https://www.trusteddocks.com/vessel/imo/9941518)

IMO 9941518

89,292

2024

293 m

WinGD 5X72DF

4.3

A

19

[MARAN GAS ANTIBES](https://www.trusteddocks.com/vessel/imo/9941520)

IMO 9941520

89,469

2024

293 m

WinGD 5X72DF

4.3

A

20

[LNG HARMONY](https://www.trusteddocks.com/vessel/imo/9917555)

IMO 9917555

95,655

2023

299 m

Wärtsilä - 5X72DF

4.3

A

21

[NEW GREEN](https://www.trusteddocks.com/vessel/imo/9947500)

IMO 9947500

95,746

2024

299 m

Wärtsilä - 5X72DF

4.3

A

22

[MARVEL DOVE](https://www.trusteddocks.com/vessel/imo/9964182)

IMO 9964182

94,539

2024

290 m

Hyundai Heavy Industries Co. Ltd. 6G70ME-C10

4.4

A

23

[CELSIUS CHARLOTTE](https://www.trusteddocks.com/vessel/imo/9878711)

IMO 9878711

92,253

2021

299 m

Wärtsilä - 5X72DF

4.4

A

25

[PRISM DIVERSITY](https://www.trusteddocks.com/vessel/imo/9904651)

IMO 9904651

97,494

2022

299 m

Hyundai - 5X72DF

4.5

A

24

[CLEAN COPANO](https://www.trusteddocks.com/vessel/imo/9886744)

IMO 9886744

107,817

2022

300 m

Wärtsilä - 5X72DF

4.5

A

26

[IGNACY LUKASIEWICZ](https://www.trusteddocks.com/vessel/imo/9946398)

IMO 9946398

95,440

2023

299 m

Hyundai Heavy Industries Co Ltd - South Korea 5X72DF

4.5

A

27

[VIVIRT CITY LNG](https://www.trusteddocks.com/vessel/imo/9895238)

IMO 9895238

92,855

2019

299 m

Wärtsilä - 5X72DF

4.5

A

28

[COOL DISCOVERER](https://www.trusteddocks.com/vessel/imo/9861031)

IMO 9861031

93,667

2020

299 m

Hyundai - 5X72DF

4.5

A

29

[MALAGA KNUTSEN](https://www.trusteddocks.com/vessel/imo/9904182)

IMO 9904182

95,548

2022

299 m

Wärtsilä - 5X72DF

4.5

A

30

[CLEAN DESTINY](https://www.trusteddocks.com/vessel/imo/9943487)

IMO 9943487

107,637

2023

300 m

Hyundai Heavy Industries Co Ltd - South Korea 6G70ME-C10-GA-EGRBP

4.5

A

32

[CLEAN FUTURE](https://www.trusteddocks.com/vessel/imo/9943504)

IMO 9943504

107,661

2024

300 m

Hyundai Heavy Industries Co. Ltd. 6G70ME-C10-GA-EGRBP

4.5

A

31

[COOL RACER](https://www.trusteddocks.com/vessel/imo/9869265)

IMO 9869265

93,423

2021

299 m

Wärtsilä - 5X72DF

4.5

A

33

[NANTES KNUTSEN](https://www.trusteddocks.com/vessel/imo/9926714)

IMO 9926714

95,548

2024

299 m

Wärtsilä - 5X72DF

4.5

A

34

[ELISA ARDEA](https://www.trusteddocks.com/vessel/imo/9980540)

IMO 9980540

95,120

2024

297 m

5X72DF

4.5

A

35

[YIANNIS](https://www.trusteddocks.com/vessel/imo/9879674)

IMO 9879674

92,619

2021

295 m

MAN - 5G70ME-C9-GI

4.6

A

36

[LNG PROSPERITY](https://www.trusteddocks.com/vessel/imo/9902938)

IMO 9902938

95,630

2023

299 m

Hyundai - 5X72DF

4.6

A

38

[LNGSHIPS ATHENA](https://www.trusteddocks.com/vessel/imo/9872949)

