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Compare operators, 2025
Pick a company or group, then the competitors to hold it against, or compare verifiers. Every figure comes from the public THETIS-MRV reports for EU and EEA voyages.
- Synergy Marine Shanghai Ltdyour view
Side by side
All 2025 reports of each operator, across every ship type. Change is against 2024 where the operator reported then.
| Synergy Marine Shanghai Ltd | |
|---|---|
| Ships | 7 |
| CO₂ emitted | 25 kt+112.2% |
| Fuel kg/nm | 64 |
| Average speed | 11.0 kn |
| CO₂ at berth | 4.2% |
| Ships burning LNG | 0 |
| Ships using alternative fuel | 0 |
| Main segment | Bulk carrier |
Fuel per mile and speed depend on ship size and type; compare them within a segment below.
Segment by segment
Efficiency only compares within a ship type. Each row gives the CO₂ per transport work of an operator's typical (median) ship, and the bar sets it against the typical ship of the whole segment: to the left of the line it emits less CO₂ for the same transport work, to the right more.
Bulk carrier
CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 7.9
- Synergy Marine Shanghai Ltd7.0 (−12% vs median)
- ← bettersegment medianworse →
| Shipsin bulk carrier | CO₂ per transport work (cargo)g/t·nm, median ship | vs bulk carrier medianlower is better | Fuel kg/nmfleet avg. | Average speedknots at sea | Hours at seaper ship per year | CO₂ at berthshare | LNG / alt. fuelships | |
|---|---|---|---|---|---|---|---|---|
| Synergy Marine Shanghai Ltd | 7 | 7.0 | −12% | 64 | 11.0 | 1,614 | 4.2% | – |
| Segment median | 7.9 | 0% |
Verification and monitoring
Who verifies each operator's reports, and which MRV methods its ships use to measure fuel (share of reports).
| Verifiers (ships) | A · delivery notes | B · tank monitoring | C · flow meters | D · direct | |
|---|---|---|---|---|---|
| Synergy Marine Shanghai Ltd | ClassNK (7) | 29% | 86% | 100% | 0% |
Synergy Marine Shanghai Ltd: ships furthest from their peers
Each ship's CO₂ per transport work against the median ship of its segment, as on the ship's own page. +100% means the ship emits twice as much CO₂ for the same transport work as the median ship. The cost of the gap compares each ship with ships of its size, as everywhere on the site. Ro-pax ships show passenger figures, with freight underneath.
| Ship | IMO | Segment | CO₂ per transport work | Segment median | vs median | Average speed | CO₂ | Allowances | Cost of gap |
|---|---|---|---|---|---|---|---|---|---|
| JNS SEA | 1038391 | Bulk carrier | 9.3 g CO₂/t·nm | 7.9 | +18% | 11.1 | 5,788 t | €190k | €0 |
| ALLIS SERENE | 9425851 | Bulk carrier | 9.1 g CO₂/t·nm | 7.9 | +16% | 8.4 | 1,350 t | €0 | €0 |
| JNS FRIENDSHIP | 1061520 | Bulk carrier | 9.1 g CO₂/t·nm | 7.9 | +15% | 10.1 | 3,463 t | €105k | €0 |
| JNS PEACE | 1068994 | Bulk carrier | 7.0 g CO₂/t·nm | 7.9 | −12% | 10.9 | 6,825 t | €188k | €0 |
| JNS OCEAN | 1044508 | Bulk carrier | 6.8 g CO₂/t·nm | 7.9 | −14% | 12.6 | 4,769 t | €136k | €0 |
| JNS PROSPERITY | 1068982 | Bulk carrier | 6.3 g CO₂/t·nm | 7.9 | −20% | 11.5 | 1,769 t | €70k | €0 |
| EASTERN HEATHER | 9948023 | Bulk carrier | 3.1 g CO₂/t·nm | 7.9 | −61% | 11.2 | 669 t | €18k | €0 |
30 of 7 reports shown. A high ratio can mean an older or faster-sailing ship, short trades with much time manoeuvring, or part-loaded voyages; it marks where to look first.
Notes
- Companies are ISM companies (Document of Compliance holders) as named in THETIS, usually the ship manager.
- Groups combine ISM companies trading under the same name, and differently named companies only where a public source shows common ownership (linked in the member list). If a company is in the wrong group, tell us at info@navalyze.com.
- Efficiency figures use full-year reports with fuel; totals include part-year reports.
- Euro figures use the EUA price set at the top of the page.
- Verifier names vary by entity and year (for example DNV AS and DNV Hellas); they are rolled up into one brand. A verifier's figures cover the ships whose 2025 report it verified.