Silent-Yachts Facing Bankruptcy? What's Next for the Solar Powered Companies?" 

This is not the "future of yachting" for probably another 20 years. Diesel/electric hybrid with solar backup is the foreseeable future in yachting unless battery and solar technology jump by about 5×. Check out Greenline Yachts. They're not going bankrupt because their engineers are firmly grounded in reality.

Honestly, you could probably buy a tiny catamaran and have it converted to solar electric for $500k. But the reason they're going out of business is that people are starting to realize that solar panel AND battery technology aren't far enough along yet to make them a viable standalone option. Even most people rich enough to afford millions for a solar yacht can't afford to wait around for it to charge ...IF the sun is even out to charge it. The panels have to be cleaned constantly, they lose efficiency with each year, and no one wants to be stranded at sea waiting for the sun.

@@BradleyBellwether-oy2qi All these yacht has diesel electric generator allowing the Silent Yacht to charged and run even without the sun

you need a lot of surface for the solar panels. only catamarans offer that large surface.

@@henq Of contraire, I have measured the available surface of three super yachts, and there is more square footage available to hold solar panels, or even better, solar sheets than they have on silent yachts or the vision E. Keep in mind, SunReef yachts has proven that solar does not have to be only on flat roof like surfaces.

Agree! They started with the Solarwave 62 for 1.4mio euro without VAT. But from than on, only bigger and bigger and more expensive models....

Start is 2.8€

@@gwmu7745😮

It's a double whammy. Not only can the "average millionaire" not even afford one, the truly rich that can, are exponentially unlikely to care about burning fuel. Heck they probably made their money in oil.

@@CitizenMio yes exactly my thoughts!

but peace & independence aren't cheap you need to pay ;)

@@sasakostic1982 I don’t pay to help. I usually get paid lol or it’s an act of good faith.

There is a solution.. electric generators.. no problem.

Hi, not yet - but our clients cruised way more than 100.000 miles on almost all oceans - in a few weeks even on the Pacific Ocean. It´s even easier to cross the Pacific Ocean - as the name "pacific" indicates, calm, not a lot of wind, but sunny.

1. With Sunreef, I doubt that the solar panels laminated into the hull will ever balance out the additional costs in the lifetime of the catamaran. Sunreef is a luxury symbol. Admittedly impressive when you step aboard, but few people can afford 5-star luxury. Silent is less than half the price. Still a long way from the normal price level, but the inovation accessible to more people for a charter. 2. if you do the math, you get results. a) Purchase price in relation to the possible solar area, as well as the question of the stated engine power? Can the solar harvest store enough energy for these motors? b) Additional weights at the top of the ship and the increase in torque characteristics in moving water until capsizing. c) Ratio of ship weight for monohulls (often steel) or multihulls and thus even heavier engines, thus worsening the balance between possible solar harvesting in batteries, further increase in ship weight. Solar harvesting is 60-90% lower in sidewalls. So more of a marketing gain. Water resistance to be overcome at 6, 12, 18, 24 knots? ... Underwater hulls for monohulls and multihulls are different worlds,... much more. If you don't know the different influencing factors, you can't calculate them. And a little tip. Even a thin tensioned line leads to 60% solar yield loss. Every antenna or radome and and and.... Measuring a ship for a solar harvest from a bird's eye view???. ...is just as precise as the gardener's statement that exactly this one seed grows the fastest when he reseeds the soccer pitch. But to work with and find out new ways is allways positiv. Greetings to all

​@@user-ri7lg9lv7k What boat? Where i can find the BBC Fox or or other the worldrecordnews? 2,5 times around the world in weeks is exelent. Gratulations

SY are for the anti-sail crowd. When you say SY were not the first, they were ahead of Sunreef. SY were 2016, SR were 2022. I'd love to know what pre-2016 large electric-only boat you're thinking of.

Redundancy is key for sure when far away from shore. I remember talk about a kite system for one of their models? With sail catamarans at least, being able to use the props as dynamos to regen is a hugely powerful combo that blows any solar out of the water. So taking advantage of the wind when present, in addition to a hybrid generator would be even better.

SY all have generators that can be used to fill the batteries, you're not dead in the water if you run out of sun.

@darthkek1953 Yeah, but they can't propel the boat while they charge, like a diesel hybrid can. Also, in a diesel hybrid, if one or the other goes out. You still have a backup to get home. That's pretty important when you're miles out at sea.

@@BradleyBellwether-oy2qi that's literally the opposite of the truth. SY have a management system that lets them charge the batteries from the generator whilst also using the batteries to power the engine. You really need to study these boats more.