Conventional motor yachts are powered by diesel- or gas-engines. Additionally, they have a generator on board to supply all household appliances. Hence, depending on the size of the yacht, a total number of 2 or 3 diesel-engines are used provide propulsion and feed the household devices with energy.

Sailing-yachts need a diesel-engine too. Depending on the operational area as well as the wind- and weather-conditions, a diesel-engine is required in addition to the sails for the propulsion of the boat. When anchoring in a quiet bay, the diesel-engine also ensures the energy-supply of the household appliances on board.

As most yachts use gas for cooking, the open flame not only heats up the interior but also causes an imminent threat. Furthermore, on many yachts the consumables like water and energy are managed in a way that enforces the skipper to visit a marina every two or three days to charge the batteries and to buy water for shower and drinking.

Lastly, a conventionally powered boat has a range of 300 to 500 nautical miles before needing to refill the diesel-engine. The use of a combustion-engine is, of course, inevitably also combined with noise, exhausts and oily films in the water.

In comparison, a SILENT-YACHT stores the energy generated through the solar panels in large capacity batteries. This electrical energy is used for propulsion and well as powering all household appliances on board. All this happens completely noiseless, without vibrations and pollution while also offering the possibility of having virtually unlimited range.