Boating and electric motors is a match made in heaven: quiet, powerful, smooth, comfortable - with lower running and maintenance costs. Exciting times ahead.
We “rag men” (sailers) were always referring to diesel or gasoline powered boats as “stink pots”. Nice to imagine just hearing the wind and waves and sea birds and not engine droning.
@@Boris_ChangYeah, my old father decided he wanted more peace and quiet, so he ripped out the diesel and replaced it with an electric one, and then sailed around the world. You only need the engine when you are diddling about the harbours.
Nothing better than watching you in 'enthusiast' mode, Jack. Fascinating vessel, toured with both yours and the team's usual aplomb. I'm still waiting to be disappointed. May be a long wait. Cheers mate
Sunreef is a very cool catamaran, it's the king among all catamarans, I got to enjoy this beautiful creation through your channel, I'm also a skipper from Georgia, it's nice to watch these wonders from TH-cam. At least here I am enjoying my dream yacht. I hope I will get a chance to caress my dream yacht in my life, thanks
YES. That’s it. Just yes. Anytime anywhere I’m all in. The current design layout is perfect. Best success to Sunreef for this one. I hope to see you in Fort Lauderdale 2024.
Thank you very much for the video. It’s nice to see that yacht. The one in surmountable issue that I have with sunroof is that as nice as some of the interiors are and a spacious as they are, they refuse to give up the fiberglass hull. Every Sunreef Yachts, regardless of how careful they say they are with their infusion process is still a fiberglass yacht with all that. And the bigger they get the far more expensive they get and now we’re asked to spend an insanely huge amount of money for a fiberglass boat. Come on Sunreef, charge a bit more and make it out of aluminum. It’s not a good investment.
I basically agree, but would point out that the Royal Navy has kept a class of ocean-going GRP minehunters in service for 40 years. Given the choice I would buy Aluminum every time, though I'm not convinced I'm being 100% rational there.
I also caught that immediately. And later, "We also can't see the engine room..." Slap some solar on an extremely expensive yacht and call it green. Nice! I wonder how she sails.
@@airgunningyup probably much closer to 10 . A yacht like this should get around a mile a gallon at low speed. And the nice thing about this is they can always run the generator at the most efficient rpms to just charge back up the battery bank.
You get about 12-14 hours a day off the batteries and solar cells. You only need the diesel generators if you need to extend your range beyond that. Generators use much less fuel than diesel powered props too.
So that 150 range, I assume that is just pure battery storage capacity we are talking about here? Obviously, it chargés during, so it could technically be unlimited depending on your location. Except nights, unless the fuel tanks for the generators are up to it..... How large capasity of fuel does the generators hold?
yes... sort of, but you are not taking into account how much other stuff will be using that same electricity while you are travelling, I'm sure that 150 is if you are not using everything else electric on board while travelling... and it wouldn't account for charging your laptops, and running your A/C and a lot of other stuff... I would like to see some practical reviews from an owner rather than a seller... as they would have less tendency to be biased.
The interior is amazing. I love the light colors. Obviously it's in 'charter spec' and is that taupe and white color scheme, but its done very well in here. Very Scandinavian design. 4 cabins though seems kind of odd for a yacht of this size, but given the ga,,ey down design and the crew cabins, it makes sense. Still, with charter spec you would think they would have pushed for 5 cabins or done a cabin with 4 bunk beds in a staggered configuration maybe.
why does a sun-powered boat have a range? In the description of this video it says it's unlimited, but at 1:35 it says it's 150nm. It's because they didn't integrate enough solar panels. I recommend the sailing version of this
Great video. I like the floor plan layout to see where you are on the boat. Really well done and no one else is doing that. I wonder how the sail version of this would be with the Michelin auto-sail? Combined with the solar and diesel, that may be the ultimate solution.
I do like this, and the Silent series. I think they be a big player in the future of power yachts, but I think hybrids will also be a big thing as a lot of people will want the security of a fail safe system.
Ever since I saw the solar boat that sailed the world I have been waiting for these yacht makers to make them. Although it would make sense to have a hybrid system to cross oceans. Solar, Sail and Diesel. Sip the fuel only when needed or for extra speed.
They use diesel generators to charge the batteries if they need to go further than the batteries can take them. Diesel generators use a lot less fuel than a diesel-powered prop.
Great concept, but let's keep it real and (even if they are minimal) point out the realties of solar power and the shortcomings of this vessel when you are trying to market it as a free energy, grid independent vessel. Jack should do a review a year down the road.
How long do the photovaltaic pannels last before one has to replace them? Waiting for the Hydrogen Cell powered Boat to come out or "LENR" Cold Fusion actually
Combining the solar with hydrogen should be very doable and I believe they might already doing it. You should be able to make your own hydrogen during the day to sustain energy needs through the night.
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This with an extra floor above the flydeck as the owner'ss suite, that would be extra fantastic. Something like the WiderCat 92 owner's suite.
