success, even as that great grandmother, take a look through the wood or sports, all the scoring we say there were about never giving up sports flies every weekend on d w. the, we have all the technology we need for the energy revolution. moving away from fossil fuels is possible but what use a lot food at pucks electricity grids such as those in india, are outdated and the risks do we face if nuclear power has

a renaissance on the way to time is new to the hello and welcome to tomorrow today, this science program on dw the media how it was only a question of time. focus, fema, 2011. on a quick and synonymy trick at the mountain. a new k, a catastrophe under pens coast that released large amounts of radioactive material . the expect gemini is moved away from it totemic energy device in many countries. it's becoming more popular again. like in the us, for instance, the of the united states wants to speed

up its transition to clean energy installation reduction i passed by congress is supposed to be a big step in that direction. the department of energy is overseeing the process with a renewed focus on windham, solar power and nuclear energy. that by the ministration is very clear that nuclear is going to be a key part of our climate crisis mitigations. as we look toward a higher penetration of renewable deployments like wind and solar, that variable power needs to be backed up by something that supports a grid that, you know doesn't necessarily follow how the weather moves and nuclear power is an excellent choice for that base load power and in the united states, of course, we've been doing it for many decades, are confident and the technology transfer and huff costs are self done research into new types of reactor. she and the energy department generally favor smaller power stations. these reactors, of a capacity of just 300 megawatts, as opposed to

a 1500 megawatts power plant. advanced reactors in the united states have a lot of promise. you know, we'd really like to get to a place where we're building nuclear reactors, more like airplanes than airports. we have a history of going over budget and over schedule on mega projects, but smaller, more modular designs that leverage this kind of more assembly approach to construction should improve the economics, improve the timelines and improve the predictability of nuclear reactor builds, which will have an impact on the bottom line, affordability matters in power. but how safe are the new small modular reactors here in germany? because the institute of technology spent many years researching the safety of nuclear power plants. the aim is to prevent serious accidents like the 2011 disaster and focus cima. japan. scientists prepare

a few road. they want to do a meltdown test in japan, hydrogen to escape when the reactors fit in class. chips over heated hydrogen built up in the reactors pressure vessels, eventually causing an explosion. the scientists and cows were testing various materials that could be used for the cloud troops to see how they respond to overheating. the fuel roads are placed in a furnace and exposed to temperatures of more than 2000 degrees celsius. even though germany itself has phase low nuclear power, thomas felt thomas research is getting a lot of attention from experts around the world. the s m l small much in our records, the generation of s m, ours are small modular reactors that will come in the next 10 years or light water reactors of those 14. and that's why it's important to us in the district and she may react to it was also like want to react to account. so basically the same

problems could arise again. that's why there's so much interest in using these near cloud chip materials and s m hours. these are by so these studies are very, very important. and all these are the homes where they reached the smaller size of the new generation of reactors offers an advantage when it comes to safety. tom's research shows that the smaller amount of uranium in the react to is easier to control. passive cooling systems are an option, for example, to ensure cooling, even in the event of a power failure. really like how much god has for i don't think less nuclear material means that to me, event of a meltdown for the flow of heat would be significantly the smaller. so we have sacked and that if we could flood it from the upside, is we'd be able to hold the melt inside the react to pressure vessel or so that the radio new clients are not released into the environment to exit, to the international atomic energy agency. in vienna, austria sees the next generation of small the reactors as a future director. general rafael grossi says there's growing interest in eastern

europe and both s m r's, unconventional larger scale, like water reactors. he says rushes water in ukraine and it's going to talk to him . the energy markets have boosted that trend. many countries have a re evaluated the fact or, or re, a pre appraised the fact that nuclear energy gets you, nor most if not complete autonomy over your own energy generation and electricity production hands. and it is not by chance. you will see the enormous interest in eastern europe in particular, and with having very increasing, we'd check yeah, increasing would slow back. yeah, we grow a shot with romania and even poland, which was the only eastern european country that does not have to for have any

nuclear power plant. now now they are very aggressively moving into this area. while germany has closed all of its nuclear power plants, the trend and large parts of unit is moving in the opposite direction. the reactors are being built on all sides and yes, 0 is in the hot spot for nuclear reactors. most building projects us out elsewhere in the world, especially in asia. the china is planning for to solve the reactors which should go online in the next 15 years. russia times 25 is also far ahead of the us with 12 new reactors. india has been bought and vicious infrastructure programs and also wants to play a leading role in the expansion of renewable energy use.

