Far from being boring, revisiting topics to see if they are progressing is is a really valuable activity. Thanks.

@tristanridley1601

2 ай бұрын

Boring for him, probably. Lol

@peterduff9281

2 ай бұрын

Wonder how many topics and forecasts that aren't progressing get a revisit?

I really appreciate that you return to old topics to see how they have evolved/devolved. With the slew of innovative ideas in renewables and energy use, its nice to see some follow-up to separate the Chaff from the Wheat.

@abhishekpurnapatre5038

2 ай бұрын

chaff does serve a purpose beyond just being discarded. It can be used as animal feed or as mulch, and its fibrous nature can indeed aid in digestion

@1964mcqueen

2 ай бұрын

@@abhishekpurnapatre5038 And in this context it is used as a figure of speech. Now that you have your dictionary out, try looking up pedantic.

@lady_draguliana784

2 ай бұрын

he also nails the frequency pretty well, waiting either for "a good while" to pass, or a substantial update (even if, sometimes, he's just dousing a 'viral breakthrough fire')

@peterduff9281

2 ай бұрын

The bottom line is that none of these "breakthroughs" or "gamechangers" ever seem to get anywhere before he moves seamlessly onto the next "breakthrough" or "gamechanger". Also does he revisit the alarmist forecasts he comes out with or give any proof of link to CO2, or mention China's vastly increasing CO2 emissions? (which make our emission " reductions", only achieved by importing more of our fossil fuel supply, not only completely pointless but also economically hugely self-damaging). All I can think is that this bloke is an AI bot for the globalists' agenda of the West's destruction.

@1964mcqueen

2 ай бұрын

@@peterduff9281 What are you talking about? This video is specifically about him revisiting technology that he covered previously, to see if it really was a gamechanger, or what if any progress has been made. And my comment is specifically about the FACT that he does revisit what he covers. Every video he does includes his source material that anyone with a keyboard can verify. Or, we can all just be lazy and throw around baseless accusations and conspiracy theories on topics we know absolutely nothing about.

A 30% markup for the green stuff sounds like a bargain compared to what CCS for blast furnaces would cost.

@incognitotorpedo42

2 ай бұрын

Particularly if that CCS was efficient enough to be even close to the CO2 reduction seen with the advanced green methods.

@allangibson8494

2 ай бұрын

The 30% markup would be a bargain for low background steel. With no atmospheric air used in production there can be no radiological contamination.

@vonnikon

2 ай бұрын

​@@allangibson8494excellent point. That is a small but commercially excellent initial market for green steel.

@dzcav3

2 ай бұрын

Poverty kills. It's a leading cause of death in the world. 30% greater cost means more human death. Or, we could accept that more CO2 in the atmosphere means greater crop yields to feed the world's poor. It also results in a MILDER climate: higher LOW temperatures (mostly at night, in winter, at higher latitudes; NOT higher HIGH temperatures. (That's why the average temperature are increasing.) There is no existential crisis. Climate models fail to model known historical climate and have failed to predict future climate. Use of failed hypotheses is anti-science. I vote for human welfare, not climate hype.

@devonbikefilms

2 ай бұрын

@@dzcav3 I wondered when someone would pedal the “CO2 is great” myth.

Oooh, that really does look like some decent progress. It was totally non-viable just 5 years ago except for small batches of custom boutique production.

The cool thing with Molten Oxide Electrolysis (MOE), is that you can basically use it for all metal oxides. Very versatile. NASA plans to use molten salt electrolysis (FFC Cambridge process) on other planet. It's lower temperature but needs salt and all the issues that come with it.

@54365100

2 ай бұрын

And dont forget the abhorently low energy and time/volume eficiency of it all!

@rogerphelps9939

2 ай бұрын

They manage it with aluminium.@@54365100

Here's an idea for a video Dave. Right at the end of this one you dropped in the fact that the steel industry is yet another that enjoys subsidies to safeguard production. Until they are removed we're not really comparing like with like when we discuss costs of new technologies. What about looking at the global picture to show which industries are being "artificially" supported with subsides since they act as significant disincentives to the development of new "green" technologies.

@peterduff9281

2 ай бұрын

The only steel producers that will survive are those that use humongous amounts of coal. Like China.

