A vessel that is equipped with an onboard battery energy story system (BESS) can reduce fuel consumption by creating a more optimal load on a ship’s current motors. A BESS also makes it possible to shut down operation of one of a ship’s engines, resulting in lower
maintenance demand on the machinery. Compact in size, these flexible systems are a good option for vessels that lack room below deck for the addition of a battery room.
With these factors in mind, Eidesvik made the decision to retrofit The Viking Queen with a BESS, making it the first already-operating offshore vessel to benefit from such a system. Provided by Nidec ASI, the 650 kWh, 1600 kW containerized solution was customdesigned to match the vessel’s operating profile.
The use of battery storage reduces the vessel’s fuel consumption approximately 18 percent. The BESS also makes it possible for The Viking Queen to reduce nitrogen oxide, carbon dioxide and other greenhouse gas emissions by approximately 25%, which will result in less maintenance demand on the machinery. Furthermore, NOx and greenhouse gas (CO2) emission levels is reduced by approximately 25%.