Hotel Load Profile, Generator Cap, Battery MW/MWh, SOC Dispatch, Recharge Headroom, Generator Starts, Throughput, Degradation & Lifecycle NPV

Cruise Ship Hotel Load, Peak Power & Battery Peak-Shaving Tool

Screen whether a battery can absorb short cruise-hotel load peaks without confusing power capacity with energy capacity. Simple mode checks one representative peak event. Advanced mode dispatches the battery sequentially through an ordered daily hotel-load profile, tracks SOC, recharge headroom, equivalent cycles and the economic value of moving energy from expensive peak periods into lower-cost recharge windows.

Data type
Currency
Currency selection changes display only. No exchange-rate conversion is performed.
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Need a full daily dispatch instead of one peak? Click Advanced above.Advanced walks the battery through each hotel-load period in order, discharges above the period generator/shore cap, recharges only when headroom exists, and shows whether the battery returns to its starting SOC by the end of the modeled day.

Fast Hotel-Peak Battery Screen

Simple mode models one repeated peak event. The usable SOC window is applied directly to installed MWh, while round-trip efficiency is used only for recharge-energy accounting.

MW.
MW above normal hotel load.
MW.
minutes.
MW left on generators or shore connection.
MWh.
% of installed energy available for peak shaving.
MW AC output.
% used for recharge-energy estimate.

Battery Dispatch Basis

MWh nameplate.
% available capacity.
MW.
MW.

Ordered 24-Hour Hotel-Load Profile

Rows run in the order shown. When total demand exceeds the row cap, the battery discharges. When demand is below the cap, spare headroom can recharge the battery. Period names are not included in Tool Data.

PeriodHoursHotel MWOther MWGenerator / shore cap MWMarginal source cost / MWh

Battery Economics

Selected currency / modeled day when battery discharges.
Selected currency / MWh AC discharged.

Peak-Shaving Readiness

Peak-shaving planning screen only: this tool does not replace an approved electric-load analysis, generator stability study, PMS/EMS study, converter/short-circuit/protection study, battery safety assessment, fire-risk review or class-approved operating philosophy. Peak shaving shifts energy in time; it does not inherently reduce total vessel energy consumption and can increase gross generation because of battery losses.
Battery / hybrid context: DNV notes that marine batteries can support operational concepts such as covering peak loads to avoid starting additional generators, and its current rules include battery safety/power requirements. The July 2026 DNV rule edition also introduced a Battery ready notation for vessels prepared for batteries as part of the main onboard energy installation. ABS requirements for hybrid and all-electric power systems address integration of batteries and other non-conventional sources with conventional generation, including system design, safety and automation. DNV Battery & Hybrid Ships · DNV July 2026 Rules · ABS Hybrid & All-Electric Requirements
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