energy

Almost 20 years ago Iceland stumbled across a pocket of magma by chance. They found a vein of unlimited energy

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The search for alternative energy sources to classic fossil fuels has led countries to use the resources they have available at their fingertips: (it is not the only thing but) Spain has sun and wind, Japan has waves and Iceland has volcanoes, many volcanoes. But unleashing the full potential of geothermal energy It is difficult: to begin with, to understand how magma chambers work, science has studied lavas that have already erupted, however they lose essential information when they violently come to the surface. This data gap is a huge obstacle to taking advantage of it, but an accident that occurred in 2009 could change everything: a drilling Iceland Deep Drilling Project touched live magma when no one expected it at just 2,104 meters deep, in the Krafla volcanic field, in northeast Iceland. What began as a mishap has become a fascinating geological experiment in recent history and a real gateway to safely exploiting geothermal energy. The discovery. Upon contact with the magma, the drilling fluids cooled the molten material in a few seconds, generating fragments of volcanic glass. This glass is a treasure for analyzing magma: normally it is not possible to carry out an analysis with the material that comes out of volcanic eruptions because it is shot like shrapnel, changing temperature and pressure. But a new study led by Janine Birnbaum and her team at the Ludwig-Maximilians-Universität München in Munich have analyzed these crystals, solving yet another little problem: that rapid cooling distorts the chemistry of the material. The analysis yielded good news: the magma was stored in conditions of saturation of volatiles at lithostatic pressure, that is, completely loaded with energy and gases, despite being so close to the surface. Why is it important. It has two most advantageous direct readings: that it has more usable energy than previously thought and that it can be drilled in a controlled manner without exploding. From an energy point of view, it is revolutionary because it validates the viability of Magma-enhanced Geothermal Systems, an evolution of conventional geothermal that seeks to extract heat directly from the vicinity of a magmatic body or superhot rocks (when they exceed 374 °C). A well under these conditions has an energy transport capacity between 5 and 10 times greater than traditional geothermal energy, as CATF explainsa nonprofit organization specializing in energy policy. But for the first time there is a robust mathematical tool to predict the behavior of magma during drilling. This is essential for security, critical when considering this resource as exploitable or not. In fact, it can applied already in a veteran projecthe Krafla Magma Testbedwhich has been running since 2014 with this goal in mind. Exploitation diagram of a superhot rock. CATF Context. Iceland sits on the Mid-Atlantic Ridge, the border between the Eurasian and North American tectonic plates, making it one of the most geologically active territories on the planet. Nearly 30% of its electricity already comes from geothermal sources and almost 66% comes from renewable sources, according to IRENAbut this constitutes a giant step to continue delving into geothermal energy. Until now, conventional geothermal energy is limited to extracting heat from groundwater at temperatures between 150 and 300 °C. He IDDP (Iceland Deep Drilling Project) is the research program in which both scientific organizations and Icelandic energy companies have participated since the 2000s. Following the 2009 incident, the KMT project emerged in 2014 with an even greater ambition: not to stop at drilling near the magma, but inside it, but in an intentional and controlled way. How they do it. The methodology is based on the quenchingthe rapid tempering of the samples obtained by drilling the magma, which become vitrified. The scientific team analyzed its water content, carbon dioxide and the structure of vapor bubbles that formed during cooling. From these measurements, they built numerical simulations of how bubbles grow and are reabsorbed under different pressure and temperature trajectories, using H₂O and CO₂ diffusion models. already validated. These models use the speed at which bubbles try to escape the magma during drilling to reverse engineer what the exact pressure and volatile content were before the drill bit acted. The solution they obtained was magma at a lithostatic pressure of between 50 and 57 MPa and a temperature of approximately 900 °C. The KMT’s plan now is to use this model to design the two wells it plans to drill. Yes, but. The model is solid and the paper has passed peer review in the demanding Nature, but the engineering challenge remains stratospheric. Just because magma is safe to drill into in theory doesn’t mean it the engineering to do it on an industrial scale is resolved (spoiler: it is not): it is necessary to use materials and sensors capable of withstanding these extreme temperatures in a sustained manner and the chemistry of these environments is corrosive. On the other hand, there is geographical limitation: this technique is mainly applicable in rift zones or hot spots where the magma is at reachable depths (less than five kilometers). Expanding this technology worldwide will require drilling up to 10 kilometers, where the pressure and heat exceed the current capabilities of most oilfield and geothermal services companies. In Xataka | It is very cold outside the European Union: this is something that Norway and Switzerland are discovering with the gas crisis In Xataka | With oil skyrocketing, Japan has resurrected an old idea to extract infinite energy from the ocean Cover | Diego Delso and Einar Jónsson