it's nothing short of gigantic spending. 60 square kilometers the equivalent of $8400.00 soccer pitches this. so the park in india is the largest in the world. it's 6000000 solar panels producing twice as much energy as the average nuclear power plant. the site is a deal of the sunshine, so you're all the time you get the whole world, but your solar energy, it's infinite, production costs are low and the plants and maintenance costs are too low to mid chiropractic. in fact, many experts say that solar energy is now cheaper to produce an energy from coal. india is known reliance on the fossil fuel is one of the reasons that became the said biggest c o 2 emitter in the wealth that's now set to change. at present, we ought at 40 percent in everything from law enforcement and generation. so if the target is consumed by 2030 india would require around $800.00 gigawatts of

electricity install capacity. so i think 50 percent and that is 50 percent install capacity is quite, that's either just 50 kilometers away from the side of the box from a rama. christian additionally is less you for it. his harvest is failing due to constant electricity causes that disruptive irrigation system. and regularly break is was a pump sewage associated with the search product we live really close to the largest solar park in the world government. this is the result. we don't get anything out of it. you, somebody's over the audio looked outside. i mean, this is why india is critical. infrastructure is a public electricity grade is in a poor condition. it hardly matters how much electrical power is produced because it's not reaching the people who need it for the uninterrupted boss, a place concern. so india's and this policy is gonna be facing

a huge challenges in terms of a frequent fall guides. and it's because of the oil transmission and distribution systems. we have ordered a, we have a looky, a ordered from the distribution infrastructure for that. we need to overall d, r, and distribution networks for the distribution transformer, need to be changed in a suburb of mental radios, particularly in new york city is also affected by the problem. even the capital daddy power outages of frequent air in the heat of the summer when air conditioners are running at full blast, the electricity grid collapse is on a regular basis. and as we always try to fix the disruptions as quickly as possible, i'm about to use what we can because but unfortunately it's not so easy to to be like many of our colleagues have been injured or even died at work before we start work in the morning we pray to god that everything will go well. sometimes an extraction is forced to turn the power supply off,

which is much less popular than getting electricity flowing again. the you don't pay your bill once and they get to aggressive and come to a few though interested to us. that's not right. we pay our bills in sooner or later in the summer, those yukon pay takes a risky stance of stealing electricity directly from the grid to them whether the electricity is solar generated or otherwise is irrelevant. the many people world wide dream of independence from the public electricity grant. my house, my sort of petals, my electricity's, my heating. it's technically possible even in germany, but it's only $1.00 to $2.00 families show us how it to what whatever their culture has made a home improvement. but many can only dream of. ready his solar power system means

he generates his one electricity and he think he made the change in the summer. ready for the long winter ahead. nothing minutes of the item cornerstone. that's our warning. water heating a domain colored old runaway, which was to take, take our self sufficiency rating loss, which measures are told that maintenance is 98 percent. that means we're independent of the electricity grid i strong. we'll find out whether that will still be the case through the winter net to same that to sigma then how's over the long days of summer. ready solar cells create an energy suck less. ready ready ready it's been used to charge a battery that supply. ready energy at night. ready as well as putting a heat. ready pump. ready ready so forth motivated the home improvement. ready ready ready ready ready ready aggregates type, any kinda reason i'd sustainability, reliability of supply and control of running costs, especially when i retire and i'd like those to be negligible. his son certainly

never sends a bill. the solar sales and the search facing part of the roof are best place to catch it. pull for regularly checks his tablet to see if the system's working properly. it shows him how much energy is being produced and consumed pets. i got the fuel coming up inflator producing 4.5 kilowatts of solar power, right? know from, from, from the time consuming 500 watts. that means there's a bunch of clean or rolling or something in the short time bottle these 85 percent charge different up to 30 percent since early this morning. the. ready ready ready with this amount of backup generated in the morning alone and the food battery after only 5 over sun. ready should be able to see up the summer selves efficiently . ready but how do you store the energy of one summer's day for a long period. ready ready how does this heating system splits? walter into hydrogen and oxygen. hydrogen holds the energy and it's stored in the gas tanks that size well secured for the winter. ready ready lindsey tuffy gas time and did you also see on that beautiful day yesterday?