Let's do some maths: 200m^2 of solar, so 40kw per hour (200w per metre @20% efficiency, it won't be anywhere near that!). 990kWh/40=25 hours to charge. Given you get 5-8 usable hours per day, you're looking at amount a week to charge. Guess that's why they switch on the diesel generator(s) when everyone is sleeping.🤫 That's about a million euros on batteries alone (ballpark figure). It's impressive, but a lot of it is marketing w#nk. Funfact: They use the same motors as Silent Yachts. QUESTION: Did they tell you how much she weights? An important figure that's oddly absent.
990kWh is a lot and you won't consume all of that energy in one go. The yacht will be at anchor 90% of the time therefore energy consumption is kept to a minimum (the biggest draw will be from air conditioning) and the battery bank and solar panels will be sufficient to handle the house loads without turning on the generator (40kWp at 20% efficiency = 8kWh x 10hrs of sunlight is 80kWh of energy). In addition, diesel generators are on hand and these can be programmed to automatically turn on when the battery level falls to 75% or 50% but never at 0%. This way the yacht will always have power any time of the day. In case the yacht sails, the 180kW motors do consume a lot of power thus the limited range of 100NM on battery power alone but all the crew have to do is switch on the gensets and the yacht can continue sailing while the batteries are getting charged. Once fully charged the gensets can be turned off and the yacht sails again on battery power alone and the cycle just repeats.
I would say the EXACT opposite. MAke sure the generators are OFF when everyone wants to sleep. If you don't have enough battery at 6pm for the overnight hotel load you run the Generator early. Whole point is you can sleep without the constant hum and vibe of a generator.
@@rafenzotravelsyou have the wrong Interpretation of kWp and efficiency. A 40kWp solar system gives you at best irradiance 40kW of power so after 10h you have 400kWh. The 20% efficiency are included before. because if you have for example 1000W/sqm irradience on a 2sqm solar panel then it is a 400Wp panel in case of 20% efficiency.
@@OJack0815In that case, it's all the better. If the panels can generate 40KWp, continual sun exposure would be enough to power the hotel loads and the rest can be used to keep the batteries topped up during the day.
What happens when the solar panels hit their end of life? Is the yacht scrapped or does it need to go through a total refit to replace all of those panels? I can't imagine having to have to replace panels embedded in the hull.
I'd be more concerned about the batteries. If the solar panels completely stopped working (they don't, they just slowly lose efficiency) you still have a diesel electric boat. You can still charge up on shore power, too. But without the batteries, this thing basically doesn't work.
Solar panels are "Solid State" -- they don't really have end-of-life like most electronics. The usual "life" given for panels is when they drop 10% of production and after that they tend to produce that 90% of rated capacity forever. (hazing and temperature expansion) In real terms they should last 40+ years.
I think these kind of boats will be awesome in about a decade cuz right now currently solar panels only capture 20 to 25% / efficiency. So in another decade or so when solar panels are actually up to 50% efficiency. With a wind turbine for nite time & cloudy,dark days.
Ha! I'm friends with the owners and I've been on Sol. Amazing, Amazing boat, and the owners are equally amazing people. True heroes of the environment!
990kw?! Wow. I’d love a review video of the power generation, peak input and output. These will explode in popularity once they got proper sub 20ft beam models out
Great boat, Fernando Alonso has a 60ft version on order. Worry would be that solar panels degrade over time and therefore power would drop, that said it's still a great boat but I think that hydrogen engines are the future.
Hydrogen is much too difficult and dangerous. Because the hydrogen molecule is so small, there are many issues with leaks. The hydrogen also needs to be cooled down to a liquid state. A pressure tank would have about 10,000 psi and off-gassing as the gas heats up and expands. There are no hydrogen-powered vehicles because they just can't make it work. Maybe some day. Natural gas, methane, or propane is much easier to work with. You still have high pressure tanks that need to off gas for expansion.
If 150nm is the range on one battery cycle, how many cycles are the batteries good for? Also is the replacement cost after say 1 replacement going to equal the overall fuel cost if you had equivalent diesel engines. These are the questions I would ask when buying this boat. I love the concept but there isn't really any info given to make a real decision. I have 100 and 1 questions about the systems and propulsion design, stats, replacement cost. Also, that hot tub doesn't seem like anything you can really use. In one of the shots it looked as though a quarter of the water was flying out.
Great video beautiful Catamaran! Love them, I am going to wait a little while until they can get the safety features for the batteries a little bit better, I'd make them into a capsule that can be injected from the boat itself! So if they start a fire, the protection would be fire canisters hitting them first then they would be disconnected and ejected from the boat itself , sure you be without battery but have either a back up system that thrust you forward while the batteries get ejected and the boat safety away from them burning your boat up. Just a thought for the future of designs to come! :) Your welcome need anymore ideas let me know. :)
The % of time the generator is on is irrelevant. What matters is how much fuel is burned. And while it's small, much of its solar is unusable at any time. For example, if you're moored both sides are likely blocked. If you're not, one or both sides of solar panels won't be getting direct sun (if you're facing into or away, both sides won't get direct sun) . It is smart to have a generator that operates intermittently and only at max efficiency to charge a battery bank vs running directly off the generator, for sure. But this isn't nearly as eco as it's being marketed as. And every ship while moored is already as eco as whatever the shore power is. If that's sustainably generated, then the ship is sustainably operating.
@@harpintn How many kW do you estimate it takes to get/keep an 80' yacht going 5 knots? Also the Shockley-Queisser limit states that solar cells can never be more than ~30% efficient. Also they're remarkably non-advertising about how much solar they actually have. They just say "dripping with solar" or whatever and their specifications on their website doesn't say. That's telling. Nor do they say "range per day on solar" they just say "unlimited range".
@@redwolfexr No, because you just hook up to shore power. And also no because the solar aspect of this will offset approximately 0.0% cost vs your operating expenses so it's not worth thinking about.
Massive beam but might cost in berthing. Solar is great when it can provide meaningful movement but rather than spots of cells, why not make the sides all solar cells from top to bottom and end to end which is both more power and aesthetically nicer as a single color. Same with the other placements, don't do a conventional design and mosaic cells in where they fit but think the entire roof as one continuous panel with no gaps and sharp edges. I would add telescopic roof sections that could be extended for more power, like setting sails. Overhang that provides shade isn't aesthetically unpleasing. A good looking solar cell can have an aesthetic techy look akin to carbon fiber weave and become a nice design element rather than an intrusion. I think the concept has very significant potential. Since most of the time is spent not moving, excess power could be used to create hydrogen that could be run in combustion engines. Basically make endless fuel. With more sophisticated systems it could be made into liquid hydrocarbon fuel for easier storage of large volumes but that's technically much more demanding.
Two 360kw electric motors? No wonder it only gets 100 nm at 6 -10 knots range at best! It must have some sizable diesel generators! Yes one in each hull.
The "electric/solar power" hasn't matured enough to actually replace ICE. So give me a 68/70 Supreme (the best catamaran design, short of a front master cabin like the Aquila 44) with diesels.
Im guessing you use up the 150 nm then there would have to be a spare battery for emergencies. Say your deep in the ocean and need to cross 500 miles ruff sea yeah you get somewhere but better home in future they make it go 500 miles plus 500 miles more for back up
These range extenders you mentioned, are they power generators, like a normal diesel generators but without the diesel powered engines? How do that work, or are they top secret?
To the zombiefied state indoctrinated big time and the truth is vilified! VW XL 1 production diesel hybrid at over 244 mpg most owners get over 280 mpg, and that isn't even factoring in bio diesel; thanks to Diesel Gate they stopped production. The best EV can get only 155 mpgE* and that calculation is a bold face lie multiple ways! The real elephant in the room is CO2 reduction equates to less fuel for plants thus less plants thus less O2 and less life. All organics are carbon based. We are currently in the Quaternary ice age in fact...avg temp in Antarctica is -55C... What are the odds they delete my comments...100 to 1?
They are just diesel generators. But the nice thing is that if you have a large battery bank, you can run the generator only at its most efficient speed until the batteries are charged, then turn them off. You don't waste fuel running tiny loads directly off the generator.
It's a good looking boat, but I would have to play around with the layout.(We really do need to get rid of the efficiency cap on publicly available solar panels. Oil companies aren't the boss of other business, why should we allow them to lobby for laws suppressing them? Gates's new yacht has on board hydrogen production power & that just needs to be made available for everyone, everywhere, right now.💅🙄)
its a beautiful boat but the dishonesty of the marketing must be called out. "no engines, only electric motors and 'range extenders'". this utter kaku and perfectly illustrates the falsity of this "green" agenda. the so-called "range extenders" are generators, i.e. diesel fired engines. and they are not there to "simply" or "only" anything. they are there because the builders damn well know that 100 percent solar is unreliable. the diesel generators, in contrast, are very reliable. this sort of nonsense has to be stopped and if YachtBuyer wants to maintain its integrity it must be honest about these facts and not gloss them over with the manufacturers marketing schemes.
This is the first review I've seen Jack do that seems to have abandoned his informal, unabashed, no holds bared treatment, in a walk-through/review. Eerily reminiscent of a yacht broker 'review' .
Yeah, to completely run the boat on solar energy alone, meaning generate enough energy for not only the operation of the boat but, enough excess energy to charge a battery for use at night, the solar array would need to be 3 to 4 times that of the boat’s total footprint. I wouldn’t call it a “green agenda” though, as the technology already exists where land based solar farms installed in appropriately sunny locations provide more than sufficient energy generation to both the grid as well as to battery farms that collect excess energy generated from the solar panels for use at night, providing reliable and truly round the clock solar generated electricity. Tesla Energy is doing this and there are already installations like this around the world in Hawaii and Australia. This is just a company trying to capitalize on the increased interest in moving towards more green, renewable and environmentally friendly ways of generating electricity and as a company that designs and builds some of the most polluting things on the planet, they can claim that they are seriously moving towards green renewable technologies for their boats when, in reality, the technology isn’t yet sufficiently developed nor advanced enough to fully power a ship of this size with only photovoltaic solar panels. I will give them one thing, with their range extenders, it is technically more efficient to burn fuel to generate electricity and use that electricity to power an electric motor for driving a propeller, than it is to burn that same fuel to power a mechanical drivetrain. Yeah, it is definitely still a fuel burning engine but, it is technically a more efficient way of extracting energy from a fossil fuel. All misleading marketing aside, at least they are doing something to build a cleaner running Yacht.