the “cannibalization” of energy

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Spain has held an indisputable title for years: it is the European leader in the signing of green light ‘mega contracts’ for large companies. However, this gold medal hides a dark side, a true paradox of “dying of success.” While the continent suffers the blow of the very high costs of fossil fuels due to the conflict in the Middle East, the avalanche of solar panels in our country is bursting the market from within. According to the data provided The Newspaperthe prices of these long-term agreements (known as PPAs) have fallen by 13.5% at the start of 2026 alone. The megawatt hour (MWh) stands at around 32 euros, marking historical lows and being cheaper even than in the worst moments of the economic stoppage due to the pandemic. The ghost that walks through the sector. The word that resonates in the offices of the energy sector is “cannibalization.” The immense solar capacity installed in the country generates a traffic jam: in the central hours of the day, when the sun shines at its maximum splendor, all producers pour their energy at the same time. This brutal excess of supply compared to demand causes prices to sink. The chaos is evident if we look at the figures. Five Days points out that in the first quarter of the year Almost 130 hours have been recorded with negative prices. This is destroying the value of PV projects on paper. According to the same newspaper, the price of a photovoltaic megawatt “ready to build” has plummeted from the 150,000 euros it cost four years ago to less than 30,000 euros. For large corporations, contracts are being signed at “knockdown” prices of between 15 and 20 euros. From promoter bankruptcy to national shield. The business is no longer a bed of roses. As explained in Five Daysthe drama for the promoters is that there are almost 53 gigawatts of solar energy with connection permits granted that “are not producing.” That is, there is more power paralyzed or waiting than what is currently installed and operating (52 GW). Faced with this panorama, and with interest rates skyrocketed by geopolitical instability, banks have turned off the financing tap. Those who entered the renewable “boom” late and without financial muscle are now facing bankruptcy. But here comes the paradox. The promoter’s drama is the country’s lifeline. While the European energy bill has increased by 24 billion euros due to the crisis in the Middle East, Spain’s strong renewable generation sank the wholesale price by 20% in March. The President of the Government, Pedro Sánchez, took advantage of this “green pragmatism” against the “dogmatism of fossil fuels”, ensuring that the ultimate goal is for Spain to offer its industry “the cheapest electricity in the world.” So what’s going to happen now? The sector is forced to mutate. The analysts consulted by Five Days They are blunt: photovoltaics alone are no longer of interest. The future lies in hybridizing plants with wind energy or, as he also points out The Newspaperinstall large batteries (BESS systems) to store that cheap midday energy and sell it at night. Meanwhile, in a troubled river, fishermen gain. With small and medium-sized developers drowned, large Asian investors and long-term funds are taking out their checkbook to buy projects at bargain prices. For their part, buyers and sellers are introducing new clauses in contracts to protect themselves against unforeseen fluctuations in the market. The European contrast: Brussels asks to accelerate. While Spain deals with its own solar crisis, Europe is desperate to accelerate its transition to escape foreign dependence. The European Commission has just presented your plan AccelerateEUwhich aims to provide immediate relief to consumers and accelerate clean deployment. Brussels’ emergency recipes include tax cuts on electricity, reducing the price of public transport and prohibiting supply cuts to the most vulnerable families. In addition, the EU requires maximizing existing renewable infrastructure and improving the network. On a national level, Sánchez has committed to the sector that connection to the network “will not be the obstacle” to developments. Tame the turbines. Spain has won the solar installation race by far, but now faces a painful maturity crisis. The great technical and economic problem is no longer how to generate clean energy, but what to do with it so as not to destroy the very market that supports it. In the current and turbulent global geopolitical scenario, the dilemma posed by the Executive is unappealable: either we choose “turbines, or turbulence”. Spain’s immediate challenge is no longer just to plant more panels, but to tame those turbines so that they stop devouring each other. Image | Photo by Derek Sutton on Unsplash Xataka | Germany is building Europe’s largest system of artificial lakes thanks to something: abandoned coal mines

Spain continues refining oil and, once again, is once again Europe’s energy lifeline

