In Australia we have this energy freely available in a town called Portland which is in Victoria but the authorities closed it down, it supplied thermal energy to the hospital and heated the local swimming pool. Greed at the top end stopped us using it. Power companies must do favours for the rats that are in power.

as someone who has spent most of the last 18 years on oil rigs, as a geologist, and later an engineer, I can say that the process to drill deep geothermal wells is not really any different to conventional oil and gas drilling. We have the technology to drill very deeply already, we don't need this new plasma method that will use an incredible amount of electricity. Just because some technology exists, doesnt mean it's going to be affordable, or applicable. Geodynamics, a company in Australia already built a proof of concept for enhanced geothermal, or hot dry rock geothermal (look for Geodynamics Habanero project). They drilled multiple wells to only 4-5km deep, and circulated water between wells, generating steam, and electricity. One major economic hurdle was affordable corrosion control, not the technology to drill the wells. Conceptually, it's awesome, no need to burn fossil fuels, etc, but the reality is that there is no point building an amazing system if you cannot maintain the equipment and sell the end product at an affordable price.

If I remember the Kola Superdeep Borehole history correctly, one of the main reasons they stopped it (beyond lacking money) was because at the depth they were at, the rock was almost like drilling through soft plastic. The drill didn't so much bite as "stir" the rock, and extraction of the drilled rock was made very difficult. That, and the well sides weren't very stable, collapsing around the drill head and string. They also kept having "mishaps" where sections of the drill string would break and they would have to abandon that current hole and start again above where the break occurred, probably due to the issues with the temperatures and the plasticity problems with the rocks at that depth.

If I may, all oil and gas wells on Earth can actually be converted into Geothermal power plants for electricity and district heating/cooling. There are many abandoned oil/gas wells (including coal mines) that can be used for such a purpose... and oil rigs in the North sea are especially usable because the geothermal gradient there is far higher (aka, hotter temperatures at shallower depths of bore holes which automatically provide high enough temps for electricitiy and heating production [combined]). Additionally, A LOT of the said oil/gas wells already reach down 6 to 12 km... which are deep enough for electricity production. The Geothermal facility which was newly constructed in Cornwall UK was said it will produce about 3 MW of electricity and 12 MW of heating/cooling - and this is with a well of about 4.5km depth - which is not bad, but its also shallower than many oil/gas wells). It was also said that converting oil/gas wells to geothermal would cost HALF as much vs what it would cost to decomission them - and heck, why not? The infrastructure is already there. Plus, all of the equipment, people and their skills are DIRECTLY transferrable to Geothermal sector. While it is also accurate that for new geothermal power facilities the drilling costs are what account for 30-50% of the costs, what most people fail to realize is that utility scale geothermal power plants tend to pay for themselves in up to 10 years time (typically around 7 years maximum), after that, they are virtually free to run. They also have no running fuel costs, have reliability and efficiency ratios of 90-100%, and levelized cost of Geothermal has been holding steady for over a decade now at $70 per MWh (whereas most running costs of Geothermal are between $14-$36 per MWh). Essentially, Geothermal has all advantages of Nuclear, but none of its drawbacks (such as high running operational costs and production of nuclear waste - even new SMR's are ridiculously inefficient and will be producing 2-30 times more volume of nuclear waste than existing nuclear power plants - and their levelized costs are projected to rise exponentially in the coming decade - plus, standard operational costs of Nuclear are $156 per MWh - over DOUBLE of Geothermal). Also, when properly maintained, Geothermal power plants can last over 100 years (as is evidenced by the Geothermal facility in Italy/Larderrelo)... and Geothermal brines tend to contain vast quantities of Lithium and other mineral resources. It was said that the handful (about five or eight) of Geothermal plants in USA alone can provide the entire nation with many times more Lithium that it would ever know what to do with (and if we factor in other mineral resources in the brines, the payoff of the geothermal facility can be much faster than what I said above - similar ratios are for the Geothermal facility in Cornwall). So, technically speaking, there is no need to make new wells because we have a vast amount of unused oil/gas infrastructure (even used ones) which can already be converted to Geothermal for both electricity and heating/cooling purposes. But, I agree that Quaise' efforts at drilling 20km into the Earth would provide for much higher temperatures... but in that case, I would imagine that 20 km depth would provide for much higher temperatures than 400 degrees Celsius. At any rate, the biggest problem plaguing Geothermal are not higher costs of drilling or our ability to access Geothermal resources for sustainable electricity and heating/cooling... its BIGGEST problem is LACK OF FUNDING. Compared to any other energy source on Earth, Geothermal is the LEAST funded energy source on the planet. And when we factor in how much money is given in subsidies to fossil fuels... you can tell that governments and corporation priorities do NOT lie where they should be. Already, back in 2006, MIT released a study saying that we already had the technology at the time to access enough geothermal power to sustain Human civilisation for 200 years worth of... and that with improved technologies we can access enough Geothermal to sustain us for 2000 years. The oil and gas industry has been digging deep bore holes ranging from 6-12 km depth for 100 years now... its not an issue of accessing Geothermal... the issue is lack of funding and willingness to shift our attention to Geothermal.

