Gute Nachrichten vom Planeten: Saubere Energie | Doku | ARTEJan 14, 2022
you almost only hear bad things about the state of the world it's time to look at things differently we have good news for you from the planet example wind power wind turbines are too loud and too ugly no such complaints on samsung island in denmark because here they had a clever idea good news from madeira too no one is afraid of supposedly unreliable green energy sources here anymore because even if the wind doesn't blow and the sun doesn't shine, thanks to clever engineers the lights never go out without coal and oil and continue to live in prosperity in iceland energy change is no longer a utopia but has been a part of everyday life for a long time to stop climate change most people call for people to do without fossil fuels, but many consider a 100 percent switch to renewables impossible the clean energy argument pia is not enough to supply everyone, but a country shows that one of its clean
energies goes to the island the springs are hydroelectric energy, thanks to which Icelanders generate electricity throughout the year, Icelanders also use the heat of the ground volcanic were the first in europe to do so and today the forces of nature ensure its prosperity reykjavik is the northernmost capital in the world it rises like the whole country on a hot treasure the steam that rises from discreet silver houses comes directly from the underground rises with boiling water above engineer hildegard this sun and her colleagues pump from a depth of several hundred meters in total there are more than 50 wells available to heat the city icelanders use geothermal energy on a large scale at the foot of the volcano hanging title a just half an hour's drive from central reykjavik engineers have dug even deeper wells into the ground beneath ca gives one of the futuristic domes currents of up to 300 degrees hot steam from the depths today gives If there is a problem A well is not working properly It all depends on the volcano We know that mother earth tells us where to go and we have to follow her The pressure and the The heat has gone down in this well.
We still don't know exactly why. we have to work with the volcano as it is offered to us the engineers are trying to quickly repair the well so that it can bring it back to full capacity the hot water from the volcano is in abundance and also heats the country's swimming pools in iceland there are villages without pub but hot tools are everywhere they are the social gathering place btw splashing did you know that the english town of redditch also heats its public swimming pool in an environmentally friendly way the heat comes from the local crematorium when dead bodies burn enough waste heat is produced to heat the neighboring sports hall what swimmers what to do with dead bodies in the world could do anything energy is not the only thing volcanoes hit supply can use hot water multiple times flows through pipes branched up heavy headless power plant the most modern geothermal plant iceland here the engineers separate the water and steam the water flows to reykjavik to heat the steam produces electricity here the power is rated at over 300 megawatts before we used to heat our houses with water and produce electricity with geothermal energy only use coal and oil for this they had to importing from abroad we are now, so to speak, self-sufficient in energy about 45 kilometers from reykjavik there are most of the greenhouses in the country because here there are hot springs that farmers use to heat their greenhouses, so flowers can be harvested here year-round despite the short summer and cold winter when farmers used artificial light a few years ago. the business became really successful now they are independent of time of day or season and also for that they used sowing beren strom there is also another advantage, because icelanders produce their own vegetables they have to import much less. this also has a positive effect on the climate balance of the country and there is work here all year round. hot water in iceland is a very special part of our society it plays an important role in how the country was sealed it is the reason we are still here despite natural disasters like volcanic eruptions earthquakes and adverse weather the forces of nature have shaped iceland the country's rugged beauty draws more visitors to the island each year the biggest attraction is the geysers right next to a power plant it is iceland's most famous outdoor pool the blue lagoon its milky water is rich in minerals because it is pumped directly from the depths bathing fun and a power source in one place btw iceland has one of the cheapest electricity prices in europe and attracts companies from all over the world and that only with klimafreu finite energy in most other countries the energy transition can only be successful with wind power, but expansion is progressing too slowly e to stop climate change one of the reasons why some people are against wind turbines on their doorstep they made noise and spoiled the scenery the danish island lies in the middle of the baltic sea samsung the bullerbü charm of small farmers and the holiday island does not hide the fact that something unique is happening here right behind the beach it is about the future at the energy academy the singers discuss all questions about renewable energy and they too decide together what the supply of electricity should look like sweet energy the cornerstone the founder of the energy academy held a competition for this community in 1997 the government launched a competition to demonstrate that with the laws in force at that time, the subsidy programs and the participation of the population, a 100% renewable energy supply citizens drew up a master plan together with experts and samsung got the project but lack There was a lot left for the first wind turbine because the residents of Sam didn't want to be bossed around by outsiders; samsung wanted to determine for themselves how the project was going as well as electricity adrian kehr i have to go up and adjust some slip rings it fits pretty good today there is little wind expect the wind turbines regularly he has to turn off the wind turbine for this when the system is down it costs the operator cash who always rushes to be on site quickly but not because his employer pressures him but because of his own interest in samsung many things are different and that is nice to bring the systems do not belong to a company electricity but to samsung itself they are the operators of the wind turbines and that is why they earn money from the systems that was exactly the argument that many singers for those enthusiastic about the energy transition I own seven shares in di esem windrad that is approximately 1 per thousand there are many co-owners I really like that you are part of something that many want to do many people have with tributed to windrad if you own a part you feel a bit proud of the whole project and that's why there is also little resistance to wind turbines here for example because of the noise we can talk here so there isn't so much noise and then there's the psychological effect if you make a contribution yourself then the system suddenly learns less, shadows less and bothers a lot less because they belong too planning is important you wouldn't put them in such a way that it shadows a town from the start the songs always planned everything by themselves and no government told them how to do it.