@falconerd343

10 күн бұрын

Exactly, I'd love to see an analysis of subsidies given to green or black companies and industries. I think we would all be rather shocked at what our tax dollars actually go to.

With cycling back to review advances in previously covered topics, we'll be looking forward to your update on green technology advances in the cement for concrete industry. This is another of the big impact industries that needs to see improvement.

@peterduff9281

2 ай бұрын

I can guarantee there will be no substitute for fossil fuels when it comes to high energy-consuming industry like concrete manufacture. Ain't in the laws of physics to consistently supply that amount of energy from fickle and diffuse low-energy production sources like wind or solar. Even from nuclear using electricity for large-scale energy intense manufacturing is not satisfactory, and at present rate of replacement we could be without any operating nuclear power stations in 10 years time.

Here in Wales, we are also ditching our blast furnaces... but at a social cost. Port Talbot steel works, one of the largest employers in Wales, is set to lose up to 3000 jobs as the plant installs electric arc furnaces. Demonstrations have been held against the owner, Tata Steel, and their decarbonisation plans. It's so crucial to take people along in the journey to sustainable tech by having more joined up policies of retraining and new employment opportunities. Another big topic!

@frasercrone3838

2 ай бұрын

it is a sad consequence of technological change that jobs are often impacted negatively. It has always been this way going back hundreds of years. The new technology may eventually create spin off jobs in other sectors but at the present time those jobs tend to be higher skilled types that many put out of work in older technology industries will not be able to be trained for. Older industries have more manual processes so require more people. The new technology usually incorporates a high degree of automation and a reduction in manual processes. So it is the older and less skilled worker that usually carries the can and governments are going to have to change their tune about pointing the finger at some unemployed people and labeling them as bludgers.

@patrickjordan2233

2 ай бұрын

​@@frasercrone3838🎯🎯 Definitely a concern, especially given a broad resistance in a general populace towards change because of your noted "pain points" + personal economic uncertainty...

@davidedwards4691

2 ай бұрын

I believe this was not driven by decarbonisation plans but rather as we are now outside the EU we suffer tariffs on high carbon steel exports to the EU. So Brexit drove this as Tata did tell everyone in past. It is such a pity the media is distorting reality and blaming a green agenda. When post Brexit this was the only viable option.

@peterduff9281

2 ай бұрын

Electric arc furnaces can only recycle old steel, and make second-grade material at best. Meanwhile China will be using unlimited amounts of coal to produce their steel, much cheaper as a result. Well done Net Zero! Pointless and self-destructive.

@peterduff9281

2 ай бұрын

@@davidedwards4691 Easy to blame Brexit but why cannot our government provide the requisite coal cheaply enough (we've got plenty in the ground) - because it's not allowed to, unlike China for instance. This is why China's steel much cheaper than ours - because they use massive amounts of cheap coal to manufacture it. Duhhh..... So less Brexit, more Net Zero is the cause.

You should come to the Everything Electric show in Vancouver Canada. The first one last summer was epic! Ricky from Two Bit DaVinci was there, Nicki and Kate from Transport Evolved were there, and Sandy Monroe made an appearance… along with all the usual suspects for the Fully Charged show. I’m on council for my municipality and brought home some valuable information. We may be replacing some of our equipment with fully electric this year, all thanks to exhibitors at the show.

@mikeh6206

2 ай бұрын

Hello Buddywhatshisname....Where are the other fellers?

@jimthain8777

2 ай бұрын

I also went last year. It was great and I really enjoyed everything I saw/learned.

Don't forget about Austria's voestalpine AG which is also is in the process of installing electric arc furnices (1 bn EUR investment). When it will be finished in 2027 it is said to be Austria's single biggest climate reduction effort, as it will decrease national CO2 emissions by 5%.

@fparent

2 ай бұрын

In Québec, Canada they've been using electric arc furnaces as far as I can remember, possibly for more than 40 years. I believe both steel and aluminum are smelted that way.

@EdSurridge

2 ай бұрын

Any link's mate?

@rojavabashur6455

2 ай бұрын

Electric Arch Furnaces is not green steel, its just recycling. It means Austria is removing primary steel making and removing all its blast furnaces, basically abandoning steel making.

@fparent

2 ай бұрын

​@@rojavabashur6455What do you mean by your statement? Are you saying that electric arc furnaces aren't green?

