the, the welcome to put tire timelines, capital for 6 tourism in germany. if you go to a faucet, you do pay twice or $3.00 times as much and you get half the service. in 2023, a documentary uncovered corruption and child abuse. the youngest one, for example, let me show you this was her. now the film team investigate the was executive have

changed. the red lights, dark shadow, 6 terrace in stossel, the 16 double check out this documentary from the late seventy's. the light is converted directly into electricity. no moving parts. it's the perfect solar machine. people are fascinated by photovoltaic solar cells. it's just, they were outrages lea expensive. this is the biggest collection of photo sales ever assembled. it cost a quarter of a $1000000.00. it only produces enough electricity for 3 or 4 families. and that's what a rival technology came into play. large mirror us that's can also to, in some beams, into electricity by focusing the light from the sun and using its heat. what you're seeing is the world's 1st commercial solar and electric power plant, the,

it's called solar, one concentrated solar power seems like the most promising solar technology, big event, but skipped to today. and it's been almost completely forgot the story behind it. this one of great expectations, your queen consistent and reliable energy. equally big disappointment that present doing this project failed. and may be one of revival, because concentrated solar can do one very crucial thing that sold a sales cons. oh oh oh. you might have seen a concentrated solar power or see is p plants that looks like this before. especially if you into your hollywood, sy fi, the sp tons can also look a bit less futuristic like this. but it's fundamentally they work the same way. they use a mirror, us to, reflects and concentrate some lights. it's cheap. they could, i mean, did that, should that, that is coming from this? i need this is chevy, a lot of who call themselves

a csp evangelist. he's a mechanical engineer who has worked on many concentrated solar projects around the world, showed up on 17, i believe, a $1000.00 times designed united lucky. but in this type of csp plants, that particular point would be the top of the tower inside it. as a fluid, purely molten salt, salt salt, and it's a liquid form that gets heated up by the sun's energy. hot mold sold to spend compounds with generates up that boils water to produce sleep. which in turn can be used to spend a turbine that generates electricity the same time that you can cost, you know, i'm not a small, uh, let's say the function by the time. but we solve the problem even if you need function flow. after that, the salt has cooled down, so it gets pumped up, the tower, and the cycle stops again. and for this process to work properly, do you need a lot of direct sunlight, which is why you find some plants and countries like chile, morocco, the united arab emirates,

or india. but most of them on the hot pots of spain and the us. so why is it that when we hear solar energy, most of us immediately think of photovoltaics solar cells and not mira's, but concentrated sunlight? i'm old enough to remember. in 2010, no say we bought super optimistic about solar time on industries to generation. jenny? chase is a solar analyst at the energy research from bluebook any? yes. back then that, well, for example, big dreams to set up huge, concentrated solar plants and this a hot rock and send the electricity to europe via cable for a long time. so this type of was the main utility scale. so technology, however, what happened then was that somebody, that's a technology company. take photovoltaics, go super cheap. in a little over a decade, the price for electricity from solar photovoltaics dropped by almost 90 percent. there were a bunch of reasons for this main, the policy support in germany, which kicks out to the growing solar industry in china. we covered them in this video,

you should check out after this concentrated solar power also became cheaper to in 2011. it started costing more then foldable takes today. it's more than twice as expensive. this meant people begin to turn away from it and put up the cheapest solar panels instead. it wasn't so much that sold a demo last, it was one of the federal ties. one that is also because we've sold a family or concentrated solar. every single mirror needs to individually track the sense of movement. so they always direct the race to exactly the right points. and depending on the size of the plants, this could be thousands of mirrors. and then you have to account for clouts, which may block one part of the mirror of fields, but not all of it. that makes it hard to control the temperature at the top of the talent which needs to stay within a fixed range compared to all this solar panels are just pretty easy to handle. when you put it on your roof or when you put it on the field or when you put another lake or wherever you put it, it's just very simple. if this is richard, tony who's been research and concentrated solar power technology and policy for the

last decade, it's just sitting there and patrick came and maybe from time to time, but it's not operationally complex as csp where you have mirrors and you need to adjust to you know, under real environmental conditions, csb ponds are generally also custom built, which makes them expensive. so in order to make them what that they need to be big, which means more challenging to engineer and handle a case and points this make a project. welcome to the future of power generation. crescent students in the us state of nevada was supposed to revolutionize clean electricity. because that will things $1000000000.00 to builds. and when it started to run in 2015 expectations were high. and then the problems began. never reached, it's expected everetts outputs, which was supposed to power $75000.00 homes also because there were lots and lots of outages due to technical problems often to do with the molten. so the plot used to most of so is a paid to work with because if something does go wrong and it drops below it, some,

it's melting point, then you didn't have both. and so any of all you have started salt, and then your pipes are full of solid sold, and this is a big pain to sort out one time the plant had to shut down for 8 months on, and another time a mazda sold thank leaked and the ground cars contaminated so the entire tower had to be taken down the pond eventually close then solar was of the company behind it ceased to operate. they were really, you know, they were really rock and roll. busy and silicon valley type of guy, so they were okay, we're going to revolutionize the world and we need to build lots of these towers and they were, you know, move past and break things. and, and turns out for csp that wasn't the right approach, right? because they need to figure stuff out, do operations, and maintain and spend the night spending it, it, it takes some time. chris and dunes generate small amounts of electricity again, but a ton is the image of the csp, particularly in the us, which hasn't built another big plant since other mega projects like the idea to

build big plants and the so how about the power of europe also fell flat today, and all of the world's plants taking together have a generating capacity of 7 gigawatts, for comparison. the $1700.00 gigabytes of photovoltaics solar panels out there. so sees p is never made it big, and it's seen its fair share of setbacks. but there's one reason why we shouldn't give up on the idea. yes. and that's the same reason why china has been building many of these in the past years. because that's one thing that fordable takes come to think about virtual techs is it really does not generate that died, but concentrated sola can new of plants don't just heat hot multiple sold to you straight away. they also have big tanks to store it once it's hot, it only costs by $1.00 degree celsius per day in that and can be used to run the turbine. it's a lights up points like after the sun has gone down. cool, and lots of people are using lots of electricity all at once. it's important to have these clean sources of energy. we can dispatch around the clock as we pluck more renewables into upgrades,

because they only work when the sun shines with the wind blows. having this flexible supply might also justify paying a little more for the future of csp, move to a different, nice right side and used to be a power technology like wind, mtv. and now it's really very much a storage technology. is it ralph? cause other ways to store electricity like lithium ion battery is that now often get billed right next to solar farms. but that's typically used to shift up to 4 hours worth of energy. you can build big a batteries to cover the night for example, but that will be very expensive. since what the salt is quite cheap, it's more economical to use this for longer periods. it's also possible to use electricity from sol dependents to heat up the molten salts, but that's less efficient than directly using csp to capture the sun seats, at least the places with lots of sunshine. see. so here's the, the dog and it's about 6 they use because we lost the dice on energy above the realities. for the provision of knots on the special energy visits. there's nothing

that's the street. this is craig, what's the c e o a fast company that's working on new designs to fix the problems? concentrated solar power them had in the past. with the system. you know, we have solid family noise, harps, sunny places you end up needing to the fossil fuels, so they're not time energy. they already built a small demonstration plant and eastern australia to prove that technology works. the next step is to build a bigger ones with 8 hours of storage. this report by the us national renewable energy and the board tree. so if that's the manual, it was compiled after the failure of crescent units and analyzes all the problems. it's and other sees the plants and accountants and that's, that's really great. cool, because, you know, as you can learn from the mistakes of the past, and there's not really a feature that the technology. as you can see, they build several small talis, instead of one big one. they say this makes it easier to build and to vary the size of plants without having to come up with custom designs each time, which saves money. also it's liquid sodium, so

a metal and not molten salts that's circulating through the system. if this becomes solid in case of a shut down, it's easier to melt again, consults the boss than not the only ones that took an interest in the csp reports that become the, the chinese use bi engineer come book like that, a bite of what has now changed every thing for us is p at the moment, is that china is, you know, getting into a big, china is re discovery and concentrated solar power around 30 plants and development label than anywhere else. that's because every renewable talked with one people with capacity now must include 10 percent of storage. and the government issued this notice saying it will support the large scale and industrialized development of solar thermal power. or the idea is simple. during the day you use solar p, v to produce cheap electricity and concentrate that sold out. so he talked to

storage things. then at nights when the solar panels lie idle, you use the stored heat to run your turbine. so what does this mean for concentrated solar kinds of technology? really state to come back? well, a lot depends on whether china sold a tile us become a success and, and the sort of a tower been have a real possibility of developing economies of scale to, to really figure out which harvesting works. and then we'll hopefully see the same thing that we saw with p b or with wind, that the supply chain gains from china really enables or a cheaper or better products that will be available will also in other countries and, and africa potentially in europe potentially in the us, but this would also mean those other countries have to see the potential and put policies in place to support the technology without supports and will be hard for csp to get off the ground again. either way,

it will likely never get as big as people one still templates solar cells have one of the technology raise and catch at the mass market. but speed might've fountain unique and it will be exciting to see whether it can fill it. had you ever heard about this crazy looking solar technology and what do you think about it? let us know the comments and don't forget to hit subscribe because we have more videos like this for you. every friday, the the federal mismanagement, no jobs are few prospect televisions the view, the protest, and us tire. why the mind, types to be match with such brutality conditions holders come in. and i just make

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of whales and tassels. the results of the ocean conservation start september full dw, the hello, and welcome to the 7 to 7 percent. so this week we are in 10 years capital nairobi west since june, mississippi. and indeed, the rest of the country has been turned into a political stage. the remains of protest by young people and some even lost their lives. more coming up on this very special edition. so i'm either on the now is you've seen any images from tenant lately? you may notice that today is a very quiet z jane. a ruby. there are no chance in crowds must just lead no to augusta. but since the june young tendons have been gathering on these 3 in town halls and also online now initially the mostly just before the test as one to the controversial find.