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EEXI Compliance & Vessel Optimization Center

Attained vs required EEXI, PASS/FAIL gauges, EPL & SHaPoLi estimators, retrofit ROI, dry-dock and PMS links, fleet preview — the free Actinium-sm technical compliance workspace.

Estimates only. For fleet-grade tracking, use Actinium-sm live records.

EEXI compliance dashboard

EEXI Compliance Report

FAIL ❌

EEXI Rating

FAIL ❌

Margin

-15.3%

ME Power

10,000 kW

Required EEXI

4.500

Attained EEXI

5.190

Status

Action required

*Estimate only — not class certification.

PASS / FAIL gauge

FAILPASS

Current attained

5.190

Required 4.500

Engine power curve

60
70
80
90
100
Actual power Limited (EPL)

Illustrative RPM vs power — replace with shop test / sea trial curves in Actinium-sm.

Interactive EEXI calculator

Move sliders — graphs and compliance update instantly. Simplified single-engine proxy for education and screening.

Live attained: 5.190FAIL

EEXI formula breakdown

ME 10,000 kW↓SFOC 175↓Cf 3.114↓Capacity 75,000↓Vref 14 kn↓→ Attained 5.190↓FAIL

Engine Power Limitation (EPL)

Current MCR
10,000 kW
Required limited MCR
8,671 kW
Reduction
1,329 kW (13.3%)

Linear power scaling on the simplified EEXI proxy — use maker/class EPL calculation for formal compliance.

SHaPoLi calculator

Maximum RPM (approx.)

95.6 RPM

Retrofit recommendations

Vessel may FAIL — consider technical measures:

EPL Shaft Generator Propeller Upgrade Rudder Bulb Hull Coating Air Lubrication Waste Heat Recovery Engine Derating

Fuel / CO₂ / cost savings estimator

Fuel saved
1,373 MT
CO₂ saved
4,275 MT
Money saved
$892,320/yr
Fuel cut ≈
26.4%

Retrofit cost & ROI

Cost

$35,000

Savings/yr

$892,320

Payback

0.5 mo

Propeller efficiency

Potential open-water efficiency gain ≈ +4 pp with upgrade / polish (illustrative).

Hull resistance

Click to toggle fouling scenario (~+18% fuel when dirty).

Speed optimization

vs 15 kn: fuel ≈ 81% · CO₂ same order · lower Vref can improve EEXI proxy.

Carbon reduction — before / after (illustrative)

MetricBeforeAfter (−12% power)
Fuel MT/yr5,2003,827
CO₂ MT/yr16,19311,918
NOx index*10090
SOx index*10089

*NOx/SOx indices are relative demo scales, not statutory EIAPP figures.

Dry dock opportunity

Recommended to combine EEXI measures with dry dock scope:

  • Propeller Polishing
  • Hull Coating
  • Engine Tuning
  • EPL Installation
  • Rudder Upgrade
Dry Dock CostDD BudgetTechnical module

PMS connection — related jobs

Turbocharger CleaningFuel Valve CalibrationInjector TestingExhaust ValveCylinder CompressionScavenge InspectionGovernor CalibrationEngine Performance Test

Link performance tests and injector/turbo jobs to EEXI readiness in Actinium-sm PMS.

Compliance timeline

Today↓Retrofit↓Sea Trial↓Verification↓Class Approval↓Certificate

AI recommendation

Your vessel may FAIL on this proxy. Try engine power −10%, hull cleaning, or propeller polishing — or combine EPL with dry-dock energy-saving devices.

Fleet ranking (demo)

  • MV A PASS
  • MV B PASS
  • MV C FAIL
  • MV D PASS
  • MV E PASS

Fleet optimization dashboard (Actinium-SM showcase)

VesselEEXICIIStatusAction
MT AlphaPassA🟢None
MV BravoPassB🟢Monitor
MV CharlieFailC🟠Install EPL
MV DeltaPassB🟢Hull Cleaning
MV EchoFailD🔴Retrofit Required

Class requirements

ABSDNVLRBVNKIRSRINACCSKR

IMO references

MARPOL Annex VIEEXI GuidelinesSHaPoLi GuidelinesMEPC CircularsEngine Power Limitation Guidance

Knowledge centre

Related free tools

Planning CenterDry Dock CenterOPEX CenterCII CenterCarbon EmissionFuel CenterPerformance CenterPSC CenterSIRE CenterDD Budget IntelligenceRFQ IntelligenceEngine Power CalculatorSFOC CalculatorPropeller Slip CalculatorShaft Power CalculatorHull Resistance CalculatorNoon Report CalculatorVoyage Calculator

Download centre

FAQ — EEXI compliance

What is EEXI?

Energy Efficiency Existing Ship Index — a design/attained index under MARPOL Annex VI for existing ships (estimates only on this page).

How is EEXI calculated?

Simplified proxy: power × SFOC × Cf / (capacity × Vref). Class-approved calculations include FW/ice/correction factors and approved NOx/EPL documentation.

What is the difference between EEXI and CII?

EEXI is primarily a design / technical measure; CII is operational carbon intensity over a year of sailing.

What is SHaPoLi?

Shaft Power Limitation — limiting shaft power via engine/shaft control as an alternative or complement to Overridable Engine Power Limitation (EPL).

Does every ship require EEXI?

Most cargo and passenger ships ≥400 GT in applicable ship types need EEXI verification. Exemptions exist for certain categories — check class/flag.

How can I improve EEXI without replacing the engine?

EPL/SHaPoLi, propeller upgrades, energy-saving devices, hull coating, and approved derating can reduce attained EEXI.

Is EPL mandatory?

Not always — it is one common compliance pathway when attained EEXI exceeds required. Class must approve the limitation method and override procedures.

What happens if a vessel fails EEXI?

It must implement approved technical measures and re-verify before continuing compliant operations under the applicable scheme.

Run this across your fleet in Actinium-sm

Superintendents use Actinium-sm for live vessel data, PMS, dry dock budgets, CII monitoring, PSC/SIRE readiness, and purchase quote comparison — with cloud office and offline ship sync.

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