EEDI
New-build efficiency
Assess Energy Efficiency Design Index performance against the required reference line.
Maritime Decarbonization Intelligence
Welcome toNEXA Carbon
A maritime emissions and energy-efficiency platform built by OceanX Ltd to turn complex vessel data into clear, actionable decarbonization intelligence. Measure. Manage. Decarbonize.
EEDIDesign Efficiency
EEXIExisting Ships
CIICarbon Intensity
Vessel carbon intelligence ANALYSIS READY
EfficiencyOptimized
Carbon insightA → E
Why NEXA Carbon
Decarbonization should be easier to understand.
The maritime industry is entering a new era where environmental performance is becoming as important as operational performance. Shipowners and maritime authorities increasingly need to understand vessel efficiency, carbon intensity, fuel use and evolving compliance requirements.
Yet EEDI, EEXI and CII calculations can become fragmented across technical documents, spreadsheets and operational records. NEXA Carbon was created to simplify that process.
Built by OceanX Ltd, the platform connects maritime engineering, regulatory compliance and data intelligence to help users evaluate performance, identify gaps and support better decarbonization decisions.
Core modules
Three indicators. One clearer view.
Move from inputs and formulas to structured, decision-ready vessel efficiency insights.
EEXI
Existing vessel efficiency
Evaluate attained EEXI, required EEXI and technical improvement pathways for existing ships.
CII
Operational carbon intensity
Calculate annual carbon intensity and understand A–E performance ratings with clearer insights.
Built for practical use
From vessel data to compliance intelligence.
✓IMO-aligned efficiency calculations
✓Fuel consumption & emissions analysis
✓Required vs. attained performance
✓Compliance gap identification
✓Decarbonization scenario support
✓Decision-ready reports
Ready to begin?
Proceed to NEXA CarbonMeasure. Manage. Decarbonize.
Enter NEXA Carbon and start transforming vessel data into clearer carbon-performance decisions.