EV Maritime has engaged in hydrodynamic optimisation using computational fluid dynamics tools more commonly seen in America’s Cup design programmes or aeronautical engineering.
Collaboration with world-leading New Zealand propulsion and control technology engineers enables EV Maritime to harness the spectacular maneuverability capabilities of an integrated electronically controlled steerable propulsion system with the highest levels of safety and reliability.
The power systems are the foundation of the technology for electric and hybrid ferries. Liquid-cooled permanent-magnet AC electric motors are supplied by power converters operating from a duel-bus high-voltage DC system powered by twin banks of actively-managed lithium-ion batteries engineered and certified to the highest world standards.
The wider electrical power system is being pulled together by a world-leading Whangarei-headquartered firm of electro-technical engineers with a trusted reputation to serve the most performance-critical operations including military, industrial and infrastructure as well as countless marine applications.
In the small number of applications where battery electric vessels do not yet have the range to offer a robust service, hydrogen-ready plug-in hybrid vessels will be used. These vessels use a combination of diesel engines, batteries and electric motors to enable low-speed operation in pure electric mode whilst delivering high speed performance over an extended range using diesel engines. Importantly, the engineering of these vessels is designed to facilitate retrofit of hydrogen fuel cells once the supply infrastructure is in place to support this.
EV Maritime is developing fast charging systems to take grid electricity and convert it to high-voltage DC power for cable-based charging. The charging systems can accommodate shore-based batteries to enable high-speed charge with reduced peak load on the grid.