IMO 9872949

93,534

2021

299 m

Hyundai - 5X72DF

4.6

A

37

[MESAIEED](https://www.trusteddocks.com/vessel/imo/9975519)

IMO 9975519

93,124

2025

299 m

Hyundai - 5X72DF

4.6

A

39

[SANTANDER KNUTSEN](https://www.trusteddocks.com/vessel/imo/9904170)

IMO 9904170

95,548

2022

299 m

Wärtsilä - 5X72DF

4.6

A

40

[CELSIUS CAROLINA](https://www.trusteddocks.com/vessel/imo/9878723)

IMO 9878723

92,310

2021

299 m

Wärtsilä - 5X72DF

4.6

A

41

[HELLAS ATHINA](https://www.trusteddocks.com/vessel/imo/9872999)

IMO 9872999

92,955

2021

299 m

Wärtsilä - 6X72DF

4.6

A

42

[BONITO LNG](https://www.trusteddocks.com/vessel/imo/9845788)

IMO 9845788

93,534

2017

299 m

Hyundai - 5X72DF

4.6

A

43

[DORADO LNG](https://www.trusteddocks.com/vessel/imo/9863182)

IMO 9863182

94,000

2020

293 m

Wärtsilä - 5X72DF

4.6

A

45

[VENTURE BAYOU](https://www.trusteddocks.com/vessel/imo/9958846)

IMO 9958846

88,001

2024

290 m

MAN-B&W 5G70ME-C10-GA

4.6

A

44

[PEARL LNG](https://www.trusteddocks.com/vessel/imo/9862346)

IMO 9862346

94,000

2020

293 m

Wärtsilä - 5X72DF

4.6

A

46

[KOOL TIGER](https://www.trusteddocks.com/vessel/imo/9976135)

IMO 9976135

92,924

2025

290 m

Hyundai Heavy Industries Co. Ltd. 5G70ME-C10-GA

4.7

A

47

[LA SEINE](https://www.trusteddocks.com/vessel/imo/9845764)

IMO 9845764

93,534

2020

299 m

Hyundai - 5X72DF

4.7

A

49

[CLEAN RESOLUTION](https://www.trusteddocks.com/vessel/imo/9943475)

IMO 9943475

107,573

2023

300 m

HD Hyundai Heavy Industries Co Ltd - South Korea 6G70ME-C10-GA-EGRBP

4.7

A

48

[WOODSIDE CHANEY](https://www.trusteddocks.com/vessel/imo/9753026)

IMO 9753026

94,945

2019

295 m

Doosan - 7G70ME-C9-GI

4.7

A

50

[MARAN GAS ANDROS](https://www.trusteddocks.com/vessel/imo/9810379)

IMO 9810379

94,638

2019

295 m

MAN - 5G70ME-C9-GI

4.7

A

Page 1 of 8 — 382 vessels

Engine intelligence

## Which engines power the greenest fleets?

The main engine is the single largest CO₂ source on board — typically well over 80% of a ship's emissions come from propulsion. We aggregated this ranking the other way around: every engine design is scored by the measured carbon intensity of the vessels carrying it, licensee-built units merged under their design brand. The verdict from the 2025 data — modern dual-fuel designs like MAN B&W's ME-GI and WinGD's X-DF families, together with EGR/SCR-abated and ultra-long-stroke G-type engines, consistently power the most emission-friendly ships in service.

[Emission-friendly engine ranking](https://www.trusteddocks.com/engines?tab=emissions)

AER (Annual Efficiency Ratio) = annual CO₂ emissions ÷ (deadweight × distance sailed), the IMO carbon-intensity metric used for CII ratings. It is built only from measured CO₂, distance and deadweight — not the self-reported cargo transport-work figure, which is unreliable. Implausible outliers (top 2% per segment) are excluded. Grade A–E reflects each vessel's rank within its segment. Source: [EMSA THETIS-MRV](https://mrv.emsa.europa.eu/).

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