TECHNOLOGY

TECHNOLOGY

Instead of retrofitting existing catamarans with solar panels
and electric motors, SILENT-YACHTS are designed and purpose-build to be fully solar powered
from the very first time the pencil touches the paper.

THE BASICS

On every SILENT-YACHT, solar power is used for

Propulsion

Powering all navigation,
household and
comfort appliances

Charging water
toys and tender

This means you can enjoy all the luxury onboard in a sustainable manner while having the possibility of unlimited range with zero emission.

SILENT ADVANTAGES

UNLIMITED
RANGE

SAFEST MARINE
PROPULSION
SYSTEM

ZERO
EMISSION

VIRTUALLY NO
MAINTENANCE

NOISELESS
CRUISING

SILENT ASSURANCES

8

Battery banks
8 years warranty

25

Solar panels
25 years warranty

Lifetime

Electric motors
lifetime warranty

CE-A

CE-A
certification

Trans-ocean

Ocean crossing
capabilities

SILENT ADVANTAGES

UNLIMITED
RANGE

SAFEST MARINE
PROPULSION
SYSTEM

ZERO
EMISSION

VIRTUALLY NO
MAINTENANCE

NOISELESS
CRUISING

SILENT ASSURANCES

8

Battery banks
8 years warranty

25

Solar panels
25 years warranty

Lifetime

Electric motors
lifetime warranty

CE-A

CE-A
certification

Trans-ocean

Ocean crossing
capabilities

ENERGY GENERATION & CONSUMPTION VIDEO

The goal of this video is to give provide an insight into the generation and consumption of the solar powered drivetrain of a SILENT-YACHT. We will take you on a two day trip in order to showcase a variety of realistic scenarios, based on the SILENT 80 E-Power+. It will show you exactly how different situations affect the production and overall energy management with the help of the solar panels, electric motors and lithium battery banks on board.

ENERGY GENERATION
& CONSUMPTION VIDEO

The goal of this video is to give provide and insight into the generation and consumption of the solar powered drivetrain of a SILENT-YACHT. We will take you on a two day trip in order to showcase a variety of realistic scenarios, based on the SILENT 80 E-Power +. It will show you exactly how different situations affect the production and overall energy management with the help of the solar panels, electric motors and lithium battery banks on board.

THE SOLAR ELECTRIC DRIVETRAIN

WEIGHT When creating a favorable balance between energy production and consumption, weight is one of the key factors. Each kg / pound saved is equivalent to less wave drag and friction and therefore results in less energy required to move the boat. The less energy needed to move the vessel, the more energy is available for usage onboard. In continuation, excess energy can be stored in the lithium batteries as power reserves. The lightweight construction itself is a result of bionic design, the use of carbon fibers and high-quality resins. This reduces the weight significantly to about half the weight of a conventionally constructed and powered yacht. EFFICIENCY In order to maximize the energy efficiency of the yacht regarding its movement across the water, underwater lines are optimized by Computational Fluid Dynamics (CFD) and towing-tank tests. On board, salon and cabins are wrapped in thermal insulation. Furthermore, all windows are shaded by either the roof and/or the hull, thus lowering the energy consumption needed to keep the interior at comfortable temperature levels. In addition, all household appliances installed onboard feature class leading quality and energy efficiency, minimizing the amount of power required to fully enjoy the luxurious amenities. Overall, this leads to high levels of efficiency enabling powerful and self-sustaining propulsion.

AUTONOMY SILENT-YACHTS are true world cruisers with the possibility of unlimited range, even when the sun is not permanently shining. In case of longer periods of bad weather, the range extender automatically starts to recharge the lithium batteries when their energy levels are low. Their capacity provides ample energy for propulsion as well as all household appliances including the air conditioning, ice machine, water-maker or laptops (230 VAC / 110 VAC). There is no need to search for a marina in order to charge the batteries, get ice, refuel or to fill the water tanks. As a result, a SILENT-YACHT can cruise for weeks without fuel or the need to start the generator. LUXURY High levels of luxury require permanently available energy. On a SILENT-YACHT, you can watch TV, enjoy cold drinks, have the air conditioning running and produce up to 2000 liters of drinking water per day solely with the help of sustainable solar power. The air conditioning cools down the boat quickly and efficiently whenever needed. This, of course, is also true for heating during cold weather. RELIABILITY All the electrical components are of high industrial quality and are being engineered and built in Europe as well as the USA. Motors, inverters and their cables are IP69 certified. This means that they even work when permanently submerged in highly pressurized water. In comparison to a conventional diesel-powered propulsion system, electric motors are far more reliable as the only moving parts are the rotor and its two bearings. Fuel-based problems are an issue of the past as well. All wirings are tin-coated and all plugs feature a custom design which prevents humidity and water from entering. Additionally, all parts exposed to the marine environment are made of corrosion resistant materials. MAINTENANCE There is no maintenance required for the solar panels or the batteries. The electric motors need a set of two new bearings after 50.000 hours of usage. In case your personal usage does not exceed 500 hours per year, these bearing replacements would only be required every 100 years. The back-up range extender requires much less attention than two large diesel engines or sails in a conventionally powered catamaran. As a result, the overall maintenance costs & efforts of a SILENT are minimial. COST Virtually no maintenance leads to virtually no maintenance costs. As the sun remains as one of the few free resources in the world, there are no costs when recharging the batteries, powering propulsion system and the household appliances with the help of the solar panels. The same goes for all electric water toys, which can be directly charged onboard of the yacht. Hence, in combination with virtually no maintenance costs, these factors lead to minimal running costs in general - especially when compared to conventionally powered yachts. REDUNDANCY & SAFETY All vital components are redundant to ensure double safety. Due to the configuration of all components, a potential overload is impossible, making the solar-electric drivetrain far safer than conventional propulsion systems. Also, our catamarans were the first ever to be certified according to DIN EN ISO 16315 for the marine operations of electrically powered yachts.

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