Chemical Tanker 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 2024. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2024)

#126 of 1,350 chemical tankers

CO₂ intensity

5.2 g CO₂/dwt·nm

vs segment average (9.91)

-47% greener

Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

CII band distribution

414 at D/E

A 388B 445C 451D 293E 121

1,698 rated vessels · 175 of the D/E set dock within 12 months

Docking pipeline — D/E vessels per quarter

'27 Q1

'27 Q2

'27 Q3

'27 Q4

'28 Q1

'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	1,299	5–10%	€400k–1,200k	—	vendor claim
Turbocharger cut-out	968	1–3%	€80k–250k	—	vendor claim
Bulbous bow reprofiling	929	2–6%	€300k–900k	—	vendor claim
Rotor sails (per unit)	882	route-dependent	€1,500k–3,500k	—	vendor claim
Suction wing sails (per unit)	882	route-dependent	€1,000k–2,500k	—	vendor claim
Methanol dual-fuel conversion	696	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

262

D/E vessels with at least one eligible measure

€693–1,706M

capex range, top measure per vessel (262 of 262 with computable scaling)

0.09–0.20 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
MEHTAP · 25-60k	E	18y	2026	96%	Jul 2026
MARIA IMMACULATA · <25k	E	14y	2026	91%	Mar 2027
HARBOUR PROGRESS · <25k	E	16y	2026	73%	Aug 2030
HERCULES SKY · <25k	E	5y	2026	73%	Apr 2031
NAVE ATRIA · 25-60k	E	14y	2026	66%	Apr 2027

See all 1,698 rated chemical tankers with exposure and dock windows. Sign in →

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

1,378

vessels ranked

3.64

greenest (g CO₂/dwt·nm)

