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 |
|---|---|---|---|---|---|
| 1657 |
FENG XIU HAI
IMO 9747508
|
63,409 | 2016 |
4.3
|
C |
| 1656 |
REIWA
IMO 9740902
|
60,475 | 2016 |
4.3
|
C |
| 1658 |
DESERT SEEKER
IMO 9899208
|
61,000 | 2019 |
4.3
|
C |
| 1655 |
QING YUN SHAN
IMO 9741516
|
63,442 | 2016 |
4.3
|
C |
| 1659 |
YANGTZE SELINDA
IMO 9330812
|
76,499 | 2007 |
4.3
|
C |
| 1654 |
BEGONIA
IMO 9919670
|
61,102 | 2022 |
4.3
|
C |
| 1653 |
TOMINI FELICITY
IMO 9831799
|
63,601 | 2020 |
4.3
|
C |
| 1652 |
ANTE TOPIC
IMO 9737072
|
60,155 | 2017 |
4.3
|
C |
| 1651 |
PATRICIA V
IMO 9453054
|
75,354 | 2010 |
4.3
|
C |
| 1660 |
BULGARIA
IMO 9968475
|
45,174 | 2024 |
4.3
|
C |
| 1664 |
RC SPRING
IMO 9562049
|
93,069 | 2012 |
4.3
|
C |
| 1662 |
CELINA
IMO 9591428
|
79,800 | 2014 |
4.3
|
C |
| 1661 |
MAINA
IMO 9699892
|
63,280 | 2016 |
4.3
|
C |
| 1668 |
DRAFTSLAYER
IMO 9662318
|
66,622 | 2014 |
4.3
|
C |
| 1667 |
ETG SOUTHERN CROSS
IMO 9888015
|
63,482 | 2021 |
4.3
|
C |
| 1666 |
SANTA VENERA
IMO 9977971
|
42,823 | 2022 |
4.3
|
C |
| 1665 |
BALTIC MANTIS
IMO 9729489
|
64,000 | 2015 |
4.3
|
C |
| 1663 |
ALEXIS
IMO 9609158
|
81,622 | 2012 |
4.3
|
C |
| 1669 |
VENUS SKY
IMO 9796951
|
61,588 | 2017 |
4.4
|
C |
| 1671 |
JENS OLDENDORFF
IMO 9852028
|
61,139 | 2015 |
4.4
|
C |
| 1670 |
HARLEQUIN
IMO 9979101
|
40,636 | 2023 |
4.4
|
C |
| 1676 |
LORENZO
IMO 9748124
|
61,250 | 2016 |
4.4
|
C |
| 1675 |
EGRET RIVER
IMO 9708978
|
64,012 | 2017 |
4.4
|
C |
| 1674 |
ULTRA LANIN
IMO 9984493
|
40,622 | 2024 |
4.4
|
C |
| 1673 |
PALONA
IMO 9667112
|
81,676 | 2014 |
4.4
|
C |
| 1672 |
MH SANDEFJORD
IMO 9950442
|
63,145 | 2023 |
4.4
|
C |
| 1678 |
ARAUCARIA
IMO 9882994
|
38,026 | 2020 |
4.4
|
C |
| 1677 |
ARCTURUS
IMO 9221334
|
76,397 | 2001 |
4.4
|
C |
| 1679 |
ZUHAYR
IMO 9317169
|
52,454 | 2007 |
4.4
|
C |
| 1682 |
UNION ODYSSEY
IMO 9644201
|
63,200 | 2013 |
4.4
|
C |
| 1681 |
BELFORCE
IMO 9911678
|
61,224 | 2021 |
4.4
|
C |
| 1680 |
SUNRISE JADE
IMO 9732955
|
63,244 | 2015 |
4.4
|
C |
| 1686 |
FENG HE HAI
IMO 9747522
|
63,244 | 2016 |
4.4
|
C |
| 1685 |
KASHING
IMO 9860295
|
37,440 | 2021 |
4.4
|
C |
| 1684 |
TUO FU 6
IMO 9640671
|
81,588 | 2013 |
4.4
|
C |
| 1683 |
BULK PRIDE
IMO 9440916
|
58,749 | 2008 |
4.4
|
C |
| 1690 |
BELFOREST
IMO 9698185
|
61,252 | 2015 |
4.4
|
C |
| 1691 |
MERCURY ISLAND
IMO 1017543
|
64,095 | 2024 |
4.4
|
C |
| 1689 |
GENCO WASP
IMO 9722015
|
63,389 | 2015 |
4.4
|
C |
| 1688 |
NORVIC SINGAPORE
IMO 9958341
|
39,738 | 2023 |
4.4
|
C |
| 1687 |
TZAREVETZ
IMO 9968504
|
45,210 | 2024 |
4.4
|
C |
| 1695 |
LETO
IMO 9696424
|
63,485 | 2015 |
4.4
|
C |
| 1694 |
BBG LEADER
IMO 9704843
|
63,241 | 2015 |
4.4
|
C |
| 1693 |
ULTRA SAN PEDRO
IMO 1036123
|
40,636 | 2025 |
4.4
|
C |
| 1692 |
UNITY N
IMO 9490466
|
79,642 | 2011 |
4.4
|
C |
| 1700 |
SV ARISTA
IMO 9566564
|
61,649 | 2011 |
4.4
|
C |
| 1699 |
ROSTRUM ASIA
IMO 9910349
|
40,003 | 2021 |
4.4
|
C |
| 1698 |
TRITON
IMO 9642356
|
75,009 | 2012 |
4.4
|
C |
| 1697 |
THOR MENELAUS
IMO 9303924
|
55,710 | 2006 |
4.4
|
C |
| 1696 |
ZHENG RUN
IMO 9593816
|
81,822 | 2013 |
4.4
|
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.