that he has a great grandmother. take a look at our sports scoring. we say there were about never giving up sports life 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 but what use a lot food at pucks electricity grids such as those in india are outdated and the risks do we face? it's 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 meltdown. new k, a catastrophe under pens coast that released large amounts of radioactive material . the spot gemini is moved away from it, so i'll make energy device in many countries. it's becoming more popular again. like in the us, for instance, the in 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 button and 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 of course, are self done research into new types of react to she and the energy department generally favor smaller power stations. these reactors have

a capacity of just $300.00 megawatts, as opposed to a 1500 megawatt hour plan. to 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, a spent many years researching the safety of nuclear power plants, the aim is to prevent serious accidents like the 2011 disaster and fukushima japan . beside in just a few roads, they want to do

a meltdown test in japan, hydrogen to skate when the reactors fit in cloud 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 rods are placed in a furnace and exposed to temperatures of more than 2000 degrees celsius. even though germany itself has phased the nuclear power to must spelt a 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 tool. i think the freakish human reactor was also like want to react to account. so basically the same problems could arise again, sees,

and that's why there's so much interest when using these new cloud chip materials and s m hours. these are by so these studies are very, very important. and all of 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. meaning, account method has for auditing less nuclear material means that to me, event of a meltdown for the flow of heat would be significantly smaller. so we have certain that if we could flood it from the upside, is it 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. so the international atomic energy agency in vienna, austria sees the next generation of smaller reactors as the fuel. the director

general russell grossi says there's growing interest in eastern europe and both s m r's, unconventional larger scale, like walter reactors. he says, russia's board and 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 re appraised the fact that nuclear energy gets you a new nor most if not complete autonomy over your own energy generation on electricity production hands. and it is not by chance. you will see the enormous interest in eastern europe in particular. and with the having very increasing, we'd check. yeah. increasing we'd slovakia we grow a shot, we'd romania and even poland which was the only eastern european country that does not have to full 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. reactors are being built on all sides and yes, europe is in the hot spot for nuclear reactors. most building projects up out elsewhere in the world, especially in asia. the china is planning for. she saw the reactors which should go online in the next 15 years. rush that's as twenties following 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. the.

it's nothing short of gigantic spinning 60 square kilometers the equivalent to the $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. well, put a new site design deal. the sun shines here all the time. you get the whole world people, solar energy, it's infinite, production costs are low and the plants and maintenance costs are too low to let me submit that. got your perspective. in fact, many experts say that solar energy is now cheaper to produce than energy from coal . india is known reliance on the fossil fuel is one of the reasons it became the said biggest c o 2 emissions in the world. that's now set to change. at present, we ought at 40 percent in anything from law enforcement antenna is. and so if the target is going to invite 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 a to the just 50 kilometers away from the side of the pop from a rama. christian additionally is less euphoric. his harvest is failing due to constant electricity, causes that disrupt is engaged in system and regularly brake is water pump. sewage associated with lots of search product we live really close to the largest solar park in the world government. this is the result, and we don't get financing over to you so much over the height. i mean, this is why india is critical. infrastructure is a public electricity grade is in a poor condition. it hardly matches how much electrical power is produced because it's not reaching the people who need it for the un interrupted boss a place concern. so india's of india, smaller system, is facing

a huge challenges in terms off of a frequent ball guards. and it's because of the oil transmission and distribution systems. we have a ordered of over, you have a leaky, a ordered from the distribution infrastructure for that. we need to overhaul the r and the distribution networks for the distribution transformer need to be changed in sub 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, we can because but unfortunately it's not so easy to be like many of our colleagues have be injured or even died at work before we start work in the morning. we pray to god that everything will go well sometimes and that christian is forced to turn the power supply off, which is much less popular than guessing electricity flowing again. the,

you don't pay your bill once and they get to aggressive cut off. you've electricity that's, that's not right. we pay our bills in sooner or later in the summer. so those you can't pay take the risky stance of stealing electricity directly from the grid to them whether the electricity is solar generated or otherwise is irrelevant. the many people will divide dream of independence from the public electricity grant. my house, my. so the panels minus tricity, my heating, it's technically possible even in germany, but it's only one to 2 families show us how it can, what, what rebec whole for has made a home improvement. but many can only dream of. ready all this 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. it's about the item cornerstone. that's our warm water heating and main hurdle run on level tricity. take our self sufficiency rating loss, which measures that are told that maintenance is 98 percent system. that means we're independent. we'll be able to tricity grid on that. we'll find out whether that will still be the case through the winter that to same a to sing another house. over the long days of summer solar cells create an energy surplus. ready ready ready it's been used to charge a battery that supplies the house with the energy at night. ready as well as putting a heat pump. ready so forth motivating the home improvement. ready ready ready ready ready ready aggregates type of income to 3 reason, hide sustainability, reliability of supply and control of running costs, especially when i retire. i'd like those to be negligible. that's not the sun

certainly never sends a bill. the solar sales and the so it's facing part of the roof. our best place to catch it for regularly checks his tablet to see if the system is working properly. it shows him how much energy is being produced and consumed pets. i got a few coming up and reducing 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 charged up to 30 percent since early this morning. the whole. ready ready with this amount of backup generated in the morning alone and the full battery after only 5 over sun. ready should be able to see of the summer self sufficiently. ready but how do you store the energy of one summer's day for a long period. ready ready how does he think system splits? walter into hydrogen and oxygen. ready hydrogen holds energy and is stored in the gas tanks excites well secured for the winter. ready lindsay tough, it gets done, and you also see on that beautiful day yesterday,

hydrogen was produced the whole time it is. that's the blue block from the $100.00 from 9 am to 7 pm. so the hydrogen time is like 2 thirds fill. 63 percent, i think it took 5 weeks and 4 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 takes east of a few months ago. i actually look much more at the consumption peaks and, and i'd like to know what causes the stuff in taking very quickly, develop a feel for what seems more electricity with 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 as heroes. and if i came with a need and it's about not certain sensible, but what do they expect to say about generating hydrogen using solar power, free drink sick as an expert in sustainable construction and teaching at berlin's

