Should Your Next Ship Still Be LNG Dual-Fuel? 10 Numbers to Run Before Signing a Newbuild Contract
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Should Your Next Ship Still Be LNG Dual-Fuel? 10 Numbers to Run Before Signing a Newbuild Contract
Höegh Autoliners ordering six more LNG dual-fuel Aurora-class car carriers is the kind of signal that keeps the LNG argument alive. Not as a slogan. As a spreadsheet. The owner’s question is no longer whether LNG is a bridge fuel or a stranded asset. The question is whether this specific ship, on this specific trade, can earn back the tank space, FGSS cost, methane-slip exposure and future-fuel risk over a 20-year commercial life.
The decision in two minutes
LNG dual-fuel still has a serious case when route, customer, fuel supply, low-slip engine choice and future low-GHG methane access line up. It becomes expensive optionality when the ship mostly burns fuel oil while carrying LNG tanks, cryogenic systems and maintenance cost.
The four numbers that change fastest
- LNG versus VLSFO/MGO price spread.
- Methane slip and FuelEU treatment.
- Bio-LNG or e-methane availability.
- Year-10 and year-15 resale value.
Three gates before signing
The trading pattern supports reliable bunkering and enough LNG operating share to matter.
Engine choice, verified factors and operating profile do not erase the compliance advantage.
The asset can defend resale value after FuelEU tightens and charterers compare fuel pathways harder.
The buying test: LNG dual-fuel is not one line in the engine specification. It is a full ship system: tanks, bunker station, FGSS, pumps, vaporizers, cryogenic piping, valves, ESD, gas detection, ventilation, controls, crew training, class approval and lifetime service support.
10 numbers to run before signing
| Number | Owner calculation | Commercial meaning | Risk flag |
|---|---|---|---|
| 1. LNG operating share | Percent of annual energy expected to come from LNG. | Low use share makes the owner pay for a system that barely earns. | Route reality |
| 2. Fuel price spread | Annual fuel volume × LNG use share × LNG savings per ton equivalent. | The spread can carry the investment, but only if the ship can bunker reliably. | Fuel desk |
| 3. Methane-slip exposure | Engine slip profile × LNG energy × CO₂e or penalty proxy. | Two-stroke high-pressure, two-stroke low-pressure and four-stroke engines can produce different outcomes. | Engine choice |
| 4. Tank-space penalty | Lost cargo, lost lane flexibility, reduced range value or layout compromise. | LNG storage needs more space than fuel oil and can affect the revenue side of the ship. | Cargo value |
| 5. FGSS and cryogenic capex | Tanks + FGSS + bunker station + vaporizers + piping + safety systems + controls. | The real premium is the whole gas-fuel architecture, not just the dual-fuel engine. | Capex stack |
| 6. Bunkering coverage | Reliable LNG ports on the actual trade ÷ ports where the ship needs energy. | A global LNG bunker map is less useful than one honest route-by-route fuel plan. | Port fit |
| 7. Bio-LNG and e-methane pathway | Available low-GHG methane volume × verified GHG benefit × compliance or customer value. | The longer-life LNG case increasingly depends on drop-in low-GHG methane, not fossil LNG alone. | Pathway value |
| 8. FuelEU and EU ETS exposure | EU energy × GHG-intensity gap × penalty, pooling value or allowance value. | FuelEU counts lifecycle CO₂, methane and nitrous oxide, so the advantage changes over time. | Regulation curve |
| 9. Residual value | Year-10 and year-15 resale premium or discount versus other fuel-ready ships. | Secondhand buyers may reward LNG capability or discount stranded tank and methane risk. | Exit price |
| 10. Retrofit flexibility | Space, structure, power and tank options preserved for later systems. | The best 2027 contract does not trap the ship in one fuel answer forever. | Future option |
Where LNG still looks strong
| Ship profile | LNG case | Main caution | Decision posture |
|---|---|---|---|
| PCTC, RoRo, ferry or feeder | Repeat trades can support fuel planning, customer value and bunker reliability. | Tank location and methane-slip profile still decide the long-term score. | Strong candidate |
| Large container ship on hub routes | Scale and major-port bunkering can help the business case. | Cargo-space impact and future fuel uncertainty need a full TCO model. | Model carefully |
| Tramp bulker or tanker | Can work with charterer support or known trading lanes. | Uncertain routing can reduce LNG use share and damage payback. | Use-share test |
| High-EU exposure ship | FuelEU and EU ETS value can matter early, especially with low-slip engines. | Targets tighten, and methane treatment becomes more important after 2030. | Slip-sensitive |
| Long-life strategic asset | Works best as part of a staged LNG, bio-LNG and e-methane pathway. | Owner needs credible certificates, suppliers and customer demand. | Pathway candidate |
Supplier spend behind the decision
Demand trigger: engine demand, gas pressure, redundancy and reserve margin need to be proven.
Demand trigger: the owner needs range without surrendering too much cargo value.
Demand trigger: the yard needs class-ready fuel transfer and safety integration.
Demand trigger: methane slip becomes a compliance and residual-value issue.
Demand trigger: fossil LNG alone may not protect the ship through its full commercial life.
Demand trigger: the board needs to compare LNG, LNG-ready, methanol-ready and conventional designs.
Before the newbuild specification gets locked, estimate LNG engine gas demand, pump capacity, vaporizer duty and reserve margin.
Open LNG FGSS Tool →LNG dual-fuel newbuild calculator
2027 LNG Newbuild Decision Screen
Use this quick screen to test whether the LNG dual-fuel premium is supported by fuel savings, regulatory value, customer value and residual value.
Adjust the inputs to test whether LNG dual-fuel earns its premium.
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