@@bikersoncalli actually think @wildcountry at least has a point. I imagine a part of the agreement for being allowed to film on the Yacht was that the power generation and propulsion systems were to be addressed in a certain way as to sufficiently explain their functioning and to perhaps do so in a more generous manner and portraying things in a good light, choosing to omit some of the downsides or impracticalities of this sort of solar electric / diesel generator hybrid drive. Is that necessarily a bad thing, possibly, as it could come off as a bit dishonest as to leave out certain information that highlights the limitations of the technology could potentially lessen viewer trust in this outlet.
Should have backup power in case of an EMP attack. I don't wanna be stuck in the sea after WWIII broke out. EMPs would be flying everywhere. And that Yacht wouldn't be moving anywhere if it's electrical components get fried.
It needs a mast and a sail to give it range and speed. When you can store the same amount of energy kg for kg in a battery the world will be a different place.
batteries don't need the same energy density as gas because they are much more efficient at converting back to electricity than a combustion engine. But it's still way less even after conversion % applied.
Ever since Silent Yachts proved the concept there have been multiple others copying them years later with exactly the same product: Solar powered catamaran yachts.
934HP 150 NM range and at 8.5 million? Hell no! Anyone try electrolysis to really extend the range on a gas engine? Or what about a zero point engine powered yacht?
Seems like this yacht could get stuck out to sea with no power at the worst time (darky stormy weather with cloud covered sunlight). That would be a nightmare
Boating and electric motors is a match made in heaven: quiet, powerful, smooth, comfortable - with lower running and maintenance costs. Exciting times ahead.
@@jarrodf_ agreed! 👍
Until your get the motor wet, then you have a serous hazard.
@@harpintn Just swim over to the shark to avoid electrocution
We “rag men” (sailers) were always referring to diesel or gasoline powered boats as “stink pots”. Nice to imagine just hearing the wind and waves and sea birds and not engine droning.
@@Boris_ChangYeah, my old father decided he wanted more peace and quiet, so he ripped out the diesel and replaced it with an electric one, and then sailed around the world.
You only need the engine when you are diddling about the harbours.
Nothing better than watching you in 'enthusiast' mode, Jack. Fascinating vessel, toured with both yours and the team's usual aplomb. I'm still waiting to be disappointed. May be a long wait. Cheers mate
Nothing better? Have you been on the internet before?
I love the Sunreefs, but you need to check out the Silvercat.
He failed to mention the diesel generators.
Sunreef is a very cool catamaran, it's the king among all catamarans, I got to enjoy this beautiful creation through your channel, I'm also a skipper from Georgia, it's nice to watch these wonders from TH-cam. At least here I am enjoying my dream yacht. I hope I will get a chance to caress my dream yacht in my life, thanks
Many thanks 🙏
YES. That’s it. Just yes. Anytime anywhere I’m all in. The current design layout is perfect. Best success to Sunreef for this one. I hope to see you in Fort Lauderdale 2024.
Thank you very much for the video. It’s nice to see that yacht. The one in surmountable issue that I have with sunroof is that as nice as some of the interiors are and a spacious as they are, they refuse to give up the fiberglass hull. Every Sunreef Yachts, regardless of how careful they say they are with their infusion process is still a fiberglass yacht with all that. And the bigger they get the far more expensive they get and now we’re asked to spend an insanely huge amount of money for a fiberglass boat. Come on Sunreef, charge a bit more and make it out of aluminum. It’s not a good investment.
I basically agree, but would point out that the Royal Navy has kept a class of ocean-going GRP minehunters in service for 40 years. Given the choice I would buy Aluminum every time, though I'm not convinced I'm being 100% rational there.
“Range Extenders” Now that’s an onerous euphemism if I have ever heard one!
I also caught that immediately. And later, "We also can't see the engine room..." Slap some solar on an extremely expensive yacht and call it green. Nice! I wonder how she sails.
the range extenders probably burn 100 gallons of diesel per hour , maybe more;
@@airgunningyup probably much closer to 10 . A yacht like this should get around a mile a gallon at low speed. And the nice thing about this is they can always run the generator at the most efficient rpms to just charge back up the battery bank.
You get about 12-14 hours a day off the batteries and solar cells. You only need the diesel generators if you need to extend your range beyond that. Generators use much less fuel than diesel powered props too.
@@airgunningyup Not even close to 100 gph.
That is a great boat. This will be the future for sure.
This has to be future of living on a boat ❤❤❤ beautifully designed 😊
So that 150 range, I assume that is just pure battery storage capacity we are talking about here? Obviously, it chargés during, so it could technically be unlimited depending on your location. Except nights, unless the fuel tanks for the generators are up to it..... How large capasity of fuel does the generators hold?