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The closure of the Strait of Hormuz has caused panic in Asia and set off all the alarms in the International Monetary Fund (IMF) and the International Energy Agency (IEA). Faced with this global shortage, the Spanish system has done its homework. According to Agency EFEour country’s refineries have made their operations more flexible to maximize the production of petroleum derivatives, backed by a supply of crude oil that, for now, remains secure. Gonzalo Escribano, principal researcher at the Elcano Royal Institute, explains in statements to EFE that Spain has “specialized and better adapted refineries” than most of its neighbors. The contrast is blatant: Italy or Germany made the strategic mistake of closing 20% ​​of their refining capacity in recent years, outsourcing production to the Persian Gulf or to chinese refineries. Today, that decision is taking a historic toll on them. The real crisis is in the derivatives. It is easy to look out the window and think that the energy apocalypse has not arrived because there is still fuel at the gas stations. But it is a logistical mirage, maritime supply lines they move at the speed of a bicycle by the sheer inertia of the gigantic supertankers (VLCC) that were already sailing before the closure. The jam of more than 800 ships in the Gulf has already erased hundreds of millions of barrels from the market, and the real problem facing the world is not the lack of crude oil, but of already processed products. The first sector to suffocate has been aviation, which acts like the canary in the mine. global airlines They are canceling thousands of flights in the face of kerosene that has soared above 170 euros per barrel. At this point, the Spanish Fuel Industry Association (ACIE) corroborates EFE that the current bottleneck is in distillates such as diesel and kerosene. The Spanish lifeguard. By keeping its refineries at maximum performance, our country not only covers its demand, but also establishes itself as a logistics node capable of helping its neighbors. The contrast is abysmal: while the United Kingdom is forced to import 80% of the kerosene that its planes burn, Spain is capable of producing 80% of what it consumes. This not only protects the internal market from shortages, but also positions the peninsula to export the surplus to a thirsty Europe. In a scenario where the barrel maintains a “war premium” that inflates prices, having the final product already processed makes the Spanish plants the great emergency supplier. Those countries that decided to outsource their production of derivatives to Asia today depend on Spanish capacity so that their carriers and airlines do not remain grounded. The strategic “bunker”: the ace up CORES’ sleeve. How is it possible for Spain to hold its own if it imports practically 100% of the crude oil it consumes? The answer lies in our emergency reserves. Spain counts with an autonomy of about 105 dayswell above the 92 required by international law, managed through a mixed system between the industry and the Strategic Reserves Corporation (CORES). But the real “trick” of this bunker is not the quantity, but the quality: more than half (54.4%) of CORES’ reserves are already refined diesel fuel. Even if Saudi Arabia manages to bypass the Hormuz blockade by sending crude oil through its pipelines to the Red Sea, Europe has a serious problem if it does not have enough factories to distill it. By having the refining duties done in advance, the Spanish tanks buy the country more than three months of logistical peace to prevent the trucks from stopping. There is another safe passage: the “green shield” exception. Added to this fossil shielding is the electrical part, a front where Spain plays with a structural advantage. More than 60% of our generation mix It is already renewable, supported by massive solar and wind deployment and a solid hydraulic cushion. In the European electricity system—where the most expensive technology, usually gas, dictates the final price of all electricity—this green park acts as a retaining wall. During the central hours of the day, the massive injection of clean energy manages to sink wholesale market prices, reaching zero or even negative values. This protects us from the brutal gas increases that are suffocating bills in Germany or Italy. In practice, it allows the national industry to maintain a vital respite and a huge competitive advantage during sunny hours, cushioning an economic blow that is devastating manufacturers in the rest of the continent. A life preserver that floats, but is not immune. Spain has become a fortunate energy island, but not by chance. It is the result of not having succumbed to the temptation to dismantle its hydrocarbon infrastructure while, in parallel, investing massively in the transition towards sun and wind. However, it would be a mistake to become complacent. The life jacket floats, but the sea is rougher than ever. Fatih Birol, director of the IEA, has warned that this crisis exceeds those of 1973, 1979 and 2022 combined. And our country is not without cracks: we still lack massive batteries to store our renewable energy (which makes us vulnerable to gas every time it gets dark) and our external dependence on crude oil remains almost absolute. We have gained precious time, but the hyper-connected economy of the 21st century reminds us that when the world slows down, no one is completely unscathed. Image | Gregorio Puga Bailón Xataka | First it was the automotive industry, now Europe is going to lose another of its star industries to China

