Ben HukinsBen is a chartered electrical engineer with over 20 years’ experience in the oil and gas and marine industries. He started his career working for an OEM in the battery, UPS and variable-speed drive market before moving into verification and marine services with DNV GL. He currently leads the marine operations and dynamic positioning team within the Noble Denton marine services line of the DNV GL oil and gas business, operating a UK-based team covering the UK, West Africa, Northern Europe and further afield. He is accredited to the IMCA DP Trials Practitioner scheme.
Battery sizing for post-worst-case failure operations
Various marine operations require the vessel to be able to safely cease the current operation or maintain a certain minimum operational requirement following any single failure; for example, dynamic positioning and redundant propulsion applications. Designs often rely on a single battery bank being available post worst-case failure to meet this demand. However, different classification societies and different classification notations place different demands on the requirements and capacity of the battery. An appreciation of what the battery needs to be sized for and the classification society requirements can have a significant impact on the capacity of the battery required.