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

sufficient space and good planning. as the herman finally shows the new word installation, so that we don't need so much a heat into winter, we're taking that's one thing. the other is that we have installed solar panels on the house on balance, besides the facade for the attack, and remained instead, yet but how do you get through the long said winter? hardly any. some lights are good in solution and a lot of solar panels enough, isn't that certainly that one is gonna be really fully self sufficient for $365.00 days a year. and that's collect means we generate molar road suite and electricity. it's a great story for everyone who lives here, how us one and the today cuz she's to. ready what role will solar hydrogen technology play in the future? and districts on how you get more systems of producing when prices will drop localism shoals and see i have even higher hopes for larger systems is like large fuel cells was large electrolyzer, large hydrogen storage tanks be done by which can then for example be used in

carbon alias, even some ions to supply, not just the single buildings think about the whole area. it's simply a matter of scale. the bigger the cheapest, carland football and for the occlusal 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 a hold of hoffman blocks to especially since hydrogen can be stored and transported in either gas or liquid form. 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. the projects of the future is in the making

it this wind farm in gemini. the plan is to use subsidies, 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 storm, all st across all like tricity 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 turbine strengths and exercises nearby. they split torture 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 the support the most pipe, which is fixed then directly into the ground and all the lights go down and then suspended them as well ahead. and the longest payment was not enough. those meters hydrogen will soon be pumped through this pipe into poor us rock design. and up to this you are 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. so 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 out of other stuff. what is it possible to transport hydrogen done words and not more dish 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 both? are, this interferes with that, so by the geologist? see it work. see a little bit entering. i'm sure to tennessee theoretically on, because this is the 1st project gemini, probably 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 a much smaller than natural gas. these pipes would also be closely inspected. some reasonable for executive is very nice. you have to go through the types of books and look at the history of the 5 and then the on that as a structural pressure assessment. and then the entire flight ask you this is done within inspection gave 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 the reason for the vantage because it means we don't have to take anything that can check the pipeline one that stood in the ground like quickly as the an optimal a few weeks later with that to see and 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 to not to damage its delicate technology is pushed into the an oak using a transport cheese which has been released off towards the end. okay, is closed 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 pneumatic cheat that these insect fuel and couldn't be, uh, you know, with this inspection we can determine if there are existing anomalies in the fight . and that means if the pipe is slightly damaged from environmental impact in the past, we cannot take validate and then replace the relevant part and knock them 06. the inspection is carried out in several steps and with various gauges, fast cleaning gauge passes through the ad, ok,

and when these to cause it's in the pipe then a geometry gauge checks the height to possible dense to find the gauges renee via magnetic fields. any anomalies like rust damage and any material weakness they may have coolest weak spots. so that replaced the we slowly the coolest of the gas pipeline. again, it leads to the next step. the fan will tell us station existing infrastructure can be used here to handle this corner maybe needs a few nozzles exchange. that would mean that the tire burner has to be replaced with comedies. and basically this 3rd street boy looks like the game plan. all the combustion chamber stays the same function that can stay the same. and the 3rd stream systems for the district destruction can be kept as they are guys is that means that technically speaking, not much for us to be changed for the hydrogen technology. service aging with

hydrogen, sustainable going forward. we asked an independent tax, but lots of stuff is for me or me. hydrogen is actually because the media room for our sustainable energy revolutions. and since i learned that we can make hydrogen ourselves, i've also understood that it's really possible for us to create an energy system based on 100 percent renewable energy within the next 2 and a half foot hydrogen. how is district teaching the 10s of thousands of apartments is set to become a reality by 2025. let us read. why do you have a science related questions? then send me to us by video, text or voice message. if we feature your question and i'll show, we'll send you a little surprised as the thank you. 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 the moon for a few days will realize it's appears at a different point in the sky almost every night. and that's a diff, a tight each day of the month. it appears around 50 minutes later, but it always rises in the east and disappears in the west. that's because the moon and the air move differently. the moon orbits the air civic 29 days. while the actual tapes once in 24 hours. that means that the moon's possession in the sky and its daily added to that is its tilted orbit. that's why we see it at different positions in the sky.

and it's more but isn't circular. but elliptical the that means the distance from noon to f changes depending on where the minutes on its journey. the on top of that mr. newton and also part of the sudden the movements mean. but the moon appears differently in the sky at 3000000. and that's it sweeney's as to what we're done. seeing the and sometimes it even appears in the middle of the day because the air spends eastwards on the 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 that we use science programs. whether you've been watching on your phone or tablet or tv, we have to enjoy this show. see you next time stick areas by the

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