Correct, the 150nm range is electric only. The generators can be called upon to extend the range when needed.
yes... sort of, but you are not taking into account how much other stuff will be using that same electricity while you are travelling, I'm sure that 150 is if you are not using everything else electric on board while travelling... and it wouldn't account for charging your laptops, and running your A/C and a lot of other stuff... I would like to see some practical reviews from an owner rather than a seller... as they would have less tendency to be biased.
The interior is amazing. I love the light colors. Obviously it's in 'charter spec' and is that taupe and white color scheme, but its done very well in here. Very Scandinavian design. 4 cabins though seems kind of odd for a yacht of this size, but given the ga,,ey down design and the crew cabins, it makes sense. Still, with charter spec you would think they would have pushed for 5 cabins or done a cabin with 4 bunk beds in a staggered configuration maybe.
HOLY-CRAP!!! 😲😲👍👍 I Could Definitely Live On Board That SOLAR-BEAST For The Rest Of My Life!!! Ifin I Only Had Some $$$-Money... 🤑🤑😜🤣😁😎
why does a sun-powered boat have a range? In the description of this video it says it's unlimited, but at 1:35 it says it's 150nm. It's because they didn't integrate enough solar panels. I recommend the sailing version of this
Great video. I like the floor plan layout to see where you are on the boat. Really well done and no one else is doing that.
I wonder how the sail version of this would be with the Michelin auto-sail? Combined with the solar and diesel, that may be the ultimate solution.
I do like this, and the Silent series. I think they be a big player in the future of power yachts, but I think hybrids will also be a big thing as a lot of people will want the security of a fail safe system.
Ever since I saw the solar boat that sailed the world I have been waiting for these yacht makers to make them. Although it would make sense to have a hybrid system to cross oceans. Solar, Sail and Diesel. Sip the fuel only when needed or for extra speed.
They use diesel generators to charge the batteries if they need to go further than the batteries can take them. Diesel generators use a lot less fuel than a diesel-powered prop.
Amazing boat! Love it!
Great concept, but let's keep it real and (even if they are minimal) point out the realties of solar power and the shortcomings of this vessel when you are trying to market it as a free energy, grid independent vessel. Jack should do a review a year down the road.
How long do the photovaltaic pannels last before one has to replace them? Waiting for the Hydrogen Cell powered Boat to come out or "LENR" Cold Fusion actually
Combining the solar with hydrogen should be very doable and I believe they might already doing it. You should be able to make your own hydrogen during the day to sustain energy needs through the night.
This with an extra floor above the flydeck as the owner'ss suite, that would be extra fantastic. Something like the WiderCat 92 owner's suite.
Whats the range extender, a pack of D cell batteries, how is 150nm limitless
Let's do some maths:
200m^2 of solar, so 40kw per hour (200w per metre @20% efficiency, it won't be anywhere near that!).
990kWh/40=25 hours to charge.
Given you get 5-8 usable hours per day, you're looking at amount a week to charge. Guess that's why they switch on the diesel generator(s) when everyone is sleeping.🤫
That's about a million euros on batteries alone (ballpark figure). It's impressive, but a lot of it is marketing w#nk.
Funfact: They use the same motors as Silent Yachts.
QUESTION: Did they tell you how much she weights? An important figure that's oddly absent.
990kWh is a lot and you won't consume all of that energy in one go. The yacht will be at anchor 90% of the time therefore energy consumption is kept to a minimum (the biggest draw will be from air conditioning) and the battery bank and solar panels will be sufficient to handle the house loads without turning on the generator (40kWp at 20% efficiency = 8kWh x 10hrs of sunlight is 80kWh of energy). In addition, diesel generators are on hand and these can be programmed to automatically turn on when the battery level falls to 75% or 50% but never at 0%. This way the yacht will always have power any time of the day. In case the yacht sails, the 180kW motors do consume a lot of power thus the limited range of 100NM on battery power alone but all the crew have to do is switch on the gensets and the yacht can continue sailing while the batteries are getting charged. Once fully charged the gensets can be turned off and the yacht sails again on battery power alone and the cycle just repeats.
I would say the EXACT opposite. MAke sure the generators are OFF when everyone wants to sleep. If you don't have enough battery at 6pm for the overnight hotel load you run the Generator early. Whole point is you can sleep without the constant hum and vibe of a generator.
That is correct. The crew can run the gensets for an hour or two from 8-10pm then run the hotel loads off the batteries during the night@@redwolfexr
@@rafenzotravelsyou have the wrong Interpretation of kWp and efficiency. A 40kWp solar system gives you at best irradiance 40kW of power so after 10h you have 400kWh. The 20% efficiency are included before. because if you have for example 1000W/sqm irradience on a 2sqm solar panel then it is a 400Wp panel in case of 20% efficiency.
@@OJack0815In that case, it's all the better. If the panels can generate 40KWp, continual sun exposure would be enough to power the hotel loads and the rest can be used to keep the batteries topped up during the day.
When I win the lotto I’m gunna get me one of these!!!! 🥰
Remember the old saying if it floats, flies or censored it is better to rent.
