Silent 55 sails free at sea with solar power and storage by MG

A growing number of luxury yachts is hybrid-electric. Some are even equipped with solar panels or power banks, but as these generally don’t provide enough energy to power both onboard systems and propulsion, most still rely on burning fossil fuels at least to some degree.

But that’s about to change. Enter Silent 55, the newest cruising catamaran by Silent Yachts, that relies nearly entirely on solar energy. No toxic exhaust, no noise from generators and no excessive vibrations from diesel engines. It’s virtually self-sufficient and maintenance-free.

The 55-foot vessel comes outfitted with 30 high-efficiency solar panels with a power output of around 9 kW. Using charge controllers this energy is stored in 28 high-energy Litium-Ion batteries to power both onboard amenities (through a 15 kVa inverter) as well as a its silent electric propulsion system.

The entire installation includes 2 systems, each consisting of 1 MG High Voltage Master and 14 MG High Energy Battery Modules, configured in series to achieve a system capacity of 2 x 70 kWh. Unique in this application is the unusually high system voltage of 400 VDC, while the setup is very compact and weighs only 2 x 400 kg.

A generator is on board for rough weather or emergencies, but the Silent 55 meant to cruise for weeks on end. Carefree.

Components used

2 systems, each consisting of:

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