Bulk carrier · Cyprus flag · built 2015
CAROLINA BOLTEN: CO₂ emissions 2018–2025
IMO 9718454 EU ETS8 reporting years
- CO₂ reported 2025
- 2,538 t
- Fuel burned
- 811 t
- Distance
- 9,322 nm
- Time at sea
- 839 h
- Emitted at berth
- 11% of total
- Share of year under way
- 10%
- Gross tonnage
- 24,198
CAROLINA BOLTEN against its type
Built in 2015, it is 3 years newer than the median bulk carrier on this register, which was built in 2012 (6,882 vessels with a known build year). At 24,198 gross tonnage it is smaller than 78% of the other 6,571 bulk carriers with a recorded tonnage. It is one of 212 bulk carriers here under the Cyprus flag, 2.6% of the 8,138 on the register. Its MRV returns name it CAROLINA BOLTEN for 2018–2023 and UBC THESSALONIKI for 2024–2025. The reported port of registry changed: Madeira (2020–2023), then LIMASSOL (2024–2025).
Its 2,538 t of CO₂ for 2025 is 22% below the median of 3,238 t among the 3,732 bulk carriers on this register that reported for 2025. Per nautical mile it emitted 272.2 kg CO₂, close to the type median of 260.7 kg. It logged 839 hours at sea against a median of 1,199 hours for its type that year. 11.1% of its 2025 emissions were at berth; the median for bulk carriers was 3.7%. Across 8 years with reported emissions, the highest was 2021 (9,889 t) and the lowest 2025 (2,538 t). Its efficiency percentile within the type went from 80 in 2018 to 95 in 2025 (lower is more efficient). Of the 5 comparable vessels listed below with a 2025 return, 4 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 2,538 | 811 | 9,322 | 839 | 283 | 272.2 | 15.4 | 95 |
| 2024 | 7,217 | 2,295 | 29,579 | 2,764 | 450 | 244.0 | 9.6 | 69 |
| 2023 | 4,053 | 1,288 | 15,038 | 1,552 | 374 | 269.5 | 13.4 | 89 |
| 2022 | 5,587 | 1,778 | 22,199 | 1,979 | 310 | 251.7 | 10.2 | 68 |
| 2021 | 9,889 | 3,151 | 37,776 | 3,381 | 726 | 261.8 | 12.4 | 85 |
| 2020 | 3,828 | 1,222 | 17,084 | 1,723 | 284 | 224.1 | 9.1 | 63 |
| 2019 | 4,802 | 1,540 | 20,481 | 2,006 | 38 | 234.4 | 7.7 | 44 |
| 2018 | 3,535 | 1,131 | 13,045 | 1,707 | 257 | 271.0 | 11.3 | 80 |
Vessel particulars
- IMO number
- 9718454
- Previously reported as
- UBC THESSALONIKI
- Ship type
- Bulk carrier
- Gross tonnage
- 24,198
- Year built
- 2015
- Flag state
- Cyprus per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Portugal. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- LIMASSOL MRV 2025
- Technical efficiency (design)
- EEXI (5.05 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-13
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 3,074 of 3,241 qualifying bulk carriers by EEOI, at the 95th percentile. The dashed line is the type median, 7.6; this vessel reported 15.4.
EEOI divides emissions by transport work, which for this vessel and year was 165,106,701 tonne-miles over 9,322 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 28.2% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 64.8% while distance sailed fell 68.5%and CO₂ per nautical mile rose 11.6%.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
- 2,578 t
- Methane (CH₄)
- 0.04 t
- Nitrous oxide (N₂O)
- 0.15 t
- Under EU ETS
- 1,251 t, 49% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 8 MRV reporting years, an efficiency ranking, 3 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.