@SurmaSampo

2 ай бұрын

​@@fparentHe means you can't use electric arc with iron ore. It is essentially just a way to melt down steel scrap to recycle into new steel.

H2 Green Steel is already building its 5 million tonnes steel plant in Sweden and have raised 6 billion euros for it. Sweden extract 90% iof EUs iron ore and will at 2035 produce 30-40 million tonnes of green steel every year. If Australia did the same thing with its iron ore they would cut the worlds entire emissions with 3%.

@lamsmiley1944

2 ай бұрын

One of Australia’s biggest mining magnates is planning on building giant green hydrogen plants. I’m not sure if he actually plans to create green steel, but it would make sense.

@dancooperish

2 ай бұрын

Most of the iron ore mined in Australia isn't actually made into steel here. It's shipped out as ore. BlueScope steel is working with BHP and Rio Tinto (the two biggest miners) on green steel, and Fortescue Mining is working with the big Chinese steelworks that they sell their ore to. A bit of a way to go before low carbon steel is a reality, but it's promising.

@swhbpocl

2 ай бұрын

Sweden does not have enough electricity production to cover any reasonable scale of green steel production. To produce all the required green hydrogen with renewable energy is a pipe dream. Only way is to build a lot of nuclear power plants. A total power of about 8 GW is required. That is about 13 reactors. Or 8000 to 10000 large wind turbines@that in fact is far from “fossil free” or CO2 neutral to build and maintain. Huge economical risk too.

@piotrd.4850

2 ай бұрын

@@swhbpocl Sweden has Norway nearby, with their 33 GWe of installed HYDRO capacity. PS: 8 GWe is more like 6 APR-1400 / APR+ reacotrs or ones like installed recently in Ouklitio-3

@rojavabashur6455

2 ай бұрын

@@swhbpocl This is not true, Sweden exports today 30 TWh per year and is increasing its production with 5 TWh per year already today. Its all already scaling at the pace needed.

Well done, now I have some hope for steel where before your talk I had basically none.

I never know whether your videos make me feel more encouraged, or more despairing, Dave, but, as ever, this one was definitely food for thought! Good to know that you are going to Everything Electric South, but it would be even better if you were to also come and see us northerners at Everything Electric North in Harrogate. The stage events are the most worthwhile part of the show and your presence would add gravitas and get us all thinking!

Thanks Dave, another great explanation of a complex problem!

@JustHaveaThink

2 ай бұрын

Cheers Jonathan. Much appreciated.

It will be great when adoption of greener steel initiatives become more widespread. Talked to a friend who works with steel, creating assemblies for construction projects, and he said the main issue is they have to import green steel from so far away that the transportation emissions eat up much of the emission savings gained during production. It's very obviously still good to buy green steel to support market growth for producers but eliminating the additional transport emissions seems pretty crucial.

@falconerd343

10 күн бұрын

That's a good point, not only does green steel currently cost more, it also costs more to transport it. But, we also need to demonstrate that the market is there so that investments can be made towards expanding the industry into new locations.

Great to hear that you will be at the Everything Electric Show. l've just been to the one in Australia and it was really worthwhile. The best part for me by far was the discussion panels. Given that your channel probably covers the broadest range of topics l expect that your talks will be very popular. l found that many people are genuinely interested in all aspects of the clean energy transition so l hope you are ready for the onslaught of questions. Best of luck.

Please consider a similar video on cement production.... Thanks

A fine calm summing up of where we are. Good work.

Here in Australia the Fortescue metal group is building green hydrogen production. With a view to producing green steel in the Pilbara.

@simonmckittrick5236

2 ай бұрын

😂

This is exactly what these types of channels should be doing, so thank you for revisiting these topics. It makes this channel feel like I'm actually learning about the future, and not just consuming techno-optimistic tales for escapism. Please keep em coming!

Setting the example by doing rather than saying is usually the catalyst to make others follow - even if it’s small scale there will be plenty of purchasers wanting to green up their end to end products as you say 👍

Always worth hearing your updates. Cheers Dave

Another compelling approach involves the use of hydrogen plasma to directly melt and reduce iron into steel. A pilot plant for this method has been constructed by voestalpine in Austria. The Process is called SuSteel And then there is noteworthy paper published in Nature addressing the management of red mud, a byproduct of aluminum production containing up to 60% iron, albeit being a hazardous material. The study demonstrated that melting it in an arc furnace under a hydrogen environment allows the smelting process without the need for additional additives.

