Fuel Spread • Eligible HSFO Burn • Washwater Restrictions • Scrubber OPEX • Payback • NPV • IRR • Break-Even Spread
Ship Scrubber ROI Calculator
Test whether an exhaust gas cleaning system can earn back its installed cost from the HSFO versus compliant-fuel price spread. Simple mode gives a fast investment screen. Advanced mode adds technical availability, washwater restrictions, installation off-hire, operating penalties, major service, carbon cost on extra fuel, fuel-price escalation and downside scenarios.
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Need washwater restrictions, fuel-price escalation, major-service cycles, installation off-hire or downside cases? Click Advanced above.Simple treats the entered annual operating days as scrubber-eligible days and keeps the investment decision transparent.Fuel economicsHSFO vs compliant spread
InvestmentPayback, NPV & IRR
ThresholdBreak-even spread
Scrubber Investment
years
%
Fuel Spread & Annual Use
MT/day while scrubber is in use
currency/MT
currency/MT
% additional fuel-equivalent load
currency/MT scrubbed fuel
Project CAPEX & Installation
%
days
Annual Fuel Opportunity
MT/day
%
% of otherwise available use
%/year
%/year
Scrubber Operating Cost
%
currency/MT scrubbed
currency/MT scrubbed
%/year
days/year
years
currency/tCO₂
tCO₂/MT
%
Investment Analysis
years
%
Stress Cases
Each row independently changes the base case and recalculates project economics.
| Case | Fuel spread Δ% | Eligible use Δ% | CAPEX Δ% | OPEX Δ% |
|---|
Scrubber Investment Readiness
Planning limitation: This tool models scrubber economics, not regulatory approval. Actual benefit depends on HSFO availability, local washwater rules, engine fuel compatibility, fuel quality, scrubber uptime, electrical load, chemicals, waste/sludge handling, corrosion, monitoring, charterparty allocation, class/flag approval and future regulation.