They founded investment company cooperatives and designated building land and then ordered their first wind turbines together as they die. the loading hatch opened and the first wind turbine on the ferry came out which changed everything all these changes were something completely new it was a very exciting transition into a new era we would build the project with the switch to wind power was a success it might even produce more and earn even more money but it is also a holiday island the landscape should still be attractive for tourists the beginning eg it is a taboo for wind turbines you cannot see anything from the wind turbines it was just as planned we were very careful to make sure there were areas with wind turbines and areas for nature it also privately benefits many people in samsung wind power they have put up small wind turbines in front of their houses hardly any power sources are left unused in samsungs that the community has bought electric cars that are filled with solar energy and the citizens use the energy of the sun to Ra themselves at home, speaking of solar energy, did you know that a polar bear is a good boy?
The secret is its white fur made up of transparent hair and pigments so the sun's rays hardly slow down and it shines even its skin this black absorbs sunlight and converts it into heat works so well that white fur became a model for experiments with new solar collectors and who knows, maybe one day our roofs will look completely different because they want it on samsungs too but here they burn straw instead of oil the desam singers burned their straw directly in the field today they convert it into money you pay by weight and quality brings the straw to anne kremer is something like the straw magnate of the island instead of having oil heating in each house the heat now comes from a small thermal power station that works with electricity and the the surrounding houses receive environmentally friendly district heating which is also a source of energy farmer carsten christi uses the milk from the cows to generate rar energy apart from the cooling process that makes milk last, it leaves the udder at 39 degrees celsius, it has to be cooled quickly to 6 degrees and goes into a heat exchanger here, cow's milk gives up its heat to cold water, the water is heated in this way flows to the underfloor heating in the house 110 cows ensure cozy warmth at the christiansen family's breakfast table climate-conscious and economical people from all over the world come to the energy academy to listen to hermann zorn to find out how the little island works made the energy transition the secret to its success is the community has managed to convert to wind power meanwhile the disam singers produce so much green electricity that they even export it to the mainland samsung is relatively small and has less than 4000 inhabitants success is therefore not transferable everywhere but an incentive everywhere people doubt the
energies re ovables because they depend on the whims of nature for w sunlight and something else worries many if more electricity is produced than consumed, this energy cannot be stored for the times when energy is needed the portuguese island of madeira you also know the problem residents and tourists need more and more energy a large diesel power plant supplies some of it is bad for the climate and expensive diesel electricity is three times more expensive here than on the mainland because diesel comes by boat That's why engineers st
arted looking for alternatives long ago and found the most important resource in Madeira, water from the mountains.
For centuries the islanders have been using open channels called levadas to bring water from the mountainous north to the flat south as drinking water and for agriculture the levadas have a gentle slope so that the water stays on the mountain for longer and you can also irrigate there without these channels it would be carrots potatoes and other things vegetables dry up in summer this century-old feat that made southern madeira fertile inspired engineers decades ago in search of new energy sources agostino figuera works for the local energy company knows the history of the irrigation system and its predecessors initially it was only used to supply drinking water to the population and to irrigate the fields in the last century one can then have another idea it was used to supply electricity to madeira back then the engineers made digging tunnels into the mountain to collect the water that are still used today to generate electricity from hydroelectric power.
