Ship Universe Maritime Tool

Ship Scrubber ROI Calculator

Calculate scrubber payback, annual fuel savings, ROI, NPV and IRR from the price spread between high-sulfur fuel and compliant fuel. Model installation cost, fuel consumption, scrubber operating costs, power penalty, washwater restrictions, downtime and long-term fuel prices.

Fuel Spread
Compliant fuel price minus high-sulfur fuel price
Payback
Installed scrubber investment divided by modeled net savings
Investment Return
NPV, IRR, discounted payback and break-even fuel spread

Scrubber Investment

Enter the total installed cost of the scrubber project.

$
years
%

Fuel Consumption & Price Spread

Model the fuel that would otherwise need to be replaced by compliant fuel if the scrubber were unavailable.

MT/day
days
$ /MT
$ /MT
%
Additional fuel associated with scrubber pumps, fans and electrical load.
$ /MT fuel
$

Scrubber Project CAPEX

Build installed investment cost from equipment, engineering, shipyard work and installation off-hire.

$
$
$
$
%
days
$ /day
$

Annual Fuel Opportunity

Availability and washwater restrictions reduce the amount of fuel that can economically benefit from the scrubber.

MT/day
days/year
%
%
Share of otherwise available scrubber operation where the vessel is assumed to switch to compliant fuel.
$ /MT
$ /MT
%/year
%/year

Scrubber Operating Cost

Separate the energy penalty from chemicals, waste handling and annual maintenance.

%
$ /MT fuel
$ /MT fuel
$
$
%/year
days/year
$
years
$ /tCO₂
tCO₂/MT
%

Investment Analysis

years
%
$

Scrubber Investment Results

Simple scrubber payback estimate

Enter scrubber data
Enter scrubber CAPEX, fuel consumption, operating days and fuel prices to calculate annual savings, payback, NPV and scrubber ROI.
Planning estimate only. Actual scrubber economics depend on fuel availability and quality, vessel trading pattern, sulfur spread, engine fuel compatibility, scrubber design, electrical load, maintenance, corrosion, chemicals, sludge handling, washwater restrictions, port requirements, charterparty allocation, downtime, class requirements and future regulation. Open-loop discharge rules differ by location and may change over time. Verify current local requirements before relying on scrubber availability. This calculator does not provide regulatory compliance certification.
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