What happens when the solar panels hit their end of life? Is the yacht scrapped or does it need to go through a total refit to replace all of those panels? I can't imagine having to have to replace panels embedded in the hull.
My thoughts exactly.
I'd be more concerned about the batteries. If the solar panels completely stopped working (they don't, they just slowly lose efficiency) you still have a diesel electric boat. You can still charge up on shore power, too. But without the batteries, this thing basically doesn't work.
Solar panels are "Solid State" -- they don't really have end-of-life like most electronics. The usual "life" given for panels is when they drop 10% of production and after that they tend to produce that 90% of rated capacity forever.
(hazing and temperature expansion) In real terms they should last 40+ years.
Great ship and video!
So how much can the range extender add with full tanks of fuel?
I think these kind of boats will be awesome in about a decade cuz right now currently solar panels only capture 20 to 25% / efficiency. So in another decade or so when solar panels are actually up to 50% efficiency. With a wind turbine for nite time & cloudy,dark days.
Should have wind generators as well as solar and batteries…. Once the solar panels age…how do you replace them?
I think I would move the owners bedroom to the second from the very top of the boat. But it is an incredible boat !
Put the owners bedroom on the main deck. The boat has way too much lounging area for the number bedrooms.
Ha! I'm friends with the owners and I've been on Sol. Amazing, Amazing boat, and the owners are equally amazing people. True heroes of the environment!
I don't understand the limitations of range on this boat. If it is solar powered, how does it not have theoretically infinite range?
Question: Do you have to have crew to enjoy this boat, could a regular size family of 4 operate this boat without the need for hired help ?
990kw?! Wow. I’d love a review video of the power generation, peak input and output. These will explode in popularity once they got proper sub 20ft beam models out
can see this being very well sold, eco and range, plus get space
How much does the cost of the sun reef 80 how much do you need for a down payment and how long does it take for it to get completely built?
does it have regen? like when you harvest the energy from your propulsion. if so i might work harder to get one in the dear future
Great boat, Fernando Alonso has a 60ft version on order. Worry would be that solar panels degrade over time and therefore power would drop, that said it's still a great boat but I think that hydrogen engines are the future.
Hydrogen is much too difficult and dangerous. Because the hydrogen molecule is so small, there are many issues with leaks. The hydrogen also needs to be cooled down to a liquid state. A pressure tank would have about 10,000 psi and off-gassing as the gas heats up and expands. There are no hydrogen-powered vehicles because they just can't make it work. Maybe some day. Natural gas, methane, or propane is much easier to work with. You still have high pressure tanks that need to off gas for expansion.
If 150nm is the range on one battery cycle, how many cycles are the batteries good for? Also is the replacement cost after say 1 replacement going to equal the overall fuel cost if you had equivalent diesel engines. These are the questions I would ask when buying this boat. I love the concept but there isn't really any info given to make a real decision. I have 100 and 1 questions about the systems and propulsion design, stats, replacement cost. Also, that hot tub doesn't seem like anything you can really use. In one of the shots it looked as though a quarter of the water was flying out.
Great video beautiful Catamaran! Love them, I am going to wait a little while until they can get the safety features for the batteries a little bit better, I'd make them into a capsule that can be injected from the boat itself! So if they start a fire, the protection would be fire canisters hitting them first then they would be disconnected and ejected from the boat itself , sure you be without battery but have either a back up system that thrust you forward while the batteries get ejected and the boat safety away from them burning your boat up. Just a thought for the future of designs to come! :) Your welcome need anymore ideas let me know. :)
That and a metal hull would make the boat safer. There should also be some emergency escape hatches in the hulls just in cast.
If i had that money ,Surely i would be a proud owner
Can you send one to St Augustine, please. I’ll look forward to it. 😅. Beautiful Cat.
I would be grateful a middle way with long range motor cruising but epic solar for all house functions.
That George Town fellow seems to have a lot of boats?
😂
My gardener ordered one.
Seems like it should come with a sail or a hybrid diesel setup. Do people in SF and the Puget Sound boat in non-summer months?
Is there a smaller version of this boat? I don't have enough friends for this.
I believe their eco line starts at 60ft
Any model of this size of this brand is of the highest interest. The quality is also remarcable.
What is the selling price dude?
My kinda boat ❤❤❤
Not to my taste, personally, but great walkthrough Jack and crew!
How much wil it cost more to get also the sailing rig?
Not that i have that typ of monny😅
It’s the future. Imagine 90 pct of the time with no engines or generators on. Heaven.
The % of time the generator is on is irrelevant. What matters is how much fuel is burned. And while it's small, much of its solar is unusable at any time. For example, if you're moored both sides are likely blocked. If you're not, one or both sides of solar panels won't be getting direct sun (if you're facing into or away, both sides won't get direct sun) . It is smart to have a generator that operates intermittently and only at max efficiency to charge a battery bank vs running directly off the generator, for sure. But this isn't nearly as eco as it's being marketed as.
And every ship while moored is already as eco as whatever the shore power is. If that's sustainably generated, then the ship is sustainably operating.
