Marine Retrofit ROI Calculator
Retrofit CAPEX • Fuel Savings • Downtime • Net Annual Benefit • Payback • NPV • IRR • Break-Even Savings • Scenario Stress
Marine Retrofit ROI Calculator
Turn a retrofit idea into a transparent investment screen. Quantify fuel savings, other recurring benefits, added operating cost, installation/off-hire exposure, simple and discounted payback, NPV, IRR and the minimum savings needed to justify the project. Advanced mode adds detailed CAPEX and benefit registers, performance degradation, escalation, financing context, annual cash flows and sensitivity analysis.
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Need detailed CAPEX, degradation, financing or multiple benefits? Click Advanced above.Simple is intentionally fast and uses annualized project cash economics rather than a technology-specific performance assumption.ReturnPayback, NPV & IRR
ThresholdBreak-even savings
StressFuel price & performance
Retrofit Economics
t/year attributable to the system affected by the retrofit.
% of baseline annual fuel consumption.
currency/t.
Maintenance, carbon, labor or other recurring value.
Equipment + engineering + installation before off-hire.
days.
years.
%.
Operating Baseline & Savings
%/year.
% of savings performance lost per year.
Financing context only. Project NPV/IRR remain unlevered.
CAPEX Register
Build the effective investment without hiding engineering, class, yard or contingency costs.
| Cost group | Amount |
|---|
Recurring Benefit Register
Use for maintenance savings, carbon/compliance value, labor savings or other non-fuel benefits.
| Benefit type | Year 1 value | Annual escalation % |
|---|
Downtime & Installation
Cost avoided because retrofit is performed during an already-planned yard period.
Market / Performance Stress Cases
| Case | Fuel price Δ % | Savings Δ pts | CAPEX Δ % | Extra off-hire days |
|---|
Decision Readiness
Investment-screen limitation: This tool does not certify retrofit performance, class approval, emissions compliance, vessel integration or tax/accounting treatment. Use vessel-specific measured or validated savings assumptions and a complete yard/OEM/class scope before committing capital.