8.79

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
104	YASA VEGA IMO 9888352	50,215	2021	183 m	MAN - 6G50ME-C9	5.1	A
102	SILVER ELLIE IMO 9692387	49,950	2015	183 m	MAN - 6G50ME-B9	5.1	A
101	NAVIG8 ESTELLE IMO 9973925	49,155	2024	183 m	6G50ME-C9-HPSCR	5.1	A
103	HAFNIA MIKALA IMO 9732709	49,999	2017	183 m	Hudong Heavy Machinery - 6S50ME-B9.2 (Tier II)	5.1	A
108	SEADRIVE IMO 9934137	50,394	2021	183 m	MAN - 6G50ME-C9	5.2	A
107	TAKAROA SUN IMO 9850202	49,849	2019	183 m	Hyundai - 6G50ME-C9-LGIM	5.2	A
106	SOLAR RUBA IMO 9907768	49,367	2021	183 m	MAN - 6G50ME-C9	5.2	A
105	CASTARA IMO 9834155	50,620	2019	186 m	Hyundai - B&W 6G50ME-C9.5(TIER II)	5.2	A
109	CHIOS STAR IMO 9827566	50,506	2018	183 m	MAN - 6G50ME-C9	5.2	A
111	PS ROMA IMO 9510462	51,063	2011	183 m	MAN - 6S60MC-C	5.2	A
110	MATRAH IMO 9405849	51,021	2008	183 m	MAN - 6S50MC-C	5.2	A
112	MADHA SILVER IMO 9718818	45,923	2016	183 m	Hyundai - 6G50ME-B9	5.2	A
113	CLEAROCEAN MAGIC IMO 9849382	49,995	2019	183 m	STX - 6G50ME-C9	5.2	A
115	LARGO DESERT IMO 9828912	49,703	2018	183 m	Hyundai - 6G50ME-B9	5.2	A
114	HIGH CHALLENGE IMO 9740586	49,990	2017	183 m	Hyundai - 6G50ME-B9	5.2	A
116	NORD SWIFT IMO 9692155	49,579	2015	183 m	MAN - 6S50MC-C	5.2	A
117	ELKA ATHINA IMO 9249116	101,970	2004	244 m	BRODOSPLIT - 6S60MC	5.2	A
118	AMIRANTE IMO 9629706	49,994	2013	183 m	STX - 6 S 50 MC-C	5.2	A
119	STI MAVERICK IMO 9833589	49,999	2019	183 m	Hyundai - 6G50ME-C9	5.2	A
120	SKYLIGHT IMO 9396737	50,926	2008	183 m	MAN - 6S50MC-C	5.2	A
122	JUPITER STAR IMO 9919632	50,434	2021	183 m	Hyundai Heavy Industries Co. Ltd. 6G50ME-C9.6-HPSCR	5.2	A
121	STI MAXIMUS IMO 9854741	49,999	2020	183 m	Hyundai - 6G50ME-C9	5.2	A
125	AMFITRION IMO 9724623	50,102	2017	183 m	Doosan - 6RT-flex50	5.2	A
124	NORD VANTAGE IMO 9830252	50,550	2018	183 m	Hyundai - 6G50ME-B9	5.2	A
123	DORIC BREEZE IMO 9637129	51,565	2013	183 m	Hyundai - 6S50MC-C8	5.2	A
126	STI BRONX IMO 9706839	49,990	2015	183 m	MAN - 6S50MC-C8	5.2	A
127	SEAWAYS OLIVE IMO 9354909	49,999	2008	183 m	Hyundai - 7S50MC-C	5.3	A
128	MP MR TANKER 1 IMO 9472763	51,755	2011	183 m	HHI - 6S50MC-C7	5.3	A
130	PAG IMO 9440514	49,990	2015	183 m	MAN - 6S50ME-B9	5.3	A
129	TABLE BAY IMO 9974979	50,000	2024	175 m	6G50ME-C9-HPSCR	5.3	A
133	CAPE ANDIAMO IMO 9995428	50,502	2024	183 m	MAN-B&W 6G50ME-C9	5.3	A
132	MURMURE IMO 9939618	49,999	2025	183 m	MAN - 6G50ME-C9	5.3	A
131	HAFNIA LEO IMO 9476824	49,999	2013	183 m	MAN - 6S50MC-C	5.3	A
134	HAFNIA LIBRA IMO 9617959	52,385	2013	183 m	DALIAN MARINE - 6S50MC-C	5.3	A
136	ACACIA IMO 9747352	49,999	2017	183 m	Hyundai - 6S50MC-B9	5.3	A
135	ARDMORE SEAFOX IMO 9708215	49,999	2015	183 m	STX - 6S50ME-B9	5.3	A
137	ZOILO IMO 9704441	49,990	2015	183 m	HHI - 6G50ME-B9.3	5.3	A
138	LEIKANGER IMO 9725304	49,999	2016	186 m	Hyundai - 6G50ME-B9.3-LGI (Tier-II)	5.3	A
139	CLEAROCEAN MESQUITE IMO 9919163	49,999	2021	183 m	Hyundai Heavy Industries Co. Ltd. 6G50ME-C9-HPSCR	5.3	A
140	CS ZHE JIANG IMO 9899478	47,497	2022	183 m	DALIAN MARINE - 6G50ME-C9	5.3	A
141	MERSEY IMO 9865752	49,999	2019	183 m	Hyundai - 6G50ME-C9	5.4	A
142	LARGO ENERGY IMO 9683984	49,973	2014	183 m	MAN - 6G50ME-B9	5.4	A
143	ION M IMO 9864344	49,999	2019	183 m	Hyundai - 6G50ME-C9	5.4	A
144	DEE4 MAHOGANY IMO 9942500	44,999	2022	183 m	6G50ME-C9-HPSCR	5.4	A
145	PACIFIC BLUE IMO 9867798	49,995	2020	183 m	STX - 6G50ME-C9 Tier II	5.4	A
148	SEAWAYS WAVE IMO 9387918	51,549	2009	183 m	STX - 6 S 50 MC-C	5.4	A
147	NAVIG8 EXECUTIVE IMO 9973937	49,143	2024	183 m	6G50ME-C9-HPSCR	5.4	A
146	POLARIS IMO 9682459	49,126	2014	183 m	Hyundai - 6G50ME-B9	5.4	A
149	NORD VENTURA IMO 9910337	49,999	2021	183 m	Hyundai - 6G50ME-C9	5.4	A
150	ARDMORE SEAVANGUARD IMO 9637088	51,800	2014	183 m	Doosan - 6S50ME-B MK9.2	5.4	A

Page 3 of 27 — 1,350 vessels

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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 2024 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

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.