Bulk Carrier Emissions & Retrofit Radar
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 emissions data for reporting year 2025. Lower is greener. Pick a segment and size class to see the greenest vessels first.
CII band distribution
1,301 at D/E4,717 rated vessels · 558 of the D/E set dock within 12 months
Docking pipeline — D/E vessels per quarter
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 | 4,938 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,887 | 2–6% | €300k–900k | — | vendor claim |
| Methanol dual-fuel conversion | 3,009 | 5–15% | €8,000k–20,000k | — | vendor claim |
| Turbocharger cut-out | 2,539 | 1–3% | €80k–250k | — | vendor claim |
| LNG dual-fuel conversion | 2,443 | 15–25% | €15,000k–35,000k | — | vendor claim |
| Rotor sails (per unit) | 2,432 | route-dependent | €1,500k–3,500k | — | vendor claim |
Capex bands are indicative vendor/literature priors. Payback appears once price parameters are configured.
Retrofit opportunity in this segment
Retrofit prospects — worst band first
| Vessel | Band | Age | Drop year |
|---|---|---|---|
| STAITHES · 25-60k | E | 12y | 2026 |
| LANNA NAREE · 25-60k | E | 14y | 2026 |
| MAGNOLIA · 25-60k | E | 15y | 2026 |
| ASIAN PRIDE · 60-100k | E | 9y | 2026 |
| PERSEUS · 60-100k | E | 11y | 2026 |
| # | Vessel | Size (DWT) | Built | Carbon intensity — AER (g CO₂/dwt·nm) | Grade |
|---|---|---|---|---|---|
| 1951 |
FLAT
IMO 9748241
|
63,518 | 2016 |
4.7
|
C |
| 1952 |
CHIOS SUNRISE
IMO 9639907
|
56,589 | 2013 |
4.7
|
C |
| 1953 |
HG BRISBANE
IMO 9530682
|
57,802 | 2010 |
4.7
|
C |
| 1954 |
THOR INSUVI
IMO 9298533
|
52,489 | 2005 |
4.7
|
C |
| 1955 |
CBL SPRING
IMO 9482483
|
53,000 | 2009 |
4.7
|
C |
| 1956 |
WW HANNA
IMO 9573866
|
61,527 | 2011 |
4.7
|
C |
| 1957 |
GIFT
IMO 9625803
|
57,347 | 2012 |
4.7
|
C |
| 1958 |
SLNC SEVERN
IMO 9629988
|
57,888 | 2017 |
4.7
|
C |
| 1959 |
DOLPHIN TRADER
IMO 9989285
|
40,578 | 2024 |
4.7
|
C |
| 1960 |
FEDERAL DART
IMO 9805245
|
34,492 | 2018 |
4.7
|
C |
| 1961 |
FREYA SCHULTE
IMO 9861172
|
39,842 | 2021 |
4.7
|
C |
| 1962 |
KEN FOREST
IMO 1046958
|
40,099 | 2025 |
4.7
|
C |
| 1963 |
BOGDAN
IMO 9905710
|
32,167 | 2021 |
4.8
|
C |
| 1964 |
ZAHAB JAHAN I
IMO 9514377
|
56,172 | 2011 |
4.8
|
C |
| 1965 |
NORD TOPAZ
IMO 9992268
|
39,988 | 2024 |
4.8
|
C |
| 1966 |
GENCO LANGUEDOC
IMO 9490686
|
58,020 | 2010 |
4.8
|
C |
| 1967 |
GENTLE SEAS
IMO 9703514
|
63,350 | 2014 |
4.8
|
C |
| 1968 |
FIVOS
IMO 9611008
|
56,708 | 2013 |
4.8
|
C |
| 1969 |
CLEAR SKY
IMO 9663245
|
63,600 | 2014 |
4.8
|
C |
| 1970 |
ASTAKOS
IMO 9552343
|
58,722 | 2012 |
4.8
|
C |
| 1971 |
KUBRAT
IMO 9621405
|
81,170 | 2012 |
4.8
|
C |
| 1972 |
JAHAN SISTERS I
IMO 9738947
|
61,177 | 2015 |
4.8
|
C |
| 1973 |
AFRICAN TOUCAN
IMO 9801263
|
37,800 | 2014 |
4.8
|
C |
| 1974 |
EVITA
IMO 9604964
|
61,464 | 2012 |
4.8
|
C |
| 1975 |
ARUNA EAGLE
IMO 9494486
|
59,941 | 2012 |
4.8
|
C |
| 1976 |
TAC DAYTONA
IMO 9932115
|
40,217 | 2022 |
4.8
|
C |
| 1977 |
SHIPKA
IMO 9937282
|
32,198 | 2022 |
4.8
|
C |
| 1978 |
EVA MASTER
IMO 9932139
|
40,242 | 2022 |
4.8
|
C |
| 1979 |
TURICUM
IMO 9583110
|
58,097 | 2012 |
4.8
|
C |
| 1980 |
WAIMEA
IMO 9513907
|
55,395 | 2010 |
4.8
|
C |
| 1981 |
TSUNOMINE BULKER
IMO 1014280
|
40,550 | 2025 |
4.8
|
C |
| 1982 |
BULK SACHUEST
IMO 9483231
|
55,618 | 2010 |
4.8
|
C |
| 1983 |
VIGOROUS
IMO 9546239
|
36,204 | 2013 |
4.8
|
C |
| 1984 |
CARAVOS GLORY
IMO 9584322
|
81,672 | 2012 |
4.8
|
C |
| 1985 |
LUYANG SMOOTH
IMO 9538763
|
75,618 | 2011 |
4.8
|
C |
| 1986 |
ELIM COURAGE
IMO 9425760
|
58,163 | 2009 |
4.8
|
C |
| 1987 |
TAXIDIARA
IMO 9331919
|
56,049 | 2007 |
4.8
|
C |
| 1988 |
CATHERINE
IMO 9975193
|
40,544 | 2024 |
4.8
|
C |
| 1989 |
ROSE III
IMO 9592070
|
82,265 | 2010 |
4.8
|
C |
| 1990 |
TOMINI UNITY
IMO 9718167
|
63,590 | 2017 |
4.8
|
C |
| 1991 |
POSEIDON TRADER
IMO 9989326
|
40,585 | 2025 |
4.8
|
C |
| 1992 |
AFRICAN AVOCET
IMO 9738870
|
61,328 | 2015 |
4.8
|
C |
| 1993 |
YASA JASMINE
IMO 9955636
|
40,238 | 2023 |
4.8
|
C |
| 1994 |
STAR SYDNEY
IMO 9699373
|
63,529 | 2015 |
4.8
|
C |
| 1995 |
STAR HARMONY
IMO 9284520
|
52,980 | 2005 |
4.8
|
C |
| 1996 |
NORSE IKUCHI
IMO 9990698
|
40,014 | 2025 |
4.8
|
C |
| 1997 |
FEDERAL PRIDE
IMO 9950612
|
42,686 | 2023 |
4.8
|
C |
| 1998 |
ST PAUL
IMO 9425863
|
57,982 | 2010 |
4.8
|
C |
| 1999 |
CATALINA
IMO 9299604
|
74,288 | 2005 |
4.8
|
C |
| 2000 |
EVA BRIGHT
IMO 9972438
|
40,577 | 2023 |
4.8
|
C |
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.
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.