@@zachansen8293 Of if you have a Solar yacht wouldn't you make a point to moor where you get the most sun?
@@zachansen8293 If solar panels operated at 50% efficiency this is a system that would be viable provided you kept the speed down to 3 to 5 knots.
@@harpintn How many kW do you estimate it takes to get/keep an 80' yacht going 5 knots? Also the Shockley-Queisser limit states that solar cells can never be more than ~30% efficient. Also they're remarkably non-advertising about how much solar they actually have. They just say "dripping with solar" or whatever and their specifications on their website doesn't say. That's telling. Nor do they say "range per day on solar" they just say "unlimited range".
@@redwolfexr No, because you just hook up to shore power. And also no because the solar aspect of this will offset approximately 0.0% cost vs your operating expenses so it's not worth thinking about.
Not my sort of thing but superb video. 👍❤️🇬🇧
I'll take one. wrap it up
Thanks Jack! Good luck to this "eco-power" owner..I reckon it's definitely going to be challenge marketing..and selling to others.
Massive beam but might cost in berthing. Solar is great when it can provide meaningful movement but rather than spots of cells, why not make the sides all solar cells from top to bottom and end to end which is both more power and aesthetically nicer as a single color. Same with the other placements, don't do a conventional design and mosaic cells in where they fit but think the entire roof as one continuous panel with no gaps and sharp edges. I would add telescopic roof sections that could be extended for more power, like setting sails. Overhang that provides shade isn't aesthetically unpleasing. A good looking solar cell can have an aesthetic techy look akin to carbon fiber weave and become a nice design element rather than an intrusion. I think the concept has very significant potential. Since most of the time is spent not moving, excess power could be used to create hydrogen that could be run in combustion engines. Basically make endless fuel. With more sophisticated systems it could be made into liquid hydrocarbon fuel for easier storage of large volumes but that's technically much more demanding.
And AI autopilot so it can sail without human supervision makes modest speed travel very civilized and work well.
Sweet !
How many crew can live onboard during travel
$8.5 million dollars sounds about right !
If people understood how difficult it is to build that ship they would understand the price !
$8.5 Million? I figured it would cost twice that.
Two 360kw electric motors? No wonder it only gets 100 nm at 6 -10 knots range at best! It must have some sizable diesel generators! Yes one in each hull.
Seems really great! I have $800
Same yacht, but a hydroplane. When I'm conquering nature, I don't want to feel ocean waves.
I WANT TWO. ONE AS A BACK UP...
That’s a Good Idea….👍
The "electric/solar power" hasn't matured enough to actually replace ICE. So give me a 68/70 Supreme (the best catamaran design, short of a front master cabin like the Aquila 44) with diesels.
Like your review. Slow down on the edit!!! :)
Roger that 🫡
Without diesel support you are a sitting duck in Bad weather and a approaching storm, fact☝️
Im guessing you use up the 150 nm then there would have to be a spare battery for emergencies. Say your deep in the ocean and need to cross 500 miles ruff sea yeah you get somewhere but better home in future they make it go 500 miles plus 500 miles more for back up
That 150nm figure us just on electric drive. It has the generators and solar panels to top up the batteries and extend the range - Jack
Daybeds on port side isn’t it ???
Price is very important, give us a hint next time.
It's in the description
Does this mean that the future of Yacht charter is much more affordable? Fuel costs are marginal here.
It is a very looking boat.
These range extenders you mentioned, are they power generators, like a normal diesel generators but without the diesel powered engines? How do that work, or are they top secret?
they are diesel generators. the manufacturer well knows all solar is not reliable.
Yes (diesel is a dirty word🤫).
To the zombiefied state indoctrinated big time and the truth is vilified! VW XL 1 production diesel hybrid at over 244 mpg most owners get over 280 mpg, and that isn't even factoring in bio diesel; thanks to Diesel Gate they stopped production. The best EV can get only 155 mpgE* and that calculation is a bold face lie multiple ways! The real elephant in the room is CO2 reduction equates to less fuel for plants thus less plants thus less O2 and less life. All organics are carbon based. We are currently in the Quaternary ice age in fact...avg temp in Antarctica is -55C... What are the odds they delete my comments...100 to 1?
They are just diesel generators. But the nice thing is that if you have a large battery bank, you can run the generator only at its most efficient speed until the batteries are charged, then turn them off. You don't waste fuel running tiny loads directly off the generator.
Correct, they’re generators.
Surely the OG of free energy for boats is called a 'sail'?
It's a good looking boat, but I would have to play around with the layout.(We really do need to get rid of the efficiency cap on publicly available solar panels. Oil companies aren't the boss of other business, why should we allow them to lobby for laws suppressing them? Gates's new yacht has on board hydrogen production power & that just needs to be made available for everyone, everywhere, right now.💅🙄)
generators that work as range extenders to charge the batteries and/or run the motors when neede
estimated price?
Fabulous
Generators are engines.
HOW MUCH?
9m
Took me a minute to realize “range extenders” are diesel generators. That is some tomfoolery
This is a beautiful Cat, but a slightly deceptive review, i think.
