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He’s a fraud. He’s a cia stooge.

In this context I think musk is referring to coal fired reciprocating engines, which are very inefficient. And have been obsolete since the invention of steam turbines in the late 1800's. Still he's a tool of of his own design.

He knows a thing or two. Gas fired turbines like the GE LM6000 generate so much power that they can power a couple steam turbines just from the waste heat.

He was referring to steam powered transportation obviously.

All infrastructure is impermanent, some more than others. Holes drilled down far enough will start to collapse and shift if they are made in the wrong location, especially if there are underground rivers at the spot. Also, like drilling a well, the depth needed might vary. And too many people drawing from the same depth will then require even deeper digs. It's a complicated story, but it's the reason that the cost of a geothermal installation can vary so much. Iceland is a good example of a country that does use geothermal, but they basically live on a volcano.

Not that simple...the earth is infinitely dynamique even granite is under pressure and will eventually blow out, I've seen it underground working as a Hard Rock Miner...also, land formations move all the time which is why the reason for avalanches of earth and stone. As a point of interest, back in 1995 I lost à water well due to dynamic motion, had to drill another one, also, my cousin who lives near South Moresby on the Queen Charlotte Islands had a natural hotsprings bath tub that was there for thousands or millions of years, since the formation of the Rocky Mountains, about 5 years ago there was a mild earthquake along the Pacific Rim from Alaska down the entire west coast to California and her natural hot tub went dry because the fissure source of the water augmented to another route and to this day nobody has found where that source ended up, geologists in the area say the water is more than likely flowing into the ocean somewhere....even concrete hydro dams move with earthly dynamics...not that anyone here really gives a fuck about "dynamic earth" but it's a fact of nature. On another note...something many people don't know, aren't privy to, and I was told this by a geologist who manages à number of oil wells near Hooker Oklahoma, that it's not uncommon to lose well casings to dynamic activity...everything is a crap shoot when boring into the earth, the deeper you go the greater the risk of torsional forces.

Don't even have to go that deep if you use a heat pump. 20 ft down and it's a constant 55f, warmer than outside in winter and cooler in summer. Blame the fossil fuel energy lobby for suppressing this. That and there is a lot of up front expense with either drilling deep holes or excavating (and then back-filling) enough to make it work. Unless you live someplace like Iceland, they have many geo-therm power plants. They also have magma close to the surface too.

I can enlighten you on this somewhat. Drilling is a fairly expensive process as the underlying substrate varies with depth throughout all regions. This can get more expensive depending on just what you drill through and at what depth. Further the depth you would need to drill to reach your required temperature also varies with regional differences due to how thick or thin the crust is and whether or not the location you drill in is in a volcanic area like Iceland or Japan. Most of the continental US and Europe have seismically active areas but little in the way of volcanically active areas (eg Yellowstone and Pomepy).

Overall, we would potentially need to drill nearly the entire thickness of the crust in low volcanic areas to hit the required temps to hit that temperature. That is roughly 20 miles of depth for these low volcanic regions.

Based on what I have seen just to drill for soil properties, the cost for about 50 foot depth is 2 to 3 thousand dollars to mobilize a crew. So potentially the cost alone to determine if a site is viable to build at could run as much as 6 million dollars, and that assumes a linear cost increase with depth without adjusting for any other factors like rigs, engineering costs for the drilling, etc.

After all that, you still have to design the geothermal system, which has the major problem of figuring out how to get the heat back up from the depths without losing heat to the surrounding Earth.

I can't get into heat load calcs for that, but you would need very significant insulative methods to do that for very very deep locations. Overall the cost to build versus the output is what prevents us from building geothermal everywhere. It's really only places with high volcanic activity where it becomes viable.

For more realistic cost comparison, finding out more about Iceland's geothermal would probably provide a better picture about the build cost and depth.

Because that is Hell and we don't want to open a passage for more demons.---this is a joke you monkeys.

Probably as FUBAR mentioned lobby suppression, but there many serious concerns like too structural integrity of the holes, moving earth plaques, efficency, workers, maintence, etc.

We do do that.
The limiting factor is the depth that needs to be drilled. Deep holes are expensive to drill and maintain. So, most practical sites are limited to shallow fields.

Air capacitors, would be great. Charge really fast. There's not enough copper though for electric cars.

You are a stupid fucking idiot.
https://www.ge.com/steam-power/products/steam-turbines
Don’t comment on shit you know nothing about. Fuck off.