wants to extract infinite energy from the waves

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In the global race for decarbonization, humanity has managed to tame the wind and the sun, but the waves of the sea still resist it: the wave drive It is still a sleeping giant within renewable energies. Although the energy potential of waves is immense (unlike wind or solar, the contribution is continuous), the challenge lies in its effective technical use. In this scenario, Galicia has taken a step to place itself at the forefront of marine energy with Innomara project to move from theory to practice with the first floating prototype in Spain capable of connecting marine generation devices and evacuating the energy produced to land in Punta Langosteira, one of the most demanding marine environments on the planet. The project. It consists of designing, manufacturing and installing a next-generation floating prototype, a floating multi-connector with integrated sensors that will act as a central hub: it will connect multiple marine electrical generation devices and evacuate the energy produced to land through a single line. In addition, it will also integrate sensors to monitor in real time the waves, wind, currents, tides and marine biodiversity in the waters of the Outer Port of A Coruña. Why is it important. Because Spain is one of the leaders in solar and wind energy but in wave driving it is still in its infancy: as explains the XuntaInnomar is the first system of its kind in the state as there is currently no marine energy experimental zone in the country with a similar multi-connector. The extracted energy could be used for self-consumption in the port of A Coruña and the surrounding industrial estates, contributing to the energy decarbonisation of the port environment. More generally, this prototype allows companies to validate their projects in a real environment and speed up the development of their own patents in a sector with enormous growth and export potential, which means taking a step towards energy and technological sovereignty. Context. Wave energy is one of the great pending issues of the energy transition: the technology to exploit it has been in the research phase for decades without making the commercial leapAmong the main problems, the unpredictability of the waves (yes, they are constant, but they vary in height, rhythm, direction) and the harsh conditions of the marine environment when designing and maintaining it. However, recently we have seen promising initiatives in the United States and in Japan. And be careful, Europe is also taking the race seriously: United Kingdom, Portugal either Denmark They are investing in similar test zones. In this scenario, Punta Langosteira is a first-rate strategic asset: as explained by MITECO and IDAE in the official roadmap of offshore wind and sea energy in Spain, is considered the second area in the world with the highest concentration of wave energy, only surpassed by the south coast of Wales. Bottom line: if it works there, it has a good chance of doing it anywhere else in the world. In detail. The prototype will function as a smart laboratory on the high seas: with an underwater cable to bring electricity to land, sensors to monitor biodiversity and the marine environmental environment, and it will also be a kind of testing platform where different components can be tested. The project has been promoted by Inega (Energy Institute of Galicia) and its budget amounts to 5.7 million euros, of which 60% is financed with FEDER funds. There are seven companies that have submitted candidates for the prior selection, whose award is scheduled for September 2026, following a Public Procurement of Innovation model. Yes, but. The location is magnificent, the European co-financing provides solidity to the project, the model between the Administration and the private sector provides the best of both worlds and also the multi-connector hub approach is technically intelligent since it reduces redundant infrastructure, lowers costs and allows testing several wave converters in parallel. In short, they have everything in their sails, but the technical challenge is immense. Furthermore, the prototype is still a connection and measurement infrastructure, but it does not generate energy. Effective generation will depend on the devices that connect to it in the future, technology that is still far from being commercially mature. And here again the unknowns and viability appear again, since the cost per kWh of wave power is notably above wind and solar. That there is interest from the main actors is good news, but it does not imply that the leap to an effective solution is just around the corner. In Xataka | The United States is launching giant spheres into the sea with one goal: to take advantage of one of the largest sources of renewable energy In Xataka | With oil skyrocketing, Japan has resurrected an old idea to extract infinite energy from the ocean Cover | Deensel, Wikimedia and photoholgic

the plan to send infinite energy to Earth

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In the global energy transition there are countries and countries. There are some that are more advanced and others that are not so advanced. And although the ease of access to classic fossil fuels works as an anchor to resist change, the fact that you have not been dealt the best cards in terms of natural resources does not help either. Japan is one of those countries where change is almost a matter of survival: little land available, it matters about 90% of its primary energy and if we talk about resources, is testing the wavesbut the wave drive It’s a tough nut to crack. So Japan has decided to look at the energy transition from a spatial perspective, that is, capturing radiation outside of Earth, where it is more constant and powerful. We already saw it with his Ohisama satellite and now with his Moon Ring for, like says Beyonceput a ring on the moon in the shape of a solar plant. The idea. The proposal consists of installing a continuous belt of photovoltaic cells along the equator of the Moon covering a circumference of 11,000 kilometers, thus ensuring that a part of the structure is always exposed to direct sunlight, that is, 24/7 energy generation. From there, the electricity is converted into microwaves and high-density laser beams to be sent directly to receiving stations on Earth. What you propose Shimizu Corporation It is not so much a closed project with a specific date, but a long-term engineering vision to guide its line of research in space energy and this private company is not alone: ​​it has institutional support in the Japanese Aerospace Exploration Agency, which He’s been researching it for decades.. Shimizu Corporation Operating Diagram Why is it important. Because global energy demand continues to grow and terrestrial solar energy has important limitations in the form of the day and night cycle, clouds or the atmosphere itself, which reduce its performance. A plant at the equator of the moon would solve all three in one fell swoop: continuous solar energy, without the atmospheric filter or the risk of a cloudy sky. This is simply impossible on Earth. The European Space Agency has already recognized the strategic potential of space solar energy in your Solaris program. The eventual materialization of this project represents another step in the “Hydrogen society“, the vision of an economic ecosystem where hydrogen replaces fossil fuels as the main energy vector, arising from Japan’s need to overcome its extreme dependence on energy imports. In context. The idea is not new by any means: back in 1968 it already occurred to the American aerospace engineer Peter Glaser, who published an article on the subject in Science magazine. Much has happened since then and numerous governments and space agencies have also studied its feasibility: NASA did it in ’79, the British government has been exploring the idea since 2021 and China plans a demonstration in low orbit in 2028 followed by a test in geostationary orbit by 2030. Shimizu takes it a step further: he has moved it from Earth orbit to the moon, which brings certain geometric advantages, but also increases logistical complexity. In detail. Bring materials from Earth to space It’s not exactly easy or cheap.so their idea is to build the solar panels mainly with resources extracted from the lunar soil itself, using autonomous robots operated remotely. The solar ring would cover the lunar equator with a width of up to four hundred kilometers. The energy would be transmitted to Earth via a microwave antenna twenty kilometers in diameter, guided by a ground beacon for precise pointing. The concept of wireless power transmission is not science fiction: California Institute of Technology performed in 2023 a demonstration in orbit. Yes, but. We are facing an engineering project on a scale unprecedented in the history of humanity and the cost of launching cargo into space is the least of the problems (it is being reduced thanks to operators like SpaceX): so would building an infrastructure of these characteristics in situ. And even if it could be done, cosmic radiation and micrometeorite bombardment on the lunar surface would constitute a serious risk to the integrity of the panels, which implies a challenge in terms of useful life and maintenance. NASA itself points out these barriers in evaluating the space solar energy concept. In Xataka | Japan has lost a five-ton satellite in the most unusual way imaginable: “it fell” during launch In Xataka | Japan has just made a monumental bet on perovskite solar panels: they are its best chance against China Cover | Shimizu Corporation

