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 · 519 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 | 4,883 | 5–10% | €400k–1,200k | — | vendor claim |
| Bulbous bow reprofiling | 4,833 | 2–6% | €300k–900k | — | vendor claim |
| Turbocharger cut-out | 3,664 | 1–3% | €80k–250k | — | vendor claim |
| Rotor sails (per unit) | 3,455 | route-dependent | €1,500k–3,500k | — | vendor claim |
| Suction wing sails (per unit) | 3,455 | route-dependent | €1,000k–2,500k | — | vendor claim |
| Methanol dual-fuel conversion | 2,973 | 5–15% | €8,000k–20,000k | — | 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 |
|---|---|---|---|---|---|
| 1343 |
RG LUNA
IMO 9592082
|
82,297 | 2013 |
4.0
|
B |
| 1352 |
LINDEN ARROW
IMO 9552953
|
55,861 | 2013 |
4.0
|
B |
| 1355 |
XIN HAI TONG 807
IMO 9624122
|
81,752 | 2013 |
4.0
|
B |
| 1354 |
AQUAHOLIC
IMO 9363089
|
83,730 | 2008 |
4.0
|
B |
| 1353 |
XIN HAI TONG 808
IMO 9669330
|
76,079 | 2010 |
4.0
|
B |
| 1358 |
BERGE CATHERINE
IMO 9856309
|
63,654 | 2020 |
4.0
|
B |
| 1361 |
ASTRO VEGA
IMO 9720299
|
63,008 | 2015 |
4.0
|
B |
| 1357 |
G PACIFIC
IMO 9494010
|
58,114 | 2010 |
4.0
|
B |
| 1363 |
XIN HAI TONG 801
IMO 9591844
|
81,680 | 2012 |
4.0
|
B |
| 1362 |
GREAT SHANG
IMO 9766906
|
64,942 | 2016 |
4.0
|
B |
| 1356 |
DENSA FLAMINGO
IMO 9603283
|
82,670 | 2010 |
4.0
|
B |
| 1359 |
INES CORRADO
IMO 9602772
|
81,271 | 2012 |
4.0
|
B |
| 1360 |
STAR PISCES
IMO 9715854
|
60,916 | 2015 |
4.0
|
B |
| 1364 |
HF ZHOUSHAN
IMO 9268992
|
75,606 | 2004 |
4.1
|
B |
| 1365 |
TIGER HEBEI
IMO 9712204
|
63,483 | 2015 |
4.1
|
B |
| 1371 |
PSARROS D
IMO 9855642
|
81,961 | 2019 |
4.1
|
B |
| 1370 |
ASIAN SUMMIT
IMO 9725005
|
62,466 | 2017 |
4.1
|
B |
| 1372 |
CHRISTINE OLDENDORFF
IMO 9537898
|
93,077 | 2010 |
4.1
|
B |
| 1369 |
ABDULLAH
IMO 9745598
|
58,068 | 2015 |
4.1
|
B |
| 1368 |
ANGELIC PEACE
IMO 9250177
|
75,007 | 1999 |
4.1
|
B |
| 1367 |
STEFANOS T
IMO 9583744
|
80,499 | 2011 |
4.1
|
B |
| 1366 |
PERSEAS
IMO 9650638
|
75,033 | 2013 |
4.1
|
B |
| 1376 |
HALONA
IMO 9286920
|
75,776 | 2005 |
4.1
|
B |
| 1375 |
XIN HAI TONG 63
IMO 9592721
|
57,023 | 2011 |
4.1
|
B |
| 1377 |
TOMINI DESTINY
IMO 9718155
|
63,590 | 2017 |
4.1
|
B |
| 1374 |
EPIC SERENITY
IMO 9935442
|
82,310 | 2022 |
4.1
|
B |
| 1379 |
YASA JUPITER
IMO 9848132
|
61,077 | 2019 |
4.1
|
B |
| 1378 |
ZHENG RONG
IMO 9593828
|
81,793 | 2013 |
4.1
|
B |
| 1373 |
POPI S
IMO 9527233
|
80,337 | 2012 |
4.1
|
B |
| 1383 |
PHILHOKUSAI
IMO 9549451
|
61,197 | 2022 |
4.1
|
B |
| 1382 |
STAR ANGELINA
IMO 9310630
|
82,981 | 2006 |
4.1
|
B |
| 1381 |
FEDERAL TOKORO
IMO 9725445
|
55,543 | 2015 |
4.1
|
B |
| 1380 |
JAL MURARI
IMO 9849564
|
81,993 | 2019 |
4.1
|
B |
| 1384 |
SUN VIL II
IMO 9643178
|
56,042 | 2013 |
4.1
|
B |
| 1386 |
BUNA ARROW
IMO 9687071
|
55,967 | 2014 |
4.1
|
C |
| 1389 |
W-SKY
IMO 9476666
|
92,929 | 2011 |
4.1
|
C |
| 1392 |
SEVA
IMO 9336000
|
76,948 | 2007 |
4.1
|
C |
| 1388 |
WECO HOLLI
IMO 9929699
|
61,275 | 2020 |
4.1
|
C |
| 1394 |
ULTRA INFINITY
IMO 9767481
|
61,188 | 2014 |
4.1
|
C |
| 1393 |
GRETKE OLDENDORFF
IMO 9681962
|
80,444 | 2015 |
4.1
|
C |
| 1387 |
TAHITI ONE
IMO 9597032
|
81,291 | 2012 |
4.1
|
C |
| 1385 |
VIENNA
IMO 9403205
|
58,736 | 2009 |
4.1
|
C |
| 1391 |
AGRAFA
IMO 9947304
|
63,564 | 2024 |
4.1
|
C |
| 1390 |
PAN IMPERIAL
IMO 9699361
|
63,567 | 2016 |
4.1
|
C |
| 1400 |
TOMINI KAIMAI
IMO 9709269
|
40,112 | 2013 |
4.1
|
C |
| 1399 |
COMMON ATLAS
IMO 9669378
|
62,985 | 2014 |
4.1
|
C |
| 1398 |
AVAX
IMO 9289312
|
75,399 | 2006 |
4.1
|
C |
| 1397 |
AMANI
IMO 9729910
|
61,436 | 2016 |
4.1
|
C |
| 1396 |
KIRA OLDENDORFF
IMO 9867566
|
81,290 | 2020 |
4.1
|
C |
| 1395 |
TIGER LILY
IMO 9744984
|
81,886 | 2016 |
4.1
|
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.