"They are building full-scale, break-even-or-better that is to be ready in 2018. [...] If all goes well this year then Helion Energy machine that proves commercial energy gain would be a 50 Megawatt system built in 2021."
> David indicated a breakeven fusion machine would need about $35 million in funding. Seattle Business reports that Helion has raised the money and will complete this targeting breakeven machine this year.
> Nucor is making a direct investment of $35 million in Helion to accelerate fusion deployment in the United States.
Their most recent scientific paper they published 3 months ago only says that scientific breakeven (Qsci > 1) is possible. Which has been claimed many times before pesky engineering challenges and unmodeled behavior starts to interfere. The paper actually mostly just rehashes their marketing so its impossible to judge how realistic their claims are. Regardless, they don't seem like they are close to any kind of actual prototype let alone one that can demonstrate scientific breakeven or the order of magnitude harder engineering breakeven.
Their claims seem very hard to believe to put it mildy.
In their defence, a lot of their past promises were explicitly conditional on receiving a level of funding which they did not receive until much more recently.
They still aren't making a 500 MW plant in 2030 though.
He just overestimate capabilities of computer inside Tesla.
I'm now reading about Mercedes level 3 automated driving system.
For me looks like, Daimler selling under-priced more powerful hardware, because for Daimler it is spare project (they could earn money on others), and with few times more RAM/FLOPs, they achieve better result.
Plus, Daimler cheat rules, their conditions for usage automated system are significantly more limited than have Tesla.
Unfortunately, Tesla cannot sell cars under-priced, and Tesla by definition whole world system.
I'm not trying to advocate Musk, I'm Ukrainian and Musk said wrong things about Ukrainian war.
But I must admit, just half year ago, I don't know what could do recent AI on my own computer.
If you read the whole article it is something like, "yes we produce a huge amount of CO2, but we're investing in fusion energy to power our steel plants, so get off our backs for 7 years." Good luck to them though, steel plants are a great application for high power, continuous sources of energy that don't go away when the sun sets or the wind stops blowing.
This is a PR stunt just like all the Boom Aerospace PR stunts years ago. Go read the comments on those old Boom posts that defended accusations that it was empty marketing.
Can someone familiar with Helion's plans explain how they are planning to make the deuterium fuse with the Helium-3 without making the deuterium fuse with itself to make tritium (and then D-T fusion etc.)?
Also, where are they getting the helium-3 from in the first place?
They will have two types of reactors. First, large centralized reactors for DD fusion to make He3. These will be more expensive and challenging because of the neutron bombardment. The other for D-He3 fusion which will be for smaller sites and produces less neutron damage.
They will make the He-3 using D-D fusion reactors (which is not aneutronic) and waiting for collected tritium to decay into He-3 (12 years). In each shot, they have to remove the he3 and T to prevent them from reacting.
In the D-he3 reactors, they cannot fully prevent the side reactions of DD and DT. But they can minimize them by controlling the mixture of he3 and D in each shot and constantly extracting the T byproduct of D-he3. Basically, they will have high ratio of he3 to D ions so that all the D ions are likely to be used in D-he3 reactions. Removing and collecting the T in each shot removes the opportunity for D-T. It will probably work to an extent, but there will still be side reactions. The overall neutronicity will likely be in the 2-5 range in the D-He3 reactors.
Isn't the whole point of their design that they aren't producing neutrons? What's the point of picking an aneutronic reaction if they are going to be having D-D and D-T fusion going on anyway?
Excellent production quality, but I would have appreciated a bit more skepticism on the part of the host of Real Engineering.
In particular, adding tritium to a fusing deuterium plasma does not just make all of the fusion a-neutronic. It just makes some percentage of the fusion events a-neutronic. So you're "just" adding a fuel additive that "just" changes the emissions somewhat
Plus, apparently D-T fusion tends to release gamma rays -- I'm sure that will also be tricky to either convert into useful energy or shield against.
I'm all in favor of trying, and I wish them luck, but it all smacked of a last minute publicity event to try to reassure investors that they were just one last upgrade away from producing power.
I would suggest the (longer, dryer) fusion master class series by Dr. Matthew Moynihan
This doesn't appear to be just a PR stunt to me given that Nucor is also directly investing $35 million in Helion as part of the agreement. If you're going to post the usual fusion naysayer comment I think you should at least address this part of the announcement as well.
They wouldn't be the first company to spend $35M on marketing. They also don't specify the payment schedule, if they are supposed to give some of it in 5 years then there is a decent chance Helion won't exist once it is time to collect.
Putting $35 million on the table to accomplish what has eluded us for so long and is supposed to sustain modernity for the next 1000 years is small enough to convince me that this is more promotion than promise. That's about about 1% of the cost of this steel mill, (https://www.spokesman.com/stories/2021/sep/17/us-steel-to-bu...) which is called a mini-mill in the link. Boxers have earned much more for a single fight; $35 million might buy a CEO for a year, but it is less than half the cost of a Hollywood film, of which we get a few each week, or of a 10-bedroom home on 5th Avenue.
Given the history of fusion announcements, I suspect the only thing people are willing to listen to is "we successfully delivered power from a fusion reactor fueled by $fuel to a paying customer in $place, and the only byproducts were $waste_product."
Helion has never demonstrated that their technology actually works on any scale. Even if they magically made breakthroughs and were able to hypothetically build a prototype plant it would be almost impossible to solve the operational challenges to build a commercial scale plant in seven years. It would be far more challenging than building a nuclear plant for example. That ignores all the complexity of their D-He3 aneutronic fusion cycle; they probably cannot operate a commercial scale power plant (that would presumably use D-He3) without having first constructed D-D reactors.
I cannot find it via google (so perhaps I'm remembering it wrong), but DoE or NSF created in the seventies - as part of some larger report - what I thought was a fairly well known chart guesstimating the time needed to develop working fusion energy generation, based on how much money was spent on the endeavor. The idea being that to do it relatively quickly we'd have to spend a pretty extravagant amount of money on research and development, and as the amount of money spent decreased the timeline extended further into the future.
The unintended joke was/is that the U.S. has never spent anywhere close to the amount money the DoE estimated was needed to develop fusion power, so we haven't even tested the accuracy of the chart.
Here is the chart. I wouldn't call $3B/year in 2012 dollars an extravagant amount of spending for a program, which is the level the authors call "moderate."
Readit News
"They are building full-scale, break-even-or-better that is to be ready in 2018. [...] If all goes well this year then Helion Energy machine that proves commercial energy gain would be a 50 Megawatt system built in 2021."
https://www.nextbigfuture.com/2018/10/helion-energy-got-fund...
When people stop believing you, just double down. Not 50MW in 2021, but 500MW in 2030. In 2027 they will announce a 5GW plant in 2035.
> Nucor is making a direct investment of $35 million in Helion to accelerate fusion deployment in the United States.
Is fusion always $35 million away?
Their claims seem very hard to believe to put it mildy.
They still aren't making a 500 MW plant in 2030 though.
^0 https://twitter.com/elonmusk/status/686279251293777920
[1] https://futurism.com/video-elon-musk-promising-self-driving-...
I'm now reading about Mercedes level 3 automated driving system.
For me looks like, Daimler selling under-priced more powerful hardware, because for Daimler it is spare project (they could earn money on others), and with few times more RAM/FLOPs, they achieve better result.
Plus, Daimler cheat rules, their conditions for usage automated system are significantly more limited than have Tesla.
Unfortunately, Tesla cannot sell cars under-priced, and Tesla by definition whole world system.
I'm not trying to advocate Musk, I'm Ukrainian and Musk said wrong things about Ukrainian war.
But I must admit, just half year ago, I don't know what could do recent AI on my own computer.
That was in 2012
edit: 2013, https://www.extremetech.com/cars/166826-tesla-motors-will-pu...
Also, where are they getting the helium-3 from in the first place?
They will make the He-3 using D-D fusion reactors (which is not aneutronic) and waiting for collected tritium to decay into He-3 (12 years). In each shot, they have to remove the he3 and T to prevent them from reacting.
In the D-he3 reactors, they cannot fully prevent the side reactions of DD and DT. But they can minimize them by controlling the mixture of he3 and D in each shot and constantly extracting the T byproduct of D-he3. Basically, they will have high ratio of he3 to D ions so that all the D ions are likely to be used in D-he3 reactions. Removing and collecting the T in each shot removes the opportunity for D-T. It will probably work to an extent, but there will still be side reactions. The overall neutronicity will likely be in the 2-5 range in the D-He3 reactors.
In particular, adding tritium to a fusing deuterium plasma does not just make all of the fusion a-neutronic. It just makes some percentage of the fusion events a-neutronic. So you're "just" adding a fuel additive that "just" changes the emissions somewhat
Plus, apparently D-T fusion tends to release gamma rays -- I'm sure that will also be tricky to either convert into useful energy or shield against.
I'm all in favor of trying, and I wish them luck, but it all smacked of a last minute publicity event to try to reassure investors that they were just one last upgrade away from producing power.
I would suggest the (longer, dryer) fusion master class series by Dr. Matthew Moynihan
https://youtu.be/BGu0cxrWWCA?si=lozD5-5MT1d-WEp9
Deleted Comment
Putting $35 million on the table to accomplish what has eluded us for so long and is supposed to sustain modernity for the next 1000 years is small enough to convince me that this is more promotion than promise. That's about about 1% of the cost of this steel mill, (https://www.spokesman.com/stories/2021/sep/17/us-steel-to-bu...) which is called a mini-mill in the link. Boxers have earned much more for a single fight; $35 million might buy a CEO for a year, but it is less than half the cost of a Hollywood film, of which we get a few each week, or of a 10-bedroom home on 5th Avenue.
Given this is the era of zero-consequence big lies, Nucor and Helion just shifting the horizon a bit to greenwash their operations.
I'll see it when I believe it.
The unintended joke was/is that the U.S. has never spent anywhere close to the amount money the DoE estimated was needed to develop fusion power, so we haven't even tested the accuracy of the chart.
https://commons.m.wikimedia.org/wiki/File:U.S._historical_fu...