is by the has accused is rather of acting in the spirit of revenge and mode of these by the military consent of the attack and said the 3 men were operatives in almost as military way updates its pun. today this week, the team is looking at solar powered cars and asking why there are more on the roads i've been visible. and thanks for watching the sometimes the best right now that you see the highlight every week. nothing, not the discovery would change your mind. just click away,

find out best document trees on you to see the world, the subscribe. now to dw talking entry the the holy grail of electron mobility. so the power is cost for you. fuel from the sky gigabytes, worries about range and charging time. the simple but brilliant idea that let 2 companies who proceeded into bankruptcy. so no motors in germany and like in the netherlands to be seen does a lot of ways to ruin the concept. they put everything into building their own sort of costs and fails. so what's the big deal break? how about? so the cost, the 1st we need to understand how they work. that's why we hit an awesome on

germany with a solar ice team that's on the bottom. so this is one of the most efficient electric vehicles in the world. yes. i mean, you can look at it, right. it looks like a ping pong table basically. so it doesn't have too much in common with the normal car. this is and we'll do it back back in 2017. he was one of the founding members of teams on barton, in 18 to participate in solar racing competitions across the world. for example, in australia, i mean that it looks a bit like a soapbox like yeah, like a desktop you could say and it's and a little bit it writes like that too. so how many kilometers do you care of? depends right. depends totally on the sun, right. if you're driving without the sun, it could be around 600 kilometers. that's a rather small 6 kilowatt hour battery. but if you have a good sun direct sun like, then you can drop and definitely fix it. you can just keep going. of course,

it's depending on the speed then, right? if you don't have too much sun, you have to go slower. yeah. and it has a top speed of 120 kilometers per hour and is covered in full square meters of so the cells and it has only 3 wheels with the engine sitting directly in the wheel in the back of the car to be sufficient. as possible. aerodynamics key. just to give you an idea how light this is when i do this, like the whole cause taking. how much does it weigh? it? it depends little bit on the battery chemistry, but somewhere around a 160 kilograms. okay. yeah, it's just purely made of the carbon fiber. uh, everything is, is mills out of titanium or allow me medium car or fiber. so light weight is, is definitely the way to go because everything else is more rolling resistance.

holding resistance needs more energy. the 1st sort of car was even the lights on in 1955, william g called at general motors design, the son mo bile, about the size of your hands. in 1962, this 50 year old model baker was equipped with solar cells in 1980 research as at til of university gave the best to the ugly duckling, a tiny call with solar panels on the roof and put but building. so the cost is a bit more complicated than just slapping solar cells onto a tiny com. the 1st big challenge is the suns angle, solar cell to generate most energy, when the panels perpendicular to the sun, that's why some sort of pox even turns out the day. but everything on the cost is fixed and round. that means so it's the operating in the less ideal conditions unless you own a competition car during the mandatory stops while the racing, they can pop up there. but so you stop pop up the hood and then you basically have

the perfect angle for the sun. just sign on the yeah, i don't see that with any normal kind of happiness. the 2nd challenge is that you need to use special solar cells. these cost about 35 grams on the top. we have. busy all across the crystal and silicon cells, right? how efficient are these? so these are around 25 percent, right? and it was 4 square meters, so it gives you roughly a peak. i'll put off a kilowatt hour. obviously the same sales, the on roof these days, for example, this one you can find on. yeah. on groups for example. but the difference here is the encapsulation, right? this is a very efficient, a calculation that traps the light a little better than you find in the stuff on the move because the stuff in the roof and, and also commercial seem to come solar cars has to be more doable, right? don't scratch so fast. and because, as i said, we don't want you going to touch them, and that is not feasible for, for commercial vehicles. but the real crux of commercial solar costs is that they

are much heavier than they raise costs. and so i can only produce so much power. that's why making them run only on solar poa is really, really hot. like every other electric vehicles. they also have batteries that can be recharged on the grid. but the solar cells are actually web bankruptcy started for solar cost offs like so much as from germany and light, you know, from the netherlands because manufacturing the south is quite complex. usually, panels are straight part in solar costs. they need to be carved. the electronics become more of a challenge when the, the surface is quite curved. this is less hoss slot, co found out flight. yeah. he also comes from, so that's how racing. because in one sort of cell, is it looking at this on, in a different way than the other side of the cell. and then you need complex attic tronics to, to still get most of the yield of soto. but that's not the only challenge the cells should be robust and shouldn't spence out if the car crashes and integrating them