In Italy, Larderello, Tuscany, there are some 30 centrals for a total of 800 MW of power, more than Island. But the vapors have also some polluting components that must keep in mind.

Ultra deep geothermal drilling is more complex that your simplistic proposal. Lots of good comments in the replies explaining why it’s so difficult to drill and then maintain a HTHP well. Another area of deep concern is the trace elements and corrosive gases that at elevated temperatures create severe embrittlement issues. North Sea Central Graben HPHT gas field has not been fully developed because of this. As always cost and risk must be the overriding metric that justifies introducing ambitious new technology. Another area of this proposal that is way off the mark is borehole stability and pressure control. A vertical 12km well to ULTRA HPHT formations is probably too expensive, too risky and quite simply beyond the capacity of 99% of current drilling rigs and the people who run them.

in finland heating houses with ground heat energy is very common, usualy make 200-300m deep holes, take pipes down there with compressed alcohol, and the heated alcohol comes up to heat exhanger, it will take some electricity to compress and run the pumps, but its much cheaper then just to heat up houses with just electricity.

A problem you forget with geothermal energy is that you subtract heat from the rock and the rock is not a good thermal conductor. That means that a certain pipe has only a limited energy capacity until the rocks are cooled down enough so that the water will not be supercritical.

Conventional wells are drilled using a fluid (drilling fluid, or 'mud') that has its density controlled to it keep the wellbore from collapsing. this also provides the medium to carry the rock out of the well, and to cool and lubricate the drill bit, as well as providing some hydraulic force to assist the bit in breaking rock. Drilling with plasma at any depth will be challenging because they will have to somehow support the borehole and stop it collapsing. Building up a vitreous layer on the wellbore will not provide much in the way of wellbore integrity, and it wont use all of the rock that's drilled to do it either, so there will need to be a mechanism to remove the rock. On top of that, electronics suitable for harsh environment, such as very hot wells do exist, but are extremely expensive, and do not have a long life. As a drilling engineer, I'm all for new technology to drill faster, and cheaper, while still staying safe, be it for oil and gas, or geothermal, but I am not sure this particular technology will do the job for the same price that we can do it now - and right now, we do have the technology to drill into rocks of the required temperature and pressure to maintain water at supercritical conditions.

I think you should take a look at the problems with the holes being under pressures and temps that make the rock there drilled in semi liquid causing them to flow and move collapsing the hole. There are other problems with this then just the drilling process as documented by the Kola Superdeep Borehole research teams.

There is a Canadian company digging a few kilometers down and successfully doing geothermal. They got hundreds of millions in funding.

I just started digging . I can feel it getting warmer already had to take my coat off.

There are a lot of points missing from this video. Drilling deep isn’t limited to “how hot the rock is”. It’s the fact that tensile limitations of steel drill pipe etc cannot withstand the high weights associated with long lengths of pipe. That, coupled with the fact the rock that’s been drilled needs to be circulated back out of the hole which is done with drilling fluid. I could go into a whole discussion about the limitations of deep drilling but it would take ages

Actually, the Krell did this quite successfully on Antares IV. Dr. Morbius had Robbie the Robot utilizing just a tiny fraction of the power derived from the core of Antares IV, to manufacture Krell metal. I always wondered just how far Commander Adam’s got with Morbius’s daughter Altaria back in 1956.

A far more cost effective method, that requires zero drilling involves the ocean. So long as the moon exists, there will be tidal movements, which could be a far more cost effective and totally clean way to generate electricity.