Great tour, nice boat, questionable power train.
What’s the efficiency of the solar panels after 5 minutes underway collecting salt spray? I call BS.
Fernando Alonso ownes one!
The battery seems quite small, considering electric cars have up to 120 kwh and travel on roads and are much much smaller and lighter...
My Ford super duty has a diesel "range extender" under the hood also.🤦
In case y’all were wondering, this boat runs on diesel fuel.
Where is the mechanical room ?????
The efficiency of the panels mounted on the hulls is suspect.
Мечта !!!!
I'm surprised that no one has designed a dynamo that uses the drive shaft rotation to recharge the batteries.
An ocean doesn't float downhill 😂
@@dagg497 You're thinking of Hydro power bro, a Dynamo is totally different.
It's been around for over 50 years, normally on sailing vessels though, the new "Electric" Leopard 45 sailing cat has prop driven charging under sail.
its a beautiful boat but the dishonesty of the marketing must be called out. "no engines, only electric motors and 'range extenders'". this utter kaku and perfectly illustrates the falsity of this "green" agenda. the so-called "range extenders" are generators, i.e. diesel fired engines. and they are not there to "simply" or "only" anything. they are there because the builders damn well know that 100 percent solar is unreliable. the diesel generators, in contrast, are very reliable. this sort of nonsense has to be stopped and if YachtBuyer wants to maintain its integrity it must be honest about these facts and not gloss them over with the manufacturers marketing schemes.
This is the first review I've seen Jack do
that seems to have abandoned his
informal, unabashed, no holds bared
treatment, in a walk-through/review.
Eerily reminiscent of a yacht broker
'review' .
@wildcountry.
Strawman reply, to the OP I assume.
Who is 'Esysman'.
Do you think anyone will see your
comment as addressing the OP
contextually?
Yeah, to completely run the boat on solar energy alone, meaning generate enough energy for not only the operation of the boat but, enough excess energy to charge a battery for use at night, the solar array would need to be 3 to 4 times that of the boat’s total footprint. I wouldn’t call it a “green agenda” though, as the technology already exists where land based solar farms installed in appropriately sunny locations provide more than sufficient energy generation to both the grid as well as to battery farms that collect excess energy generated from the solar panels for use at night, providing reliable and truly round the clock solar generated electricity. Tesla Energy is doing this and there are already installations like this around the world in Hawaii and Australia. This is just a company trying to capitalize on the increased interest in moving towards more green, renewable and environmentally friendly ways of generating electricity and as a company that designs and builds some of the most polluting things on the planet, they can claim that they are seriously moving towards green renewable technologies for their boats when, in reality, the technology isn’t yet sufficiently developed nor advanced enough to fully power a ship of this size with only photovoltaic solar panels. I will give them one thing, with their range extenders, it is technically more efficient to burn fuel to generate electricity and use that electricity to power an electric motor for driving a propeller, than it is to burn that same fuel to power a mechanical drivetrain. Yeah, it is definitely still a fuel burning engine but, it is technically a more efficient way of extracting energy from a fossil fuel. All misleading marketing aside, at least they are doing something to build a cleaner running Yacht.
@@bikersoncalli actually think @wildcountry at least has a point. I imagine a part of the agreement for being allowed to film on the Yacht was that the power generation and propulsion systems were to be addressed in a certain way as to sufficiently explain their functioning and to perhaps do so in a more generous manner and portraying things in a good light, choosing to omit some of the downsides or impracticalities of this sort of solar electric / diesel generator hybrid drive. Is that necessarily a bad thing, possibly, as it could come off as a bit dishonest as to leave out certain information that highlights the limitations of the technology could potentially lessen viewer trust in this outlet.
Range 150NM 😂 eh no
The should have named the yacht... "Big Bertha" lol
Should have backup power in case of an EMP attack. I don't wanna be stuck in the sea after WWIII broke out. EMPs would be flying everywhere. And that Yacht wouldn't be moving anywhere if it's electrical components get fried.
I wonder how this boat performs in difficult weather. The setup and interior seems to me more on the „sitting in the harbour“-side.
It needs a mast and a sail to give it range and speed. When you can store the same amount of energy kg for kg in a battery the world will be a different place.
batteries don't need the same energy density as gas because they are much more efficient at converting back to electricity than a combustion engine. But it's still way less even after conversion % applied.
They do offer a sailing version. Plenty of buyers don’t want the hassle of running a sailing boat and the compromises on deck space.
So, a multi million dollar gin palace that has a range of 100nm at 6 knots. And this is the future. And it's environmental impact is?
Ever since Silent Yachts proved the concept there have been multiple others copying them years later with exactly the same product: Solar powered catamaran yachts.
934HP 150 NM range and at 8.5 million? Hell no! Anyone try electrolysis to really extend the range on a gas engine? Or what about a zero point engine powered yacht?
stupendo
Silent yacht is far better🤗
lol
then why are they going bankrupt?
Seems like this yacht could get stuck out to sea with no power at the worst time (darky stormy weather with cloud covered sunlight). That would be a nightmare