Kongsberg Maritime launches a tool to help optimize vessel performance

Written by

Nick Blenkey

DOF Subsea currently has two vessels piloting Kongsberg Maritime’s new vessel performance optimization tool

Kongsberg Maritime has launched an intelligent and dynamic decision support system to optimize a range of vessel operations. Called Eco Advisor, the vessel performance optimization system monitors vessel operation and its environment, including power generation, propulsion, environmental forces and control system dynamics. This enables operators to achieve reductions in fuel, emissions and maintenance costs, without compromising vessel redundancy margins or vessel operational efficiency.

The vessel performance optimization solution is the result of a joint “Smart Efficiency” research project between vessel operator Kongsberg Maritime AS submarine DOF (DOF), research institutes Sintef and NORCEand Innovation Norway aimed at developing technologies to monitor and reduce GHG (greenhouse gas) emissions during vessel operations.

With stricter regulations and a global need for the industry to operate as sustainably as possible, EcoAdvisor provides live ship performance optimization advice on how ship owners can reduce their carbon footprint while reducing OPEX.

“EcoAdvisor clearly demonstrates how a decision support tool powered by the power of digitization can help vessel operators stay competitive in a growing green market,” says Odd Hagen, VP Offshore Sales, Kongsberg Maritime. “Several factors contribute to inefficient marine operations, such as multiple engines running at low utilization, load variations, and large power fluctuations due to mission equipment and thrusters. Ship owners have found it difficult to achieve sustainable operations due to the conservative demands of shippers and the lack of a holistic overview of their operations.

“EcoAdvisor creates an intelligent and comprehensive overview of all these factors, providing guidance that helps find efficient, cost-effective and sustainable solutions without compromising vessel redundancy margin,” says Hagen. “In addition, the history log and reporting features of EcoAdvisor™ can be used to determine the Energy Efficiency Index of Existing Vessels (EEXI), the Energy Efficiency Operational Indicator (EEOI) and the Carbon Intensity Indicator (CII) to ensure compliance with IMO regulations.”


EcoAdvisor works by collecting and analyzing real-time data from various onboard systems. These include Dynamic Positioning (DP), Integrated Automation Systems (IAS), Navigation and Power Management Systems (PMS). This data is fed to a nonlinear optimization solver to find the optimal power plant configuration for the current environmental conditions, taking into account the demand of various consumers, including thrusters, mission equipment, and engine loads. the hotel. The optimum load reference for the motors and the state of charge reference for the batteries are calculated based on their efficiency and power loss.

Based on this analysis, operational advice is provided to the Captain, DP Operator and Chief Engineer on which machinery (engines, batteries and thrusters) can be shut down to operate the vessel more efficiently and sustainably. This advice is dynamic – if a change in average weather conditions (wind, waves and current), power plant system or DP system parameters is detected, EcoAdvisor’s recommendations will be revised accordingly. All advice is supported by a system overview of why these changes are desirable, how any step will alter the balance between efficiency and redundancy headroom, and what the real-time effect of the measurements is.

EcoAdvisor includes a Travel Energy Calculator (VEC) function for transit operations. This helps the operator to determine the total energy consumption for different speed profiles, including additional resistance due to wind, waves and current for selected routes based on weather forecasts. This allows operators to decide the optimum speed with minimum fuel energy consumption for a specific trip, based on their departure/arrival time requirements.

Utilizing EcoAdvisor’s innovative Vessel Performance Operation features on the use of generators, thrusters and power plant configuration, while maintaining and ensuring safety during DP operations, DOF currently has projects “smart efficiency” pilots operating on two vessels (Skandi Vega & Skandi Africa) and awaiting positive data.

“We see that there is potential for savings and reductions in greenhouse gas emissions, and if the outcome of the pilot vessels is as expected, we expect this to be installed on a larger part of our fleet” , says Arnstein Kløvrud SVP Technology & Integrated DOF Solutions.