I've said fro decades this makes much more sense than the fusion pipe dream. Problems involved would be FAR easier to solve than building a fusion reactor.

as a German Biologist and Pythagorean - we need no Drilling. We have plenty of Volcanoes , Iceland is volcanic - where we can use Heat to transform Water into Hydrogen. Since 30 Years I promote this...

It's called hot rock thermal. We tried in Australia. 4 km hole in hot rock lasted about two weeks. So a couple million years of heated heated rock cooled off in about two weeks.

“Hot Dry Rock” is the name for the type of Geothermal most of these systems would use. Another good keyword for anyone else geeking out on all this is “Enhanced Geothermal Systems” (hydraulic fracturing to make standard rock into porous rock)

really great vid - appreciate the sources in the caption

Geothermal steam has a problem with mineral deposition. Geothermal groundwater is heavily mineralized. The hotter the water, the more mineral load it can carry.

I assume the word "infinite" is being casually misused in this video? Seems unscientific to suppose that this hole could ever provide infinite energy.

This is very interesting to me. I hope we figure out how to economically use geothermal. Great Video.

Thanks for your time

Amazing that various governments around the world spend many trillions of dollars in an effort to reach Mars or other celestial bodies that are millions of miles away. Meanwhile....Earth's human civilization is in desperate need for alternative, abundant, clean energy, that will not only improve life dramatically, but could save the death of our planet and the solution may be only 20 kilometer from our reach. Someone please explain to me why the development of geothermal energy is taking a back seat to space exploration.

Great ideas. And, like a lot of things, it will probably become more practical with time and effort. I would not call this "renewable" energy, though. Maybe an [essentially] infinite energy source, unless, of course, the Earth's core renews itself. Thanks for posting this.

There are actually quite a bit of hot springs out west and one or two spots in the eastern us. Even after the well cools too much to produce power it can still be used for geothermal heating and cooling.

Fantastic! Well researched & presented. Thank you for sharing.

It's not "infinite", nor is it "unlimited" - it's relatively "infinite" compared to the expected lifetime of the human species. Also, "The Entrance to Hell" is a totally different hole in the ground...where do you do your research? O.o

even if not for electric generation, geothermal has heating applications it could be used for to displace natural gas. and oil use you'd think in advances in heat pumps and cryogenics, the'd be able to make concentrators to up the heat to a more usable value. plus it's clean and can go in locations nuclear can't be, cutting infrastructure costs to connect it. best drilling tech is owned by oil. might explain it's slow take up.

Straight to the point with good information. Thank you 👍

Lots of good comments about the corrosion issues, reminds me of nuclear fission proposals using non water coolants such as lead or molten salt. But in those cases it might actually be much easier to solve the corrosion issues as you don't have most of the periodic table coming up a pipe onto your heat ex changer surface! My personal favorite tech for the upcoming advanced modular reactors (AMRs) would be a heavy nitrogen gas (N15) cooled and yttrium hydride moderated thermal spectrum direct cycle reactor. No heat ex changer, no corrosion issues (or a normal level of corrosion issues), and the reactor vessel isn't absolutely enormous as it is with a graphite or heavy water moderated reactor.

Good stuff here. My only concern, as yet unknown I suppose, is will these deep geothermal plants cause quakes?

I had this idea 12 years ago Except when plasma hit certain things like water molecules it will separate the H²0 and will cause explosions and will collapse the drilling process second if steam is highly pressurized it doesn't flow freely

Thank god for break throughs. They are so much better than developments.

There is a geothermal generation at Wairakei in NZ that has been grid connected since the mid 50's. Any volcanic shallow crust area has this potential, think calderas. Important minerals like lithium can be extracted and the hot water re-injected. The steam usually is wet and this liquid is corrosive and aggressive so lots of maintenance.

The next big breakthrough will be to harness the planet's iron core for limitless energy, but we all know what happened on Krypton now don't we :)

At the geothermal power plants the wells cool off over time and have to be drilled at another location. It's probably too expensive to drill new wells to the very deep depths these people are proposing. Also there is a risk that something bad could happen, like starting a new volcano.

I hope they do it like how they dug the pylons for the Brooklyn bridge. A tunnel boring machine aimed straight down tho. Case the bore with concrete as you dig. Pour water in the hole while you dig and use chain link buckets to lift the waste out. You could have a crew on the machine as it digs to do maintenance. Elevator to move supplies and crew in and out

Very cool & well produced!!

I thought that an additional issue with the deep boreholes was the hole collapsing in on itself when it was that deep?

