Batteries (ESS) by CORVUS & Norwegian Electric Systems

#technology #workshop #decarbonization

As decarbonization proceeds apace in the shipping industry, batteries/Energy Storage Systems (ESS) have great potential in reducing GHG emissions and improving energy efficiency. The main objective is to facilitate the fuel oil economy of the vessel’s electrical power plant by shifting the operation of the diesel generators to a point with better thermodynamic efficiency.

ESS by Corvus & NES

This operation may be accomplished either by peak shaving and/or by load leveling. Both techniques require a battery pack with its associated management system and an overall integration provided by Norwegian Electric Systems, that will interface the existing AC main switchboards with the DC battery circuits utilizing in-house developed cutting-edge solutions like ODIN’s Eye© for the DC links RAVEN INS for integrated bridge applications. State-of-the-art battery packs like CORVUS’s new generation Dolphin© and Blue Whale© batteries utilize the Li-Ion technology and its various modifications depending on the load. For the installation, a dedicated air-cooled battery room is essential. Combined with robust algorithms and sufficient sensor fusion, it ensures the reliable and efficient thermal management of the pack.

Installation & Vessels

The introduction of a battery pack (ESS)  in an existing power plant is a serious investment, so the role of the integrator is critical. This should not be considered solely as the installation of the new energy source with the associated power converters and the modification of the existing switchboard but as a thorough upgrade of the power plant coordinated and implemented in such a way that will guarantee energy savings and reasonable payback times. Moreover, it should be pointed out that this technology is by no means limited to short-range ferries and tugs but appeals to ocean-going vessels, such as bulk carriers and tankers as well.


Overall, the main objective of the Energy Storage System for ships is to optimize power usage, enhance operational flexibility and improve efficiency, leading to reduced fuel consumption, lower emissions, and enhanced performance.