Bulkship Management, an Oslo-based ship management company specializing in geared ships, has placed an order for the implementation of Berg Propulsion’s power limitation solution, “EPL for EEXI,” on 10 ships travelling in the US Gulf and Caribbean. Berg’s solution is designed to limit engine power and target slow-steaming vessels that only require modest adjustments to meet the requirements of the International Maritime Organization’s Energy Efficiency for Existing Ships Index (EEXI). To limit propeller pitch, Berg’s Engine Power Limiter (EPL) solution is integrated with the supplier’s MPC800 control system.
The sold solution is software-based, meaning that it can work without additional sensors, and signals are sent from the Berg EPL to the ship’s controllable pitch propeller (CPP). The braking torque is then lessened until the engine power meets the permissible range. Once entered into the IMO’s Data Acquisition System (DCS), the information can be used to verify that the achieved EEXI matches the required EEXI. A pilot technical assessment of the Oslo Bulk 6 bulk carrier by the manufacturer indicated that the EEXI requirements could be met through a derating of the main engine, while sea trials established the Berg EPL as an effective solution.