The entire global electricity grid, in an impressive interactive map that shows the evolution of the energy transition

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There are few infrastructures as complex and essential to living in the world as we know it as the electrical grid, which in practice for most mortals is reduced to touching a switch or connecting a plug to the socket and it works. Behind the world’s electrical infrastructure there is a huge conglomerate of equipment, careful planning and uses that are changing (among other things, due to the now so famous data centers). It is not the only thing that is being transformed: the energy transition is making it possible for those resources that once supplied the electrical grid to give way to renewable energies. But not all countries in the world have the same density of electrical networks or the same sources, because in fact there are real black holes in this very complete world map of the electrical network. Is called OpenGridWorks and is an interactive map of the entire world’s electrical infrastructure, from a small solar plant to the great lines that cross continents. And we already told you that it attracts attention not only for the beauty of the chromatic compositions, but also for practical purposes: from planning an engineering project to analyzing energy policy. Opengridworks This map is actually a web platform for geospatial visualization of electrical infrastructure. All its data comes from OpenStreetMap, the world’s largest open, collaborative geographic database, maintained by volunteers and experts on an ongoing basis. This guarantees global coverage, constant updating and completely free access. But for network and infrastructure data it uses information from Global Energy Monitor or the United States Energy Information Administration, among others. Its purpose is to show, in a clear and interactive way, where electricity is generated, how it travels through the grid and where consumption is concentrated. It is worth stopping at the layers and all the information it shows because as we warned you before it is very complete, so if you leave all the options activated you will find yourself in a mess. If you move on the map and get closer, you will be able to see information such as: What technology provides the energy in the form of a colored bubble: blue for hydroelectric, red for thermal, yellow for solar, green for wind and purple for nuclear. The size of each bubble represents the installed capacity in MW Transmission lines are drawn thicker the higher their voltage (from 100 kV to 765 kV) and substations appear as nodes where these lines converge. Data centers also appear in the shape of a white diamond as they are points of intensive consumption. On the other hand, easement strips (ROW) appear as shaded areas around lines and facilities. Opengridworks But you will also be able to see additional information when you hover the pointer over any of the points. An example: when touching the Montes de Cierzo wind farm in Tudela, we will see that it is in operation and the energy it provides. What the global electrical map reveals about the energy transition Playing with the zoom and scrolling you quickly discover that there are areas of saturation and others that are a desert of infrastructure. From an engineering point of view, the map allows you to search for the closest interconnection point for a new project or detect nodes whose failure would leave regions without supply. Beyond engineering, it is an energy policy tool: it highlights the electrification gaps in developing countries, shows the real progress of renewables compared to fossil fuels, and allows the resilience of different national networks to be compared. AND abysmal differences are observed. Opengridworks The densest networks They are concentrated in the United States, central Europe and China, while sub-Saharan Africa and central Asia show very poor coverage that reveals an electrical blackout. In South America, the areas with the most infrastructure are on the Atlantic coast, although there are also some timid points on the Pacific coast. However, inside we barely find more than a fade to black. The colors of energy sources also change on the map, still dominated by thermal generation, although in Western Europe and China the advance of solar and wind power is a reality already perfectly visible. This map also reveals curiosities such as that nuclear plants always appear next to rivers or coasts due to cooling needs and hydroelectric plants are concentrated in the large river systems of the world. The data centers are also not placed at random, but are clustered near large transmission nodes to ensure supply. In Xataka | How much electricity each country on the map produces with renewable energy, displayed on a graph In Xataka | The amount of nuclear energy generated by each country, detailed in this interactive map Cover | OpenGrid Works

China has just launched its first undersea data center with total energy autonomy. The idea makes more sense than it seems