into a cop out isn't easy either. so you start re floss, then what you add is a kind of a conductive back sheet. it's gold. so basically it's a printed circuit board, but then flexible, and then you pick and blaze the solar cells on top of that print circuit board. buying the machines, buying the materials, developing manufacturing processes. and after you did all that, you need to get your newly developed. so the cop pods certified for every day streets. all of those costs a lot of money sign motors would have needed to to 300000000 euros. just to go into mass production. know pocket money for stop. about solar sales are only one part of the puzzle. the other one being how many kilometers you actually get out of it. and that's why it's a lot of things to consider. the size of the solar rates bigger means more generates at the energy location on the globe. some countries get most on then

others time of the year, of course, shading dust on panel of solar panels aging which makes them less efficient and more, you know, they have studies that fact it and some of the things but not old and it's mostly calculations and not real will long term tests keep that in mind. so how many kilometers do you get out of this? well, it's varies. anything from 293 kilometers at the low end to $3400.00, up to 5100 kilometers per year. a problem is that all these studies assume different parameters like size off the soda, right? possible power output, whether the shades or not a, just an example of how much of a difference that makes that only increasing the p v area by half the square meter you already get 2078 kilometers, instead of 1444 kilometers per year. that's what so new motors and like you did,

they increase the size of the soon rate. so know when for 6 and like you have full 5 square meters, projected ranges with $34.00 or 70 kilometers per day. both promises that couldn't be kept. so no, it couldn't raise enough cash. the company is restructuring. i'm selling off that. com and you factoring capacities like your underestimates of manufacturing costs. they plan to sell that like a 0 full 120000 zeros, but increased it to 250000 bureaus. due to expensive comp pots they filed for bankruptcy in 2023. it is a very low volume exclusive. can you go that when financial markets change and a lot of focus comes on the actual margin to the products generating then this, that project is not the perfect fit for the market, right? so that's why we'd have to restructure. they are now trying to build a cheap, a cock cold like you to buy are still looking for partners and investors. the us start up at 10 remotes us, which shut down in 2011 due to lack of funds,

but came back in 2019 with new back cuz looks also great on paper. 643 kilometers a range. 64 additional kilometers per day. costs below $40000.00 us dollars. bots. when nbc tested the prototype, our test model had some obvious flaws and it could barely make it uphill without overheating. our. i think you're the 1st person ever drivers on groups. not a good look. bought the actually already. so the costs on the roads, well kind office. so the cost, the young dies will not talk, for example, hybrid car with a solar car roof, which under ideal conditions will give you to 3 to 4 extra kilometers per day. yeah . not that much. it's more of a nice to have design future talking to industry experts and cost suppliers, big common factors most looking at. so levels as optional. so it's really hard to predict how many vehicles will be actually equipped with it if we don't

fundamentally change because the parents of solar panels impact will always be quite limited. but what happens if you blow one parameter completely out of proportion? something that is being tested right now by the truck manufacturer, us scan yet in sweden, in collaboration with oops, at our university. rewards file that has been going on since september the 20, 23 instead of 2 square meters like most cost, the hybrid truck has 113 square meters of solar cells that charge a battery in the trailer for an estimated 5000 kilometers of edit range per year, we expect maybe somewhere around 5 to 10 percent of the energy that that can come from so not in the gym. and that's why i should say that that is also is we've done it, which is um, maybe not the best place to test this. this is eric johansen. he leads the trial and is in charge of the scientific data collection. what book you have seen before? it looks to be your other segment of what we expect actually. so that is um,

what most surprising similar they even ran the numbers for southern europe and that could turn out twice as much energy. so there are some great use cases for solar. when vehicles are very light and they are deployed in sunny regions that can soonest with these deliberately tries that goes all these small boxes for public transport and nigeria that mainly run and so the power so the cost to manufacturers almost when spots we don't know how much energy we're going to get out of it at which point today you can already put a solar panel on your roof and power. your electric vehicle. it's through your cost roof. is that weight that can be used otherwise, but until that has an impact, it's going to take a lot of time. the, if you did like the video, please share like and subscribe to all channels. we personally,

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