Rolls-Royce EMS for Nine Havila Vessels

Rolls-Royce Commercial Marine has been awarded a contract to install its next generation Energy Management System across nine vessels in the Havila Shipping fleet: four anchor handling tug supply (AHTS) ships, four platform supply vessels (PSV) and one rescue and recovery vessel (RRV).

The Energy Management System (EMS) was first introduced in November 2017 by Rolls-Royce, as part of a suite of vessel Intelligent Asset Management (IAM) products, and has since then been installed on over 50 vessels.

A key benefit of the EMS is that a ship’s crew can see in real-time the effect that running machinery has on fuel consumption in order to make the necessary operational changes to reduce the fuel requirement.

The system’s sensors assess fuel consumption against, amongst other things, vessel speed, electrical load and the relationship between propeller pitch and RPM. Existing dynamic positioning (DP) sensors are also used to calculate the external forces – wind speed and wave force – acting on the vessel. It also shows how the vessel’s operational parameters are influencing fuel consumption.

The data collected from the sensors is then available onboard and is securely encrypted and processed. The required reporting data is transmitted via link on to a secure Rolls-Royce-hosted web portal, where more detailed historical analysis and comparisons can be carried out.

While it is too early to evaluate the operational and performance data for the first Havila ship, Rolls-Royce has EMS customers reporting annual fuel savings of up to 20%. The installations on Havila’s fleet are scheduled to be up and running, reporting fuel consumption trends, by March 1, 2019.