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In the AI ​​race, having a robust data center infrastructure to power it is essential, but first you need energy to power it all. The United States may lead the chip industry (at least, the strategic ones), but China follows closely at an unstoppable pace and furthermore, has the energy. And he is already beginning to connect the dots, showing off his technical power and ingenuity: already It has the largest data center in the worldis also a pioneer to submerge them under the sea. Now it has taken a twist with the first underwater data center that ‘drinks’ directly from the wind that just opened. This project represents the perfect union of two of China’s strategic priorities: digital sovereignty and carbon neutrality. By placing computing infrastructure on the seabed and powering it directly with clean energy on siteChina is solving one of the great current technological problems: the insatiable energy consumption of AI and Big Data. The project. About 10 kilometers off the coast of Shanghai, at the bottom of the East China Sea, a steel cylinder receives electricity directly from wind turbines and is cooled with sea water. It is the Lingang Subsea Data Centeran ambitious project promoted by Shanghai Hailan Cloud Technology (HiCloud) and built by CCCC Third Harbor Engineering. It consists of a series of data storage and processing modules encapsulated in watertight and submerged containers, which are connected via two 35 kV submarine cables to offshore wind turbines operating off the coast of Shanghai. With a planned capacity of 24 MW in two phases, the first is already operational: it has a capacity of 2.3 megawatts and includes a ground control center, a vertical data module installed under the sea and two main 35 kilovolt submarine cables. Why it is important. In addition to the fact that it does not occupy land, in cities as crowded as Shanghai it represents a valuable saving in land and that it can be installed close to where it is needed (if there is a coast, obviously), because it solves at the same time three structural problems of the sector: Refrigeration. Seawater acts as a constant and free heat sink, eliminating the need for industrial air conditioning systems that consume 40 to 50% of electricity. The metric that measures the energy efficiency of a data center by comparing the total energy consumed versus that used purely by the servers is the PUE, which for a standard data center on land is an average slightly higher than 1.5. The project promises to lower it to a figure not greater than 1.15. Without consumption of fresh water. Traditional data centers evaporate millions of liters of water to cool their servers, but this uses thermal exchange with the ocean, so it does not consume water resources. Take advantage of the surplus from wind power. One of the handicaps of wind energy is that generation depends on the wind and not on demand, so if you do not have a battery, the energy that is not consumed is wasted. Thanks to this direct connection, the data center absorbs wind production in real time, functioning as a constant consumer that reduces the waste of renewable energy due to lack of destination, In figures. The magnitude of the project, with some official numbers: The budget is 1.6 billion yuan, about 200 million euros. Total planned operational capacity of 24 MW (2.3 MW in the first phase). The design PUE is less than 1.15. More than 95 percent of electricity comes from renewable sources. Context. The name of HiCloud is not new because in fact it is an old acquaintance: it is the person behind the underwater prototype in front of Hainan which began to install in 2021. However, the international reference is the Natick project from Microsoft (2013–2024), which demonstrated the potential of underwater centers: only 8 of the 864 servers failed, a much lower mortality rate than that of any conventional data center in the same period and also got a very low PUE of only 1.07. Despite this, Microsoft shelved the matter: viability in terms of costs and maintenance is another story. However, the Lingang project has top-level institutional support: is present on the List of Green and Low Carbon Technology Demonstration Projects of the NDRC, China’s top economic planning body. How they have done it. Servers are placed in pressurized steel cabins filled with inert gases to prevent corrosion and fire with a design that maximizes interior space and minimizes the impact of waves. Heat is dissipated by pumping seawater through radiators located behind the racks. The most complicated operation was raising the cabin in the open sea: the separation between the legs of the support structure and the steel piles on the seabed was only 0.18 meters and the maximum allowable deviation was 10 centimeters, so GPS and the Sanhang Fengfan crane vessel were helped. Roadmap. The project follows a staggered progression that leaves certain unknowns. First was the prototype in Hainan (2021-2024). In 2025 the project began in Shanghai, whose phase 1 concluded in October of that year and it has just been launched a few weeks ago. The key phase that will take capacity up to 24 MW has no official public date. Of course, the consortium of companies made up of HiCloud, Shenergy Group, China Telecom Shanghai, INESA and CCCC Third Harbor Engineering signed a cooperation agreement in October 2025 to scale to 500 MW linked to offshore wind, although where and when is unknown. Yes, but. That 2.3 MW of phase 1 is practically a demonstration, not commercial infrastructure as a large conventional data center operates between 50 and 500 MW. And in addition, it has to resolve the issues that Microsoft’s Project Natick left unresolved, such as underwater maintenance: HiCloud has not published protocols or long-term repair costs. And scalability to 500 MW is at the moment more of an intention than a project In Xataka | Where you see a mountain, China sees a … Read more