Surface storage reservoirs also collect it. The water for the same purpose from here. The water shoots up from the mountain. It drives turbines and produces electricity. Speaking of hydroelectric power. less in his imagination he invented a steam powered can without it the tot shoot much faster than the catapults that were common at the time and thus protect his hometown of syracuse from the romans his inventiveness was not enough the romans conquered the city was rebuilt just a few years ago by the renowned massachusetts institute of technology in the united states the surprise actually achieved the archimedean cannon shell nearly the speed of sound old hydroelectric plants alone were not enough to supply electricity to the growing population madeira and the many tourists the search for clean alternatives continued and wind power was discovered almost 30 years ago madeira got the first wind turbine portugal today wind generatorsthey provide electricity to about half of the residents of the capital of madeira funchal when the wind blows that is the trap there is no wind there is no electricity and no power cable from the mainland that could help madeira had to solve the problem problems only agostino figuera and his boss mari oh dem fernandez came up with the idea of combining wind and hydro power the energy is going to be stored like in a kind of battery in two tunnels at the plant in 2005 the engineers had large tunnel boring machines brought to the island through a four kilometer long tunnel leading a water reservoir to the mountain two years later it became operational from the outside only a small reservoir can be seen the real big reservoir is hidden in the mountain below the reservoir is made , the largest and most modern hydroelectric power plant so strange with a second reservoir the heart of the power plant e he control center from here, employees control where the electricity flows depending on their needs, whether the people of madeira supply themselves with electricity or the battery is charged in the morning, for example, consumption increases in the capital then it is they open the big valves that hold the water back on the mountain from the upper reservoir the water shoots down with full force and produces electricity for the island at the hydroelectric power station from here the water takes a new path flows further into the lower reservoir and stays here until night falls the later the afternoon falls the more the wind blows over madeira now fernandes the vision of energy storage at stake the strong night wind was not used because much less electricity is consumed at that time today supplies the power for special pumps at the hydroelectric power station the technicians are now charging the huge battery the idea is as ingenious as water is easy to use The electricity from the wind turbines is simply pumped up the mountain.
The water stays in the storage tank at the top until it is needed again and drives the turbines in the hydroelectric power station. The Tsokos plant is of immense importance to Madeira as it generates alone more than 50% of hydroelectric power is a model to follow for even more ambitious projects all with the same goal of using all the resources we have all the energy that madeira offers to ensure the future of people on the island the levadas have inspired engineers today they have wind and hydroelectric power for an ingenious storage system combines the flower island of madeira offers tourists much more than its extraordinarily diverse landscape it also provides it with increasingly clean energy a role model for other regions of the world fossil fuels should actually be thrown away, but for some e t is hard to imagine that existing clean alternatives for energy supply are enough for there are other energy sources that have yet to be tapped very few people know who surfs the Scottish island of ordne is very familiar with tidal currents and the killer waves all this is the basis for a new kind of climate friendly energy with waves up to 19 meters high and torrential currents it is also ideal for generating energy from the sea.
Hardly any other place in the world has this potential, but it was only recently discovered. 100 years ago, the town of strong was a stronghold of herring fishing. Today, there are almost no signs. from it john s experienced a new beginning as the energy transition in scotland loomed and a new institute was created email the european center for marine energy was founded in 2003 with eu funding in great britain and scotland today operates a laboratory of unique test at sea they have four test fields in total another one is in the planning companies and research institutions are investigating what is the best way to generate electricity from the energy of the sea because everything is still in the stage of proof there is always something new to see off the coast no matter how different they look the machines can be divided into two categories or they should use the strong tidal currents of the ebb and flow like this turbine whose rotor blades are driven by the current or inventors try to use the waves on the surface of the water as well with this sail which builds up pressure through the wave movement and therefore im It strikes a turbine that the machines are in place has a reason if a machine is subject to the forces in place not to resist so ü Excessive everyone in the world, but no one has yet made the breakthrough.
We see technical similarities, but someone could easily come up with a completely new concept that throws everyone else out of the race and that's what makes the research so interesting. Just before the first project at imec could start at sea, engineers researched different models for a machine in this concept, several interconnected segments are moved against each other by waves, creating pressure inside the machine that drives a turbine in 2004 the time had come and the first pelamis prototype entered the scene imec test ground for all the machines more are salt water the forces of the sea and the storms are a great challenge because the day before a violent storm over places the engineer effects artist rob leonidas wanted to see if his pelamis wave power plant had survived the storm well due to its similarity to the animal of the same name that bore the machine the greek name for sea serpent for repairs or upgrades the sea serpent had to back to 4 only here it was safe to go in and check for damage new cars can be tested at 30 km/h and if something doesn't work just stop but our machine is ruthlessly at the mercy of the more we already had a few sleepless nights when the weather gets really uncomfortable rob checked the holy of holies there where wave energy is converted to electricity ideally the power plant should Rated at 750 kilowatts of green electricity enough to power around 500 homes was one for Rob and his team painstaking research process The company tested its technology on folders for over ten years and new problems kept popping up In 2014 the company no longer he could afford the many hiccups and hit on skin people prematurely i am often asked how far along the investigation i would say as far as the g wright brothers when they first took off from the ground on a plane one of our clients once told me first we have to find the problems and then the answers power companies want to have er systems that are efficient and low maintenance they have to challenge seawater and its inhabitants the company Lassen marin is working on behalf of companies and research institutions on the coast today a research platform is going to be saved the company it only has a narrow window of time due to which the diver has to work quickly and precisely on the platform there are boxes with different materials that the researchers want to use to find out which lining best prevents the growth of animals and algae and therefore therefore increases the life of machines at sea some pioneers go bankrupt others celebrate their first successes thanks to you, electricity from the sea could soon go out of the socket the Scottish company orbital marin power has carried out the first test the stage was already over back it was in orkneys the first major breakthrough came when its floating tidal power plant was even ca peace of supplying electricity to the UK grid in a test run then came an even more powerful model with a single large underwater turbine, the plant produced more than three gigawatt hours of electricity a year with it can supply more than 800 families while so much already the third plant the size of a jumbo jet is under development it is to produce electricity with two huge turbines electricity can be transported to earth through a cable talking about new sources of energy did you know you can run cars with our waste can at least use the methane gas produced in sewage treatment plants a company in bristol england had the idea of converting a car and running it on biogas directly from a sewage treatment plant, so In fact, the sewage from 70 homes was enough to let the car run for a year, but it goes further in between the company has optimized the production of gas and there were already 22 buses in brussels with biogas each new technology carries risks that must be checked before they are used on a large scale in orkney the effects of the new machines on seal fish and whales are regular dead sighted by biologists in offshore fish-rich areas years examine on behalf of email if numbers or behavior of animals change each sighting either in or out of water is carefully recorded and over the years and in any climate only long-term observations can be made such reliable claims there are indications of changes in behavior designers have to revise the design of their power plants so far we have no indication that prototypes at sea have a negative impact on the animal world some seals even pass by curious what's going on these mammals know the waters all í outside much better than us and we know how to survive there, however, animals usually avoid our machines, but of course we have to continue investigating for much more until now, animals share their habitat with only a few machines, how they react to large energy parks remains to be seen exclusive marine research laboratory in orkney attracts students from all over the world at harriet private university you can learn to harvest energy from the ocean professor sandy care has been a professor since the beginning i am absolutely thrilled to be a part of this phase pioneering we are seeing something we call blue growth industrial use of the sea but only for clean energy generation it is an absolutely dynamic time something i will probably not experience again for me it is not just about renewable energy it is this connection between the economy, technology and ecology that's the exciting time when visions of orkney com They are beginning to conquer the world slowly but surely in the Canadian province of Nova Scotia They are already one step further here the sustainable company Marin Energy will soon supply the population with blue energy This floating power plant takes advantage of the tides and there is no calm like the one with wind energy at high and low tides always works and it can be calculated that it works so well that the company wants to upgrade to a total of 22 plants energy from the sea is another option for a climate-friendly future the participation of renewable energy in electricity production in the eu has grown from around 14 in just 15 years by more than 34 percent and more and more committed people around the world show that good is worth fighting for they try every day to make our world be a little better we think it's time for more good news from the planet
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