One small problem , radio activity. I had a oil well drilled on my property strangely they left some iron pipe behind . Asking the scrap man it's value he said they left in behind because it became radioactive.

@Ziroth If steam turbines in powerplants are substituted by cryogenic turbines using the same fluids as on freezers, solar power can be used to generate electricity even at night at latitudes up to 40 degrees North or South.

Congrats 🎉on 100k subscribers!!!

Great topic. This sounds like something with a lot of potential. Thanks for the well presented info. 👍

The problem is that you cannot extract energy from anything without side effects. Energy may be large on a global scale, but local extraction of heat must have an impact on local geology. If you are taking heat from local rocks then that local rock is cooling, and what impact will that have in terms of what is happening to the material above the above the rock. Could you cause local earthquakes as the rock cools and gets denser allowing the rocks above to collapse down?

The manhole covered hole in russia is already deep enough for geothermal energy, the rock around the bore-hole was said to have the consistency of plasticine more than solid rock, and rock at those temperatures are more than sufficient for people to put a thermo-coupling into the middle of it and run a couple of heat exchangers to keep from fracking the mantle and causing an earthquake like conventional "geothermal" systems attempt to do, making the water use the entire rock structure without ensuring there are no contaminants and deep faults that can cause an earthquake or a sinkhole with erosion over time. The key to designing new geothermal systems is to make the borehead the actual heat extractor and use it to create steam power for a steam powered turbine at the very simplest.

Having worked in the Oil and Gas Industry and a bit with waveguides, I'm wondering what the losses on kilometers-long megawatt scale waveguide might be? Also, Microwaves powerful to blast through hard rock at meters per hour could do the same to a wave guide as well, and even if waveguide losses were minimal, over miles could add up and over months of operation could degrade the wave guide surface through: Conductor Losses: The conducting walls of the waveguide can lead to power losses due to the finite conductivity of the material. This results in the conversion of electromagnetic energy into heat as it propagates through the waveguide. Dielectric Losses: Dielectric materials such as insulators or fillers in the waveguide can absorb electromagnetic energy and convert it into heat. This absorption is characterized by the dielectric loss tangent, which quantifies the lossiness of the material. Radiation Losses: Imperfections in the waveguide, such as bends, joints, or gaps, can cause some of the energy to be radiated away from the waveguide, leading to power losses. Surface Roughness Losses: Irregularities or roughness on the inner surface of the waveguide can cause scattering of the electromagnetic waves, leading to additional power losses. Mode Conversion Losses: In multimode waveguides, energy can be lost during mode conversion processes, where energy is transferred from one mode to another. This can occur at irregularities or transitions within the waveguide. Aperture Losses: In waveguides with apertures, such as horn antennas, there can be losses associated with the transition of energy from the waveguide to free space. Absorption by Gases: If the waveguide contains gases, such as air or other contaminants, these gases can absorb electromagnetic energy and cause power losses. Skin Effect: At high frequencies, electromagnetic waves tend to propagate near the surface of the conductor. This skin effect can lead to increased power losses in high-frequency waveguides.

Has anyone done a calculation to estimate how quickly, and to what extent heat extraction from the Earth's interior degrades the magnetosphere?

As much as I appreciate the effort made in this video and as much as I like geothermal energy, there is just so much wrong in this video. Redoing some of the voiceovers and cleaning up the misunderstandings may get the video to standard. First, and foremost, there seems to be a fundamental misunderstanding about the structure of the Earth and the composition of its different layers. I get the feeling that everything below the crust(?) or below 15 km (?) depth is referred to as the Earth's core? Secondly, the core is largely iron and nickel, which means there is essentially no significant radiogenic heat produced in the core. The radiogenic heat is rather produced in the mantle and crust. Thirdly, the super deep drills at the Kola peninsular and in Germany never were motivated by exploring geothermal heat. These were scientific projects. Also, what is the Earth's impermeable cap rock? If it is impermeable, how do they drill there? Lastly, the normal geothermal gradient is estimated at something like 25-30 C per kilometre depth. This delineates some of the problems with deep drills, as you drill down you experience very high temperatures and pressures. The temperatures will compromise your drill, whereas the pressure will constantly try to close your drill hole. At 4:20 minutes in you say: "Attempts have been made to dig very deep into the Earth's core." No. The outer core is about 2900 km down and more than 3000 C hot. At the Kola Superdeep Borehole, they drilled just over 12 km ... you may find that there is still some meters left from 12 to 2900 km depth. At Kola, it was also somewhat hotter than expected (180 C) at 12 km depth, which was the problem that ended the drilling. Kola was chosen because back in the days the geothermal gradient below the Baltic shield was not well understood and they expected only 100C in 12 km depth. Then again, 180 C is not that much, you would think-water is supercritical at 373 C or so. Heat exchangers are needed to get water supercritical. So this business wants to drill 20 km (~500 C). OK. Not the core, though... still far from the mantle even, which is at about 660 km, even the lithosphere goes done to ~120 km. Do they have a plan for how they keep the hole open at extreme pressures and how to deal with the heat problem? The middle crust and the ductile-brittle transition is about at 15(-20) km depth, that is where rocks start to behave plastic over geological times...that is how hot it is down there. Just saying...

Great visuals! Are they from Quaise?

and it still just keeps on going that way endlessly. we never stop and actually give things time to meld enough for good results

Sounds easy, sounds like a great idea, but geothermal plants are nothing new. Financially speaking, most only produce a very small amount of energy. One major cost hurdle is corrosion. There are some pretty caustic chemicals trapped in the Earth's crust. I have many geothermal plants around me (closest is less than 1 mile). I've seen expensive and exotic pipe material get eaten away by corrosion in a matter of a couple months. I congratulate on a nice presentation, but you have to take much more into consideration. There are theories and there is real life senarios.

I don't like the environmental side effects: earthquakes, and cooling magma sinks back toward the mantle. And the water used in the hole. Using existing hot water is no problem at all. I just don't like for profit outfits drilling and pumping under such circumstances. I feel more sanguine about nuclear power that is in a controlled, regulated reactor.

Imagine the amount of energy from falling water if you could piss dead center down the deepest hole

O I love this channel! Man you are smart. This plasma will happen it’s a game changer in cutting anything!

My house has a geothermal generator. It wasnt that expensive. Also, nuclear and geothermal are the most effective energy production methods, the government should really stop funding wind and solar farms and go for nuclear wich for a fraction of the resources and cost will produce hundreds of times the energy

I have to object to the usage of “infinite” in the title. The amount of energy stored inside the Earth might seem like a lot on human scales, but it’s still nowhere on the scale of infinite. And even as a practical matter, if technology and the population continues to grow, we could conceivably burn through all that energy in a pretty short period of time, geologically speaking. The video says it could last for millions of years, but when you consider the Earth has already been around for 4 billion years, that doesn’t seem like all that much to me.

There is a geothermal plant on the Naval Air Station at China Lake in South California.

Nice content man! new sub :)

1:11 _Sieg: pressure from both earth compressing (and even from air pressure above it) generates friction underground.. this is the only Real cause of magma, which bellows out as 'volcanoes'.._ *there is no such thing as a "magma core" or maybe even a "crust".. that would be impossible, the upper crust layers of the surface would have sunk immediately into that lava..*

I have a patented process to drill through hard rock and abrasive jetting that can drill many times faster than standard drill bits.

A closed loop hydroelectric power station can be built so it is self charging so it can provide electricity indefinitely for less than the cost of any other system of electricity production.

I did this in my backyard works great 👍

What becomes of the materials the plasmadrills come in contact with? Could this technic also be used to dig tunnels more efficiently?

Bersheck n Acme Fixer and Ziroth.. what are your thoughts con the "closed-loop"?

There is a geothermal plant generator at China Lake CA on the Navy Base.

"Oh no we rapidly cooled the earths core and the earth magnetic field is being disrupted" future scientists probably.

Great video very informative

There is a HUGE temperature differential between a black tar road and the earth a few feet down and to the side. Time to invest in a techno that is right in front of our faces.

The unlimited heat from ground sounds like "Unlimited fish from the ocean" at ancient times.

When Germany and France went looking for geothermal they pierced the water table and a layer of anhydrous gypsum, which swelled and now buildings that survived hundreds of years are breaking apart

The now age-old problem with getting free heat energy from geothermal sources is simply to do with the poor heat conduction of earth-rock. Any heat energy removed from a location under earth's surface will cool that location, and it takes time for that heat to be restored from beneath the location. No matter how large the area chosen beneath the crust, cooling will happen, and restoration of that heat occurs at a fixed rate. The rate of extraction of that heat can be calculated, and it is usually too low to provide all that is needed above ground. Wairakae Power Station is a geothermal plant in central North island New Zealand. It has been dogged with this cooling phenomenon since it was built in the mid-twentieth century. The surrounding rock under the earth's crust at that locality has been cooling from the start, thus limiting the rate of extraction of heat energy to much lower than when the station was first built in the late 1950s.

It is worth noting that there is not a net production of geothermal energy from the decay of radioisotopes in the current day. The heat flux from the Earths surface is greater tham the thermal energy produced by decay of all long lived radionuclides (e.g. U-238, U-235, 147Sm). Most of the Earths thermal energy was generated in the first 10 million years after the Solar System formed by the fast decay of short lived radionuclides (mainly Al-26, Mn-26, and some others such as 92Nb, 97Tc). This was a ubiquitous process in the early Solar System and provided the heat that produced some of the oldest differentiated meteorites (iron meteorites). Some of the heat was also provided by the accretion process amd the latent heat of crystallisatiom during silicate differentation, again both very early processes that occured before 60 million years after the Solar System formed. The large radius of the Earth has insulated this heat for 4.567 billion years. But the Earths geothermal energy has been slowly lost to space for most of that time and is still being lost today.

In Kenya we produce 1,000 MW from geothermal with a potential to produce upto 10,000 MW...

They didn't run out of money digging the Kola superdeep borehole. It was almost twice as hot as it was supposed to be at that depth so the drill bits melted. They couldn't dig any deeper

Maybe this technology could help tuneling as well. For subways, water distribution channels and so on.

No. The Kola bore project didn't run out of money. The purpose was to measure the thickness of the shell of the Earth and assumed that we live on a planet whose center is hollow. They accurately determined that the thickness of this shell close to the Arctic Circle is around 22KM. They stopped after determining the thickness since that was the real reason. Do yourself a favor and read the "Project Orion" KGB PDF document that was recently released.

You guys appear to let us know about a lot of pipe dreams! Best of luck to all of us!

At a certain point the drill a length of pipe then pull out to add casing and before they can get casing in the length they drilled fills back in.

You do not need to drill for thousands of meters; one-hundred meters are more than enough to run your heating on geothermal energy. And the tech does already exist! Drilling very deep would be interesting for a huge powerplant but not necessarily economically more efficient.

You don´t need plasma drilling. Only a drill that uses water pressurised up to 2000 atm that will destroy almost any material a driller will find. You only need recirculate the dirty water, clean out the rests of the crushed rocks and repeat the process.

Making ever deepening holes would also create a path of least resistance for naturally hot and pressurised substances to find the surface. That may be an issue.

just to be clear here, he's essentially talking about harvesting volcanic power. Which, might just be the best supervillain sell I've ever seen.

Also uses the generating gear from the Coal/Gas plants!

thank you for sharing

good job thanks

in drilling that far down is there a chance of creating a small unstopple volcano.

I worked on drilling rigs in Northern Ca drilling into volcano. One of them blew in and killed the whole crew. I decided it was too dangerous and quit.

In Switzerland ( Basel and St Gallen ) and near Freiburg Germany geothermic explorations were stopped because of earthquakes and anhydrit lifting with housebreakes in the whole city Baden 💥🥶

illegaly good vids, thank you! subscribed. also, appreciate the use of non-degenerate metric system

The huge irregularly slaps of Rock that MOVE

How do you protect a 20 km drill hole from closure due to earth shifting or hole collapse?

there is so much sun shining and wind blowing... the most simple things that dont harm earth, seem to be neglected on porpous... I wish for my windows to give me all KW that I need all day or night or weather issue... no digging, no fusion, no radioactivity, no drama... simple and clean🙏🙏why is that not possible yet, I wonder

What about the movement of tectonic plates wouldn't that snap the pipes eventually cus we're gliding or something

Die Jungs und Mädels vom KIT sind auch immer ganz vorne dabei, wenn's um solche Angelegenheiten geht. Der größe Stolz Karlsruhes!

INSANELY deep holes.

It's not hard to imagine drilling a deep hole, but it is hard to imagine creating a reservoir underground artificially. You also need a way to force cold water into the reservoir, without the backpressure of the steam stopping this process. Basically, geothermal is only really practical on an active geothermal vent and reservoir. Making one artificially is basically "not possible".

Fascinating!

Men throughout history drilled many holes that contained energy.