take advantage of one of the largest sources of renewable energy

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The energy wave drive It has a great advantage over other more popular renewable energy sources, such as the sun or wind: it never rests. Waves are an almost continuous and enormously energetic resource. And yet, it is the ugly duckling of green energies because its unpredictable and far from constant nature turns energy extraction into a titanic task in terms of efficiency. An American startup, Panthalassa, has been testing for a while In Pacific waters, a prototype that rethinks from the ground up how to relate to the ocean: instead of resisting it, it follows the flow. The invention. He Ocean-2 It is a device that at first glance looks like a giant buoy. In fact, in tests in Puget Sound, Washington, several people reported an unidentified floating object. The spherical part of the end (the node) has almost 10 meters in diameter and is mounted on a tubular hull approximately 60 meters long (which is submerged under the sea). But the analogy with the buoy is accurate in that it is a simple structure that sways with the waves. When it is horizontal it moves and when it is vertical (when it looks like a buoy) it starts working. Why it is important. Because the oceans They cover 71% of the Earth and its energy has an advantage that solar and wind power lack: consistency. The ocean generates energy regardless of whether it is day or night, even if it is calm or the sky is cloudy, which makes this energy source the ideal complement to stabilize networks. The endemic problem of this technology is its low efficiency. If this prototype can be scaled, it could become an alternative and complement to clean and independent energy for coastal areas. Context. In the midst of the race for AI and data centers, the great bottleneck of the United States is the energyso much so that they are dusting off old energy solutions as fossil power plants and resurrecting its nuclear industry. Of course, and although his role in the US, Israel and Iran war is different from Europe and so is its access to oil, the reality is that the price of a barrel being uncontrolled does not benefit them either. In that scenario, it is expanding your investment in renewables. Wave energy has been promising and disappointing for decades. Salt, corrosion, biological growth on structures, and the brutal cost of offshore maintenance have literally and figuratively sunk dozens of projects around the world. The result: almost everything has remained in the pilot phase. Nor has efficiency ever been anything to write home about. And while wave power has stagnated, the price of solar and wind has fallen so rapidly that it has left other clean energies without a competitive advantage. However, wave energy faces another opportunity: Ocean Energy Europe figure The portfolio of planned deployments until 2030 is at 165 MW and the United States has invested $591 million in ocean energy in the last five years. How much energy it produces and uses. In the test he managed to generate up to 50 kW in decent wave conditions, enough to power a small coastal town. However, its priority application is not the domestic electrical network, but something more specific such as clean fuels and computing: producing green hydrogen that is transported to shore in autonomous ships, and powering data centers in the ocean. How they do it. The design of the Ocean-2 has a more philosophical than technical point: it is not so much about resisting the ocean but about accompanying it. As the waves oscillate, water is propelled through an internal pipe to the spherical surface and then descends through turbines to generate power. It has hardly any moving partsbeyond the turbine, integrated into the steel structure The buoy does not have nets or elements that can trap marine fauna, it operates silently and with slow movements: Panthalassa’s environmental manager, Dr. Liam Chen, explained for local TV KOMO that its soft, low-impact design allows you to “live in harmony with the ocean.” Testing in Puget Sound showed no visible alterations to the surrounding marine ecosystem. According to the co-founderGarth Sheldon-Coulson, these machines can be made for around $1,500 per kilowatt. What comes next. As account its co-founder, have been working for about ten years: the first four or five years was only R&D, in 2021 they launched their predecessor the Ocean-1, in 2024 the Ocean-2 was released and the Ocean-3 is already in development and It is making steady progress in its financing. Yes, but. So far, everything is testing and prototypes because the project is in the experimental phase, that is, there is not a single commercial kilowatt generated, nor a connected network, nor long-term durability data. And the sea is not exactly an easy environment: knowing how it will withstand storms and the passage of time, what maintenance will be like or simply something as basic as the transfer of energy from the device to the network is essential. Without forgetting the cost, especially given the collapse in the costs of solar or wind energy, both technologies that are already mature, consolidated and very cheap. In Xataka | With oil skyrocketing, Japan has resurrected an old idea to extract infinite energy from the ocean In Xataka | Something is happening in the oceans for which we have no convincing explanation: the waves are disappearing Cover | Panthalassa and Matt Paul Catalano

If the energy and technological future passes through “Electrostates”, there is one that has been living there for years: China