Many thanks for this update, Dave! Time for me to just have a think! 🎉😊

Geez, I hope so. GFG green steel ambition here in Australia, is viewed from my front verandah. I watch the steel plant currently puff out red, black, grey etc, pollution, hourly/daily. The state Govt tells us they are going to have a Hydrogen plant working within 2 years, to supply GFG. Fingers crossed!!!

Been loving these follow-up videos......thanks for keeping us up to date, Dave!!

Great news you working with everything electric .

@JustHaveaThink

2 ай бұрын

Cheers Martin :-)

Love it that you do reflection and follow-ups 😊😊😊

@peterduff9281

2 ай бұрын

I expect only on selected topics.

Great video. Looking forward to the next updates in this space. Especially the MOE stuff.

Thanks for your update 👏👏

Keep up the updates, always great to see progress

Great video as always! Thanks for your time.

Great review, Dave. Thank you so much! I wish I could see you at any of the Everything Electric Shows, but alas it doesn't fit my schedule or location. Sorry. Keep up the excellent work.

Thank you for revisiting the topics.

The Molten Oxide Electrolysis is almost exactly the same method used to refine Aluminium.

@sridharrao6591

29 күн бұрын

The Hall Herault electrolysis cells do use carbon electrodes and CO2 emission is approx 1.22 t/t Al.

I like it that you go back and follow up! It's so important. The next thing to look at would be all the "carbon capture" proclamations in more focus, which so far seem no more effective than "clean coal" (which never actually happened, but was an effective delaying tactic.)

I sure am happy I found your channel so I can have a think. Thank you man for your well delivered information.

I would really root for the molten oxide electrolysis method, even if its yields are lower than the hydrogen reduction method, it still takes out a large chunk out, which is to produce green hydrogen using electrolysis...which itself is a fledgling and inefficient process.

Revision is essential for learning, learning is essential for improvement - and wow, improvement is what we need ! Thanks.

Great video. Keep up the great work 👍

@JustHaveaThink

2 ай бұрын

Thank you! 👍

Wow that sounds really cool! Love to see the progress/revisiting videos. It is really one thing for there to be hope in the outset and then how it's doing further along and that information is super useful I think!

Something to keep an eye out for over the next decade, is the North Sea artificial energy island being built by the Danish government in collaboration with a host of independent green energy suppliers. The project aims to initially bring CO2 neutral clean energy to over 10 million homes in Europe, and become a central hub for expanding offshore green energy capture and green hydrogen production for heavy industries and transport. The project was accepted in 2020, and greenlit in 2021 by the other European partners in the UK, Germany, Netherlands, and other neighboring countries who will benefit from the project. This will help fuel the mass scale adoption of carbon neutral electricity and green hydrogen (that up until now has been mostly subsidized through independent firms and limited budgets -all that is going to change). However, it is of course important to keep in mind that this is the largest island construction in human history, initially with almost 3x as much artificial land as the islands of Dubai -all of it with the sole purpose of green offshore energy production at a multi-billion Euro scale. So things can change and deadlines will be hard to maintain - as will budgeting. No one in the world has done this before, so it must be regarded as potentially the most ambitious pilot project ever. This is a project carried out by a nation with a population of less than 6 million people. Scale is not what matters. The will to do what's right, that's all that matters. The will to act. Everyone need to step up their game instead of looking to their neighbors and complaining they aren't doing their share. Just do yours, eventually others will follow. If Denmark with 6mil pop can do this, the US for instance with +300mil pop can at least do the same.

Lots of architects & developers are getting into making mass timber buildings, including high-rises, as an immediately available low-carbon replacement for "green steel." Look up "The Ascent" building in Milwaukee, Wisconsin, USA; currently the world's tallest mass timber building.

Thanks Dave!

Great overview, thanks! I think the key is this: 1. The fact that these methods are now close to being implementable at industrial scale and not TOO far off regular steel prices means that carbon pricing for steel in major economic zones is becoming a lot more realistic. 2. Many of the technologies that the process interacts with (renewable energy sources and hydrogen conversion) are still improving significantly, so the remaining price gap is likely to close further. That's why I think these technologies are a very good sign for the future, even if their immediate impact will be of limited scale. Especially because these do not appear to be complex "unicorn technologies" that never solve fundamental issues and never make it into widespread adoption, but something that can already be built with current tech and now merely requires some more operational experience to become a basic tool of the industry.

I doubt the arc furnace in the graphic uses "ultra high voltage" (whatever that means) more likely very high current at a relatively low voltage.

Canadian steel makers are going green. Both Hamilton and Sault Ste. Marie are both building electric arc furnaces

Being an Australian I cannot understand why Australia doesn't use our iron ore to make green steel in our country. This would even reduce emissions from the transportation of the iron ore. Or our country could make a big difference only deciding to choose to export iron ore only to countries that turn it into steel by green hydrogen.

@gregbailey45

2 ай бұрын

A bit of research turns up the fact that we are...

@scallywagII

2 ай бұрын

Yes I think that there is enormous potential in W. Australia. There is so much desert with 10+ hours sunshine year round. This could provide all the electricity requirement and the iron ore is already there. The existing transport and port facilities can ship out steel to world markets instead of iron ore to China.

@muthatrucker6485

2 ай бұрын

Because the democracy prevents the government building the infrastructure or business as the opposition will get the applause when the project finally finishes and then they can privatise it willy nilly without asking the population (Telstra, water, energy etc) But because other countries are willing to pay high $ for coal, gas, iron, it means Australia can't (won't) enjoy the cheap natural resources.

@muthatrucker6485

2 ай бұрын

Iron runs the planet, if we dictate who buys it we will be invaded. But it would make Australia very rich for a few years. Did you see what happened when our gov decided who couldn't buy our animals? Prices went through the roof and farms went out of business.

Another huge problem with this process is the iron ore must be over 67% . Currently only 3% of world trade in iron ore is over 67%. The majority is around 62%. How to get the concentration up? VERY expensive and energy intensive. Grind all that iron ore into a powder, then add water and gravity, magnetic, separate out the rock. Pump the remaining sludge into a tailings pond. The cost of upgrading iron ore is about 5 times the cost of direct ship ore. Also, a couple million tons a year of steel barely registers. Current annual production is just under 2,000 million tonnes.

@Quickshot0

2 ай бұрын

It is indeed not that much on the worlds scale, but on the other hand being able to produce millions of tons a year from a facility is a big step up in maturing the technology and getting a good grasp on the challenges one needs to meet. So in that sense this is a pretty big improvement, as it makes more clear what kind of costs one can expect as well as if there are any further significant improvements possible.

@Anopheles6

2 ай бұрын

@@Quickshot0 Yes. With costs, we also need to remember that all the estimates (30% more, etc) is assuming that all inputs are still produced and provided with fossil fuels. If you add everything downstream produced with green energy, costs are 3 or more times as much. The world isn’t prepared to pay this much more for everything. I’m also assuming their cost for iron ore is a local, upgraded ore or pellets. The production cost of direct ship iron ore is on the order of $20/t, not including shipping, etc. The production cost of upgraded ore is on the order of $100/t, including mining, infrastructure and production costs. But it also commands a higher price on the market. Still not as profitable as direct ship ore.

@Quickshot0

2 ай бұрын

@@Anopheles6 I'm not sure why energy costs would have to go up for there. Sweden has access to fairly plentiful hydro power I thought, and can probably get some good locations for wind power at competitive prices. Which one could try to buffer with the hydro power to get a steady power source. Admittedly this may not work as easily for other countries.

@Cyrribrae

2 ай бұрын

​​@@Quickshot0I mean I'm just not sure why exactly they think the figures quoted are including fossil fuel energy in the first place. It's an assumption with no backing and directly contradicting what was said in the video. Doesn't mean it's impossible, but I'd like to see some sourcing. I know very little on metallurgy, but some cursory research shows that while direct ship ore is popular in steel making because you can skip the cost of purifying ores, scrap iron CAN be used in the DRI process. Yes, there are more impurities in the intermediate iron. But that's not the final product. You just purify out the bits you don't want when you go and make the steel (immediately) anyway.

@MrTheropod

2 ай бұрын

@@Quickshot0 Unfortunately this project is an utopia and economic disaster. There is a group of economics here in Sweden that has turned every stone and revealed this fantasy. To build windpower is expensive, hard to get all the permissions AND there is no power to produce when there is no wind... Hydro power can not be expanded more and green steel production needs 50% of the electricity the whole country uses today. The thing is we need more electricity for the new cars etc.and the first next nuclear facility will be ready in about 10 to 15 year from now. This green steel project is pure fiction and should be abandoned .

Ocean-based carbon capture isn't stupid. It's not a gimmick, and it's actually intended to remove CO2 at a gigatonne scale. On the topic of clean energy for producing green hydrogen for steel production, and various other things, here in Canada, we have a massive amount of hydropower. We have 160GW of untapped hydropower in 9 out of 10 provinces, and not including the territories. The Northwest Territories alone, we there's 11.5 (or 13 GW if you include the Slave River between the NWT and Alberta) of untapped hydroelectric potential. Hydropower is not just a source of electricity generation. It's a means of achieving grid stability and can help integrate tens of GW of wind, solar, and also inflexible sources of energy, like nuclear.

@drfisheye

2 ай бұрын

He did make a video about ocean-based carbon capture. kzread.info/dash/bejne/na6BuaurmJnIfJc.html

In a collaboration with SSAB, the watch brand Triwa has two models made with fossil free steel from the Hybrit project. I own one of them. It’s a nice watch.

Finally a use for hydrogen.

@gregbailey45

2 ай бұрын

Hydrogen has long been in use in various industrial processes, the big problem being how it is made. Most by far is made by steam reduction of methane, resulting in an enormous carbon footprint, thus the push to greenify it by using electrolysis based on renewable energy.

@allangibson8494

2 ай бұрын

30% of global natural gas production is used to make hydrogen. It is mostly used to make ammonia as a step to making nitrates for fertiliser. The carbon dioxide generated is a waste product to get the oxygen out of the air used as a nitrogen source.

Yeah subsidy reallocation important indeed! Similarly difficult to aviation perhaps BUT wow some people in aviation see incredible 2030s developments for planes ~45% by weight batteries🤯

Cleveland Cliffs is already using hydrogen here in the US. They are using it this year in their largest furnace. Has already made a difference in a smaller furnace and they are already charging for the H1 use to make it. So.... get on board.

What an exciting development in steel production. Steel is a heck of a carbon contributor, so getting the industry turned on to hydrogen would mean cleaner air for everyone. Surely it'll cost a pretty penny, but no doubt worth it.

These videos where you revisit old topics are really valuable. I would love to see you mentioning the fact that the most important part is always to _reduce_ our consumption of material inputs and production of waste outputs. 'Green' steel sounds great but the most effective thing is to simply use less.

Loved every second!

Thanks Dave, fascinating again... Quite amused at the search term for carbon capture at around 3 minutes.. :D True, but not a loaded search question ehh... ;)

@EdSurridge

2 ай бұрын

Carbon Capture. If it can work towards CO2; reduction then that saves lives worldwide that at are present inevitably killed .

@peterchandler8505

2 ай бұрын

@@EdSurridge This is the very big problem: " If it can work towards CO2 reduction "... So far it has failed and is very expensive, I can't find the reference for who calculated that for carbon capture to work well enough by around 2050 (might have even been on this channel.. Dave?), it would need more electricity than the world produces now... Carbon Capture is a fig leaf for the fossil fuel industry to continue burning fossil fuels, with the relatively little CO2 so far captured often used to enhance the recovery of oil (to burn) in near depleted wells where the last bits of oil are hard to extract. Perhaps the best summary, with I understand accurate figures so is well worth checking out, was produced by The Juice Media, titled "Honest Government Ad | Carbon Capture & Storage". Their tone is somewhat flippant, even sarcastic, but the science and numbers there are good, and is most probably a reliable description even though the tone is a ... somewhat earthy Aussie style... A more sober view comes from the MIT Technology review: "Carbon removal hype is becoming a dangerous distraction" Carbon Capture is pushed hard by the fossil fuel industry, and the politicians they have ... captured ... with their ... generosity (figures for the US are fairly widely available online... who said bribery & corruption...). I think that you may have noticed in my comments online if you have seen them, and Dave (along with many others) ... ... just possibly ... ... may have mentioned on his channel, that the fossil fuel industