Up to 8 hours silent, emissions-free energy
HyPS, the Netherlands-based company specialising in the design, development, delivery and service of marine hybrid power and propulsion systems, has won the contract to update the battery system on board the 40-metre J-Class Rainbow, delivered by Holland Jachtbouw in 2012. The update will provide more power and capacity and is due to be completed in October.
The new battery system for Rainbow will be similar to that in the recently launched J8 Topaz. At its heart will be two battery sets, each delivering 42 kWh. These will be water-cooled Li-NMC (Lithium Nickel Manganese Cobalt Oxide) types, the latest generation of Li-Ion rechargeable batteries for high power and energy applications. They deliver a compromise between high current rate and high capacity rate and provide higher energy density with lower costs and a longer lifecycle compared to other Li-Ion alternatives. The system will be capable of delivering 8 hours (80% depth of discharge) of silent, zero-emissions power at an average power of 8.4 kW.
As well as the storage and supply of electrical power, the complete HyPS battery system includes a battery management system (BMS). This delivers battery monitoring, protection, control and management; overvoltage protection; and peak shaving of the auxiliary distribution system.
HyPS designs and delivers electrical propulsion and power systems ranging from 75 kW to 2 MW of output, and energy storage in the battery sets is scalable from 28 kWh up to more than 1000 kWh.