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As the world panics over the lack of fossil fuels, the numbers in the Chinese renewable sector they are vertigo. Shares in battery giant CATL have soared 29.5% on the Hong Kong stock exchange since the conflict began. For its part, electric vehicle leader BYD has seen its sales abroad skyrocket by 65% ​​year-on-year in the month of March. This wave of buying is not new, but it has accelerated dramatically: last year, Chinese exports of solar panels to Africa increased by 48%, sales of electric vehicles rose by 27%, and sales of wind turbines grew by almost 50%. Survival and a career already over. The global turn to renewables at this critical moment is not driven solely by climate promises, but by a need for “energy security”. Fuel shortages in Asia have led vulnerable countries to take drastic measures: Indonesia’s president has announced the construction of 100 gigawatts of solar power over the next two years, while the Philippines is offering state loans of up to $8,300 to install home solar panels. As an analysis by my colleague Javier Lacort points outthe West has been promising alternatives for years, but China “is not winning the battery race; it has already won it,” controlling more than 80% of global manufacturing. Companies like CATL and BYD have already announced or built 68 factories outside China, investing more money abroad than in their own country. The rise of the “Electrostates.” The global landscape is being redefined. We are witnessing a contest between the traditional “Petrostates”, led by the United States, and the new “Electrostates”, anchored by China, which supplies more than 70% of all the green hardware in the world. Excluded from the United States and Europe by protectionist measures, the Chinese solar industry has found its salvation in the Global South. Last year, Chinese manufacturers shipped 18.8 gigawatts of solar panels to Africa. Diplomatically and economically, the war will cement China’s superpower status. The disconnection of Middle East crude oil could even erode the dominance of the “petrodollar” and catalyze the beginnings of the “petroyuan”as countries like Iran negotiate the passage of ships in exchange for payments in Chinese currency. Side B. Despite this overwhelming dominance, Beijing’s path has significant obstacles. In Africa, although cheap technology is welcome, alarm voices are growing about the creation of a new “dependency syndrome.” Some experts lament that while African countries see China as a savior, Beijing considers them a “dump” to get rid of its industrial overcapacity. In the West, mistrust is even greater for reasons of national security. The UK recently vetoed Chinese manufacturer Ming Yang’s plans to build a wind turbine factory in Scotland, alleging risks of espionage or sabotage in critical infrastructure. At the same time, Donald Trump’s US administration has decided from the beginning to withdraw fiscal support for green energy and prioritize fossil fuels so as not to depend on supply chains controlled by foreign adversaries. China is not invulnerable either.. Despite its renewable leadership, the country still imports 78% of oil that it consumes, and the Persian Gulf supplies almost half of those imports. The rise in the barrel is causing havoc due to cost inflation in its vital steel, aluminum and petrochemical factories, reducing its competitive margins. A geopolitical choice. Precisely because this dependence on fossil fuels punishes everyone equally, the green transition has become a race of pure economic survival to shield national economies. The crisis triggered by the war in Iran shows that resilience is today the main driver of global change. As Fatih Birol of the International Energy Agency points outclean energies will accelerate not only because of emissions, but because they are a “national energy source.” However, adopting this technology means choosing which side of the scale you want to be on. The energy transition is no longer a simple choice between fossil or renewable fuels. Today, the degree to which a country decides (or not) to rely on China will define its ability to decarbonize, making an environmental debate the most defining geopolitical decision of the next decade. Image | Unsplash Xataka | The country that controls the electric batteries of electric cars will control the future. And we already have a winner

resurrect the energy tax

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The war escalation produced by the Third Gulf War has caused a crisis in the price of energy that inevitably evokes the ghosts of what was experienced after the Russian invasion of Ukraine four years ago. Faced with this scenario, five heavyweights of the European Union have decided to step forward to prevent history from hitting them again. In short. On April 3, the economy ministers of Spain, Germany, Italy, Austria and Portugal sent a formal letter to the European Commissioner for Climate Action, Wopke Hoekstra. The request, advanced on social networks by the Spanish vice president Carlos Body, is direct: they demand exploring “an instrument of temporary solidarity so that energy companies contribute with the extraordinary profits obtained during the war.” A double reading. The movement of this block of five countries is understood from two positions: economic and political. On the one hand, they seek to protect the citizen’s pocket and public coffers. to alleviate the cost of the crisis and curb inflation falls on business margins and not exclusively on “consumers (…) without overloading public budgets,” as the original letter states. On the other hand, from a political focus, the letter seek to send a message of unity. The measure would demonstrate to citizens that Europe is “united” and capable of “acting.” Furthermore, he sends a serious warning to the market: “those who benefit from the consequences of war must do their bit to alleviate the burden that falls on the population.” The mirror of 2022. To speed up procedures and avoid legal labyrinths, the five ministers propose using a formula that has already proven effective. The proposal is based in resurrecting Regulation (EU) 2022/1854the same emergency tool that was activated in the Ukrainian crisis. The signatories maintain that this precedent provides the tax with the “solid legal basis” that is necessary to act immediately before the current market volatility. However, as might be expected, it will not be an exact copy. There is a technical nuance to take into account: Spain and its allies have asked the Commission to study “if and how” the profits that these oil multinationals obtain abroad can also be taxed. This would allow for more targeted and effective taxation on surpluses generated globally. Despite the intentions, the fine print still needs to be outlined. The text sent to Brussels is still a declaration of intentions that “does not offer details on what percentage should be applied to extraordinary profits or on which companies said tax would fall.” While Europe decides, Spain assumes the bill. In parallel to this European debate, the Spanish Executive has already deployed a shock package that reduces VAT on fuel from 21% to 10% and reduces the special tax on hydrocarbons. The results are tangible: the price of gasoline has dropped to 1,557 euros per liter and the March CPI has been cushioned to 3.3%. However, the bill for this “relief” at the pumps costs the State coffers 5,000 million euros. Precisely, the budgetary pressure that the new European tax seeks to alleviate. The ball, on Brus’ roofandthe. The letter is already on the table of the European Commission. The main demand of those responsible for the economy of Spain, Germany, Italy, Austria and Portugal is that this measure be addressed “as quickly as possible.” Now the diplomatic and technical countdown begins. The barrel of crude oil maintains its upward trend due to instability in global supply routes, which is why technical services in Brussels are expected to evaluate the legal basis of this possible instrument in the coming weeks. Europe faces the challenge of demonstrating whether its fiscal reflexes remain as sharp as in 2022. Image | Unsplash Xataka | The tyranny of 24/7: how the insatiable hunger of algorithms suffocated the power grids of the 20th century

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