One needs to be careful not to conflate geothermal heat pump resources with geothermal electricity generation resources, there's a reason Iceland (sitting on a volcano) is the only country to depend on the latter. Yes, there are a few states with Geothermal powergen (mostly California) but 16TWh for the entire contiguous US is not a lot. You need, as the link notes, high steam temperatures to make that viable, and availability of that is limited, it's also complex (and expensive) to implement and requires deep drilling (unless you are on a volcano).Like I mentioned in another thread... more geothermal electricity generation, MUCH more. Tremendous bang for the buck, predictable/reliable 24/7 generation, and CLEAN. No greenhouse gas generation, no fuel resource use, and no nuclear material disposal issues.
https://www.eia.gov/energyexplained/geothermal/use-of-geothermal-energy.php
There is enough geothermal energy available that 50% of the country could get it's electricity from this kind of power generation. This would be a MUCH lower cost alternative to constructing new nuclear power plants, in addition to being a more politically palatable option. Personally, I am in favor of constructing more nuclear power plants, but the overwhelming construction cost and lead-time makes this option a non-starter IMO.
1. NukeIf you had your choice what would you like more of in order of preference?
For me it would be:
Nuclear
NG
Coal
Yup, and the footprint of hydro can be considerable. The area for the James Bay Project in Quebec is the size of the state of Florida.This would be an excellent option if... there were enough hydro available to power the electric generation (which has been a rapidly declining resource over the last 20 years).
Not if you are a utility. Large plants are the cheapest to operate run wide-open. In Ontario, because of the fixed-cost nature of our generating assets (thanks GEA!) it's actually cheaper (per kWh) to use more power than to leverage conservation.The cheapest power if the watt you don't need to generate.
Efficiency and conservation is a good option. Heat pumps seem to be a good residential heating option.... moving heat rather than generating it.
Yup, but you can do electric arc furnaces and hydrogen, cutting NG out of the picture. Nukes produce absolutely obscene amounts of electricity and very rapidly pay back their sunk emissions. Lifecycle emissions of nuclear plants are the lowest of any technology because of that.That gives rise to what supports what - takes lots of steel bar and pipe to do these projects … that takes natural gas to heat billets and the heat treat phase is typically HV electric ovens etc … Concrete is very fuel (and lube) intensive … Transport etc
Hard pass on nuclear energy contamination. https://en.wikipedia.org/wiki/Chernobyl_disaster , And that nuke plant that blew up due to the earthquake and flood in japan, really instills confidence in it's safety. At least when dam water stops flowing, it doesn't contaminate anything. It would be nice to leave your grand-kids a planet,that's not contaminated for the next 10,000 years.,,Ill go Nuclear any day for reliable clean energy and also for those greenie's out there.
"The water elevation at the Hoover Dam stood at a meager 1,041 feet on July 18th, 2022, according to the Bureau of Reclamation, which manages Lake Mead. That’s a scary number because, once it drops below 1,000 feet, it will affect the dam’s ability to operate its hydropower turbines. The dam typically provides power to 1.3 million people in Nevada, Arizona, and California."
https://www.theverge.com/2022/7/22/...ow-nasa-satellite-images-hoover-dam-reservoir
https://nymag.com/intelligencer/2021/07/the-hoover-dam-is-running-low-on-water.html
Now just think if they were investing in nuclear the last couple decades, it would be no sweat.
The problem is that people have a really hard time with energy density. Spinning a turbine with the current sounds amazing until you realize how much equipment you have to install to capture enough to be useful. It's like all these failed tidal generating stations, it simply doesn't work at scale because it isn't energy dense enough. Nuclear is 20,000x more energy dense than fossil fuels, and fossil fuels are the most dense form we'd ever come across before discovering fission. Nothing comes close.Most dams were designed or renovated to generate power. In the last decade or so, along with wind turbine technology, underwater paddles were being researched to harness energy in the oceans. Underwater currents have been discovered to be a continues source. Meaning they are not interrupted or affected . So spinning a turbine would be a perfect uninterrupted source. No need at all for fossil fuels. Or having to figure out what to do with spent nuke material.,,
1. Chernobyl was built by the Soviet Union and lacked any form of secondary containment. You can't compare that to any modern design operating today. Hell, even the first CANDU we built at Douglas Point had secondary containment.Hard pass on nuclear energy contamination. https://en.wikipedia.org/wiki/Chernobyl_disaster , And that nuke plant that blew up due to the earthquake and flood in japan, really instills confidence in it's safety. At least when dam water stops flowing, it doesn't contaminate anything. It would be nice to leave your grand-kids a planet,that's not contaminated for the next 10,000 years.,,
If you want to keep adding building blocks - but oil & gas can build nuclear today.Yup, but you can do electric arc furnaces and hydrogen, cutting NG out of the picture. Nukes produce absolutely obscene amounts of electricity and very rapidly pay back their sunk emissions. Lifecycle emissions of nuclear plants are the lowest of any technology because of that.
One thing that wasn't mentioned in the chart was, that that after the dam failure in China, the people were able to return to that area and start life over again. Nobody will be allowed back to the Chernobyl area, pretty much forever. Properly built dams don't fail. And as long as man doesn't over use the resource, it will produce. But if you cut corners to save a buck during construction, anything can fail. And don't forget, even after we die, other people will need to live on the planet.,,1. Chernobyl was built by the Soviet Union and lacked any form of secondary containment. You can't compare that to any modern design operating today. Hell, even the first CANDU we built at Douglas Point had secondary containment.
2. Fukushima killed one person (and that's highly debatable, it's arguably zero) and other than creating a huge financial headache for Tepco, was a testament to how, even when things go wrong, the impact isn't much. This was after Tepco intentionally avoided relocating the emergency generators to behind the plant and upgrading the seawall, both of which they had been advised to do, but were able to avoid due to "grandfathering" regulations.
3. The most deadly power-generation related accident in history happened with hydro-electric (and I'm a fan of hydro-electric). The Banqaio dam failure in China produced the 3rd largest flood in history and killed up to 240,000 people. Ironically, this dam was constructed with the help of the Soviets (like Chernobyl).
4. Nuclear has the 2nd lowest rate of fatalities of any power generation source based on TWh produced (and the safest depending on whose fatality figures you use for Chernobyl).
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This is true, though here in Canada, nuclear lifecycle emissions are insanely low because most of the construction was powered by hydro-electric. Quebec steel and aluminum production is powered by hydro, uranium mining is done with hydro...etc. We already have a couple electric arc furnaces (powered by nuclear and hydro) here in Ontario, so FF usage is pretty low in the big scheme of things (primarily transport).If you want to keep adding building blocks - but oil & gas can build nuclear today.
People are in the Chernobyl area right now. Many people never left. The power plant continued to operate until 2000 when it was forced to retire. The fact is that up to 240,000 people died in the dam failure, which dwarfs the estimated high-end fatalities for Chernobyl. You can tour Chernobyl, I'd love to go, Pripyat would be an incredible experience, as it's very much an analog to what would happen if society were to collapse. Nature has reclaimed the whole exclusion zone.One thing that wasn't mentioned in the chart was, that that after the dam failure in China, the people were able to return to that area and start life over again. Nobody will be allowed back to the Chernobyl area, pretty much forever.
And a properly constructed nuke doesn't make huge swaths of land uninhabitable either. Fukushima residents have been allowed back (and many areas were allowed to return ages ago) and Japan is restarting their nuclear power plants after ensuring that this sort of stupidity can't happen again. The point is that a dam failure killed far more people than the worst nuclear disaster in history, and both were Soviet screw-ups.Properly built dams don't fail. And as long as man doesn't over use the resource, it will produce. But if you cut corners to save a buck during construction, anything can fail. And don't forget, even after we die, other people will need to live on the planet.,,
The state of the art pipe plant I toured (like aluminum extrusion) does not deal in molten metal - they pierce hot billets as they rotate hot roll forming the tubes in the same path. They chose natural gas for that phase - and electric ovens for a computerized heat treat process … (in the second building - 27 acres under roof) …This is true, though here in Canada, nuclear lifecycle emissions are insanely low because most of the construction was powered by hydro-electric. Quebec steel and aluminum production is powered by hydro, uranium mining is done with hydro...etc. We already have a couple electric arc furnaces (powered by nuclear and hydro) here in Ontario, so FF usage is pretty low in the big scheme of things (primarily transport).
But, even if you use FF for that whole process, lifecycle emissions are still insanely low because of the volume of power nukes produce, which was the point I was making. The ROI is extremely good.
I heat with gas BTW, because it's insanely efficient (95%) and less expensive than electricity. Burning it for electricity (30-40% efficiency) seems silly if you can use the gas to produce a nuke, which can handle that part far more efficiently.
Mass Hysteria for events outside of our country make good news media, short of reality.Hard pass on nuclear energy contamination. https://en.wikipedia.org/wiki/Chernobyl_disaster , And that nuke plant that blew up due to the earthquake and flood in japan, really instills confidence in it's safety. At least when dam water stops flowing, it doesn't contaminate anything. It would be nice to leave your grand-kids a planet,that's not contaminated for the next 10,000 years.,,
NuclearIf you had your choice what would you like more of in order of preference?
For me it would be:
Nuclear
NG
Coal