hydrogen was produced the whole time, and that's the blue block from northern and figured out this from 9 am to 7 pm. so hydrogen time just like to start spill 63 percent. it took 5 weeks and very, very quickly if needed a fuel cell can change the hydrogen back into electricity and heat. but so far is fast becoming an energy aspect. that's actually got a few weeks ago. i actually look much more at the consumption peaks and, and i'd like to know what causes the stuff interesting very quickly develop a feel for what and seems more electricity is a little less than me. and it's a shame that every household doesn't pass similar monitor. so and then everyone would see what uses more energy and what less everyone would benefit from this educational effect on these ad seals. and if i came with a need to go to us about certain sensible what, what did they expect to say about generating hydrogen using solar power? friedrich sick is an expert and sustainable construction and teaching at berlin's

university of applied sciences. he says the energy set up in an area that whole for folks is exemplary change of those feel and is equal to is. uh huh. i see it as a very good thing is, is that the system has been developed and made marketable. that allows surplus solar energy from the summer to be converted into hydrogen, bundle and use in winter and helping to create electricity on until 8 to the pool on development. that means hydrogen is an ideal means to store energy with the lowest spatial. so for this try, eating with hydrogen saves up to 2 thirds of the emissions in comparison to gas. but the technology is not mass produced and therefore expensive. the system costs just over 80000 bureaus. that's not counting the solar panels which are mass produced. and currently provide the cheapest energy around their use in the sustainable production of hydrogen is seen as the future for the whole thing needs

sufficient space and good planning as the firm on finally shows you how to do more than solution so that we don't need so much heat in the winter, you're taking, that's one thing. the other is that we haven't sold solar panels on the house on both the side and the facade to, for the tide independent instead. yet. but how do you get through the long said winter? hardly any sun lights are good in solution and a lot of solar panels enough. isn't that $7500.00 can be really fully self sufficient for $365.00 days a year. that means we generate molar roads and electricity dates. it's a great story for everyone who lives here. i was born in italy cuz she still. ready what role will solar hydrogen technology play in the future? and districts on how you get more systems are produced and when prices will drop, localism shows and see. i haven't even higher hopes or large systems like large fuel cells. was it large? electrolyzer large hydrogen storage tanks be done by which can then, for example,

be used in carbon areas even some ions to supply, not just the single buildings to get both the whole area is simply a matter of scale. the bigger the cheapest, carland football info includes all this device. we have solar power installation and hydrogen production. perhaps the recipe for a heating revolution at home using renewable energy to produce green hydrogen to heat your apartment wash. and that with for hold of apartment blocks too, especially since hydrogen can be stored and transported in either gas or link it for the infrastructure is already there and is being expanded. hydrogen can be transported in pipelines normally useful natural gas. there are already a number of pilot projects in germany. projects of the future is in the making it

this wind farm and gemini. the plan is to use up this wind energy to produce green hydrogen to reduce reliance on fossil fuels. in the cost of turbines produced excess energy, they have to be turned sideways so they wouldn't generate any know the school miles think across from wind power currently always needs to be drawn at the same time and all the energy is generated. we've now found a way to store wind power using hydrogen so, so this is how it works. electricity from wind turbines drying some extra lines, as nearby they split to share into oxygen and combustible hydrogen in a process called electrolysis for hydrogen to be available at all times. it needs a storage facility. the one here is on the ground and can hold 40000000 cubic meters of hydrogen across an area of roughly 6. hector's stands was

