Marine Generator Load Sharing, Fuel Consumption & N-1 Capacity Tool
Load Sharing • Spinning Reserve • Fuel Burn • SFOC • Dispatch Optimisation • N-1 Generator Capacity • Daily Load Profile
Marine Generator Load Sharing, Fuel Consumption & N-1 Capacity Tool
Screen a ship service generator plant as an operating system, not just installed kW. Simple mode checks present load sharing, fuel use and loss-of-one-set loading. Advanced models individual generator SFOC curves, weighted load sharing, multi-phase load profiles, spinning reserve, N-1 survival and fuel-optimal generator combinations.
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Eight inputs, focused on the present generator lineup.The preferred minimum/maximum load bands are operating targets entered by the user, not universal class limits. The N-1 result assumes loss of one of the online identical sets.SharingkW & load % per set
Fuelkg/h & t/day
RedundancyN-1 loading & reserve
Present Operating Point
kW on the generator bus.
Identical sets assumed in Simple mode.
kW electrical output per set.
g/kWh. Use engine/OEM data when available.
% user-entered operating target.
% user-entered normal operating target.
% user-entered contingency criterion.
hours for fuel-total calculation.
Plant Operating Targets
% of online generator capacity.
% of remaining individual generator rating.
kg/L for indicative L/h only.
% required for candidate dispatch combinations.
Generator Register
SFOC values are entered at 25%, 50%, 75% and 100% electrical load and linearly interpolated. Online units form the current plant. Available units are also considered by the dispatch optimiser.
| Use | Available? | Online? | Generator | Rated kW | Share weight | Min preferred % | Max continuous % | SFOC 25% | SFOC 50% | SFOC 75% | SFOC 100% |
|---|
24-Hour / Voyage Load Profile
Profile rows calculate energy and fuel by operating phase. The current online lineup is used for the detailed row-by-row ledger; the optimiser also checks alternative available generator combinations at each load.
| Use | Operating phase | Hours | Bus load kW | Essential load kW |
|---|
Power-Management / Data Checks
Engineering boundary: this is a steady-state operating and planning tool. It does not replace generator transient-response studies, motor-start voltage-dip analysis, short-circuit/protection studies, reactive-power sharing checks, blackout recovery analysis, OEM minimum-load guidance or class approval.
Technical basis: IEC 60092-201 addresses ship electrical system design and IEC 60092-301:2025 covers shipboard generators and motors. ABS rules require sufficient generation under normal seagoing conditions with one generator in reserve and also require motor-starting capability to be considered. Parallel generator operation requires both active-power (kW) and reactive-power (kVAr) sharing; this tool models active-power sharing and fuel use, while reactive sharing remains an external control/protection check.
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