Shipbuilding technology in a super yacht
The EST-Floattech Green Orca Lithium Polymer batteries with 546 kWh are the heart of the system, these store the energy produced by the generators and release it according to the requirements of the owner. If the owner wishes to run at zero emission mode using just the batteries, or if he would like a night at anchor without running the generators, he can do so. If he needs higher performance then he can run the yacht from the variable speed generator engines, but any excess power is diverted to recharge the battery banks so there is no wastage whatsoever.
The benefits of this system are truly noteworthy. Conventional yachts run generators at a fixed speed, burning fuel at a fixed rate whether that be too little or too much for the load at the time. By connecting the engines to alternators WIDER offer variable speed generators that will only be run at the speed that is necessary at the time. The result of this is greater time between overhaul of the engines, greater fuel economy, and greater comfort since noise and vibration are kept to an absolute minimum.
The WIDER 150’ has a propulsion system that draws inspiration from thousands of military and commercial vessels that run using diesel electric power. The WIDER Engineering team have sourced experienced and proven suppliers to adapt diesel electric technology to a super yacht setting, where not only reliability and economy are called for, but also supreme comfort and convenience.
The layout of the vessel is quite unlike any other super yacht. WIDER have placed four variable speed generators in the bow that produce energy and transmit it to the propulsion system and the “hotel”. By using AziPods, there is no need for mechanical components such as a propeller shaft.
“This is an important feature” says Antonelli,“conventional yachts have two large engines right in the middle of the hull, connected to two propeller shafts. The best part of the yacht is given over to the engines, these can create noise and vibration that can disturb the owner and his guests.”
The energy storage system (ESS) delivered by EST-Floattech has a raft of integrated safety features. Its unique active balancing and passive safety system is applied at the module and string level. Heat is dissipated by a simple off-the-shelf aircon unit. The battery racks are a favorable option as they can easily be installed in a modular fashion.
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