CAP SAN JUAN: CO₂ emissions 2019–2025

CAP SAN JUAN against its type

Built in 2015, it is 7 years newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 118,615 gross tonnage it is larger than 84% of the other 3,000 container ships with a recorded tonnage. It is one of 119 container ships here under the Marshall Islands flag, 3.4% of the 3,495 on the register. The same builder is recorded for 660 other vessels here, 231 of them container ships. Its MRV returns name it CAP SAN JUAN for 2019–2024 and MAERSK SAN JUAN for 2025. The returns for 2019–2025 all give Majuro as port of registry.

Its 9,648 t of CO₂ for 2025 is 41% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 754.8 kg CO₂, 38% above the type median of 545.6 kg. It logged 914 hours at sea against a median of 3,155 hours for its type that year. 1.6% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 6 years with reported emissions, the highest was 2024 (53,899 t) and the lowest 2022 (1,878 t). Its efficiency percentile within the type went from 15 in 2019 to 13 in 2025 (lower is more efficient). Of the 8 sister ships listed below with a 2025 return, 3 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2019–2025

Vessel particulars

IMO number

9717204

Previously reported as

MAERSK SAN JUAN

Ship type

Container ship

Gross tonnage

118,615

Length overall

331.1 m

Year built

2015

Flag state

Marshall Islands per EU MRV 2025

Builder

Hanwha Ocean

Port of registry

MAJURO MRV 2025

Technical efficiency (design)

EEXI (8.93 gCO₂/t·nm)

Verifier

DNV, Germany

Accreditation

VS-16026-01

Compliance document issued

2026-02-20

Compliance document expires

2027-06-30

Efficiency against its own type2025

Position 246 of 1,838 qualifying container ships by EEOI, at the 13th percentile. The dashed line is the type median, 14.2; this vessel reported 7.4.

EEOI divides emissions by transport work, which for this vessel and year was 1,305,491,204 tonne-miles over 12,782 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 69.8% lower than in 2019, for EU/EEA voyages only. No return is recorded for 2021, so the series has gaps.

From 2024 to 2025, emissions fell 82.1% while distance sailed fell 81.0%and CO₂ per nautical mile fell 5.8%.That points mainly to how much the vessel sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent

9,799 t

Methane (CH₄)

0.15 t

Nitrous oxide (N₂O)

0.56 t

Under EU ETS

5,102 t, 53% of total

Sources and how to read this

• Emissions: EU MRV publication (THETIS-MRV), reporting years 2019–2025, published by the European Commission.
• Vessel particulars: Wikidata (CC0).

This page draws on 6 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, a licensed photograph, a sanctions listing and US port state inspections.

Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.

Comparable vesselssister ships and nearest by tonnage

• APL PHOENIX sister · 2013 · · 17,004 t · 702.1 kg/nm
• MADISON MAERSK sister · 2014 · · 50,529 t · 971.4 kg/nm
• MAJESTIC MAERSK sister · 2013 · 35,835 GT · 50,110 t · 992.7 kg/nm
• MARY MAERSK sister · 2013 · 35,835 GT · 53,831 t · 986.2 kg/nm
• MARIE MAERSK sister · 2013 · 35,835 GT · 50,744 t · 925.9 kg/nm
• MAERSK LANCO sister · 2013 · 89,505 GT · 25,643 t · 649.5 kg/nm
• MAERSK LAMANAI sister · 2013 · 89,505 GT · 53,865 t · 765.8 kg/nm
• MAERSK LABREA sister · 2013 · 89,505 GT · 35,552 t · 661.0 kg/nm