as a support the most pipe which is fixed then directly into the car and an overnight go down a dentist band to them. as well ahead and the longest payment was done us those meters. hydrogen will soon be pumped through this pipe into poor us rock to design it or to does he i tough law. this is a natural gas deposit and your, the gas accumulated here many millions of years ago. then it was extracted when it was exhausted and the deposit was converted into a natural gas storage facility. and the gas was injected in the summer and extracted in the winter. we get some snow, we want to store hydrogen here in the future. before that can happen, the pipes and storage facility need to be assessed for that hydrogen suitability come with the form. is it possible to transport hydrogen doesn't words enough for this on this, and then we'll have to see other button tv. i don't know what that might some hope process, the hydrogen is that, is there water that interferes with that? so the geologists say it works. you a little bit entering, i'm shocked to tennessee or you know, because this is the 1st project in germany,

fight to store hydrogen in, told us rock. it's endorsements as to where the hydrogen will then be transported, climate neutralise, and 42 kilometers to a combined heat. and power plant and alford using existing pipelines that a current, a transporting natural gas as hydrogen molecules and much smaller than natural gas . these pipes would also be closely inspected. some reasonable, restrictive is very nice. you have to go through the books and look at the history of the 5 and then the on that as a structural pressure assessment and then the entire up might possibly be done within inspection date as was to carry out these tests as well. gas is flowing, the device has to post through and, and it's a considerable and that's, this is the reason for the vantage because it means we don't have to take anything out of that. can check the pipeline, what it's doing in the ground, like cooking is the, an ottoman a few weeks later with that to see an inspection. the 3 me to gauge is also called

a pay cost. great. that because of its mobile joints that can inspect the pipeline from the inside in order not to damage it, static it, technology is pushed into the ad oak using a transport cheese, which has been removed off towards the end of his clothes and filled with gas. with the speed of to me just a 2nd to the gauge now stops. it's jenny with the flow of gas in a similar way to a new mastic, cheap insect fuel and couldn't be with this inspection, we can determine if there are existing anomalies in the fight in good. i'm so that means if i tell you this slightly damaged from an environmental impact in the past, we cannot take value and then replace the relevant part and knock them all 6. the inspection is carried out in several steps and with various gauges, fast cleaning gauge passes through the end. ok,

and when these deposits in the pipe then a geometry gauge checks the heights of possible dense to further gauges renee, via magnetic fields. any anomalies like rust damage and any material weakness they may have coolest weak spots. so that replaced the recently the coolest of the gas pipeline. again, it leads to the next dump them will power station. existing infrastructure can be used here to handle this corner maybe needs a few know 16 understood to be that the tire burner has to be replaced and comedies . and basically this 3rd stream boy looks like the gain by all the combustion chamber, stays the same function that can stay the same. and the 3rd stream systems for districts destruction can be kept as the are the items. that means that technically speaking, not much has to be changed for the hydrogen technology. service heating with

hydrogen, sustainable going forward. we asked an independent text, but lots of stuff is for me or me. hydrogen is actually been actually media room for our sustainable energy revolutions. and since i learned that we can make hydrogen ourselves, but also understood that it's really impossible for us to create an energy system based on 100 percent renewable energy to the next 2 and a half foot hydrogen. how is district teaching the 10s of thousands of apartments is set to the kind of reality by 2025 pounds. what is read? why do you have a science related question? then send it to us by video, text or voice message. if we feature your question and i'll show you a little surprised, was assigned to come on just on this

week. garcia from chilly wants to know the do the moon and sun always rise in the east? and at different times. anyone who follows for a few days will realize it appears at a different point in the sky almost every night. and that's a different time. each day of the month just appears around 50 minutes later. but it always rises in the east and disappears in the west. that's because the moon and the s move differently the the moon orbits the era civic 29 days. while the actual takes once in 24 hours, that means that the moon's possession in the sky moves daily added to that. is it tilted orbit? that's why we see it,

but different positions in the sky. and it's more but isn't the circular elliptical the that means the distance from noon to f changes depending on where the moonies on its journey, the on top of that is to noon. and also part of the sudden the movements mean. but the moon appears differently in the sky every night and that its sweetness as to what we're done seeing the . and sometimes it even appears in the middle of the day. because the air spins eastwards on its axis. the sun, like the moon, always rises in the east. for the time of the sunrise,

totally changes from day to day by one to 3 minutes in contrast to the restless moon the . that was this week's episode of tomorrow. today dw sized program. whether you've been watching on your phone or tablet, her tv, we have to enjoy the show. see you next time. stay curious by the

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