Maritime software provider NAPA has joined forces with ship classification society ClassNK and shipowner Marubeni to evaluate how voyage optimisation could help with fuel and carbon emission savings.

The Fleet Intelligence platform from NAPA will be used to ‘retrospectively’ study the effect of energy efficiency existing ship index (EEXI) through actual vessel performance across Marubeni’s fleet, as well as compare it against similar fleets.

ClassNK’s expertise will be used in verification, analysis and accuracy. It will help NAPA to forecast Marubeni vessels’ future performance, ensuring they can compete in the market with reduced propulsion power after new EEXI and carbon intensity indicators (CII) requirements become effective in 2023.

Through NAPA’s exclusive performance model, the Cloud-based Fleet Intelligence platform integrates NAPA’s expertise in naval architecture with many years of data on actual sailed voyages and weather conditions.

The platform can study past performance and enhance fleet operations without commissioning or hardware installation onboard vessels.

It will help the three entities evaluate the effect of EEXI requirements on Marubeni’s fleet in terms of transportation capacity, CO₂ emissions and fuel consumption.

Using historical operation data, NAPA can also calculate CII for vessels. A weather routing system, called NAPA Voyage Optimisation, will later also be used to forecast the performance improvement of the vessels.

NAPA Japan managing director Naoki Mizutani said: “Reducing emissions is a strategic priority for fleets around the world, and with so many options on the table, it makes sense to start by finding out what is achievable by just optimising voyages, without the immediate need for any new fuels or technology.”

Last November, Korean Register and NAPA announced a ‘Live Interface Function’ for their respective software programmes, called KR SeaTrust-HullScan and NAPA Steel.