Marlo - Carbon Intensity Indicator (CII) Calculator

Modified on Thu, 3 Jul at 7:10 AM

Marlo’s CII Calculator allows users to assess the environmental performance of their vessels based on IMO’s Carbon Intensity Indicator standards. It helps evaluate voyage emissions and understand how a vessel’s carbon efficiency rating might change under different operating conditions—supporting better decision-making in voyage planning, chartering, and compliance tracking.


Concepts in the Module

  • Rating Scale: Graded A to E (A = best, E = worst)

  • Impact Inputs: Bunker type, port time, average speed, distance, cargo quantity

  • IMO Guidelines: Marlo uses IMO DCS (Data Collection System) methodology for CII compliance

  • Benchmarking: Compare your vessel’s CII score against similar class vessels


Workflows in the Module

  1. Estimate View Integration

    • As users build an estimate, CII rating auto-calculates based on voyage details

  2. Voyage Monitoring

    • Track actual CO₂ emitted during ongoing voyages

  3. Retrospective Analysis

    • Analyze past voyages to understand CII trends per vessel

  4. Scenario Modelling

    • Adjust itinerary, speed, or bunker type to simulate impact on CII score

  5. Downloadable Report

    • Export CII calculation reports for compliance or internal review



Related Key Topics

  • EU ETS Module

  • Bunker Planning

  • Voyage Estimation

  • Vessel Specs

  • Emissions Monitoring


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