Rolls-Royce Launches Battery System for Ships

Rolls-Royce Launches Battery System for Ships

Rolls-Royce has been delivering energy storage systems for ships since 2010, but the actual energy storage units were previously supplied by an external party. The company announced today it is launching its own lithium-ion based energy storage system.

Energy storage can be a major green investment for a ship owner, with maximized returns when the system is correctly dimensioned for the specific ship, and includes intelligent power control.

Rolls-Royce said its new SAVe Energy liquid cooled battery system is cost competitive, highly efficient and offers a modular design that enables the product to scale according to energy and power requirements. The system complies with international legislations for low and zero emission propulsion systems.

The development work has been partly funded by the Norwegian Research Council of Norway’s ENERGIX program. The three ship owning companies Color Line, Norled and the Norwegian Coastal Administration Shipping Company have been partners in the development, ensuring that the energy storage system covers a wide variety of marine applications, including ferries, cruise vessels and multipurpose vessels.

SAVe Energy will be delivered from the Rolls-Royce Power Electric site in Bergen, Norway, as part of the company’s offering of complete ship systems.

Andreas Seth, Rolls-Royce, EVP Electrical, Automation and Control – Commercial Marine, said, “The electrification of ships is building momentum. From 2010 we have delivered battery systems representing about 15 MWh in total. However now the potential deployment of our patent pending SAVe Energy in 2019 alone is 10-18 MWh.”

SAVe Energy can be applied to several areas including peak shaving, spinning reserve and battery powered vessels. Combined with a liquefied natural gas (LNG) or diesel powered engine in a hybrid solution, it will increase efficiency and reduce emissions, and can be coupled with most types of propulsion units. In a hybrid set up, SAVe Energy handles the peak load, while the main power generators will relate to the average load and not reduce the propulsion units thrusting capabilities.    

“Battery systems have become a key component of our power and propulsions systems, and SAVe Energy is being introduced on many of the projects we are currently working on. This includes the upgrade program for Hurtigruten’s cruise ferries, the advanced fishing vessel recently ordered by Prestfjord and the ongoing retrofits of offshore support vessels. As a system provider we can find the best solution considering both installation and operational cost,” Seth added.

SAVe Energy is an ESU system (Energy Storage Unit), and was recently class approved by DNV GL, confirming that SAVe Energy has been developed in compliance with the newest 2018 ruleset, and are accepted for installation on all vessels classed by DNV GL.