Smart carbon intensity indicator CII tool for ships

StormGeo announced the launch of a new CII tool for calculating, reporting, and proactively improving the CII rankings of their fleet. 

StormGeo is a leading provider in weather intelligence and decision support solutions for the shipping industry. It announced the launch of a new Carbon Intensity Indicator Dashboard, CII tool. Specifically, it provides ship operators with the ultimate digital tool for; calculating, reporting, and proactively improving the CII rankings of their fleet. 


The new CII tool Dashboard is a key addition to StormGeo’s innovative software and services suite. Namely, s-Suite which comprises the s-Insight platform.

cii tool dashboard

Developed in response to the industry need for; reliable data and calculation methods for the accurate assessment of vessel carbon intensity. Hence, the new dashboard will play a vital role in helping ship operators to comply and stay ahead of new CII rules.

CII Measure

Particularly, the CII is an operational efficiency indicator which measures how efficiently a ship transports goods or passengers. Thus, the indicator is expressed in grams of CO2 emitted per cargo-carrying capacity and nautical mile. Note that, the calculation will follow the Annual Efficiency Ratio (AER). So, Ship operators have to calculate a CII rating value for all cargo, ro-pax and cruise vessels above 5000 GT. Therefore, report the rating after 1 January 2023 under mandatory, international rules adopted by the International Maritime Organization (IMO).

Under the new rules there is a CII rating on a scale of A to E. To clarify, A representing a very operationally efficient vessel. Vessels rated with D or E, must submit how the rating will increase to a C, or higher. Note that this Plan of Corrective Actions should be included in its Ship Energy Efficiency Management Plan (SEEMP).


StormGeo’s s-Insight combines the provision of CII data for multiple vessels in an intuitive interface. However, provided with the expert advice from StormGeo on a consultancy basis on how to improve vessel carbon intensity rankings.

Particularly, the new tool calculates attained and required CII ratings, and the deviation between the two. Accounted for a selected period using necessary vessel factors. Based on the preliminary data, the tool also predicts the year of CII rating deterioration. Therefore, allowing the user to interpret how a vessel currently ranks versus how it will rank in the future when CII rating limits tighten up. A three-day average trend element facilitates into the dashboard.

To address the need for critical data accuracy, StormGeo’s s-Insight platform has the reported data in such granularity that even exclusions for distance under defined conditions and corrections for reefer, cargo heating, cooling systems, etc., can be properly calculated and deducted. This makes the tool future-proof and ready for any changes in the calculation methods or exclusions defined by the IMO.

The CII Dashboard is currently available to StormGeo customers subscribed to the full s-Insight platform or users of the IMO DCS module.

Different takes

“We don’t just offer products, we offer innovative solutions. This tool developed based on client feedback on what they need to ensure the compliance of their vessels with incoming IMO rules for energy efficiency improvement and carbon intensity reporting and reduction. A simulation feature incorporates into the dashboard in the future which ship operators can use to run scenarios that provide insight into how the potential deployment of operational optimization measures will impact a vessel’s CII rating for that year. “Ultimately, we will integrate a voyage efficiency indicator into the tool that evaluates how efficient a voyage compares to a benchmark. This will take the idea one step further as a more advanced way of looking at vessel or fleet-level CII ratings,”

Dr. Thilo Dückert, Vice President Fleet Performance Management at StormGeo

“This is a truly unique solution that does more than just calculate CII ratings. Our active consulting, combined with an outlook of current CII rankings versus forecasted rankings offers the ultimate service for fleet carbon intensity improvement. At StormGeo, supporting the decarbonization efforts of the international shipping industry and accelerating the use of digital solutions is a top priority. I am proud that our smart software will play a vital role in enabling decarbonization through digitalization.”

Kim Sørensen, COO of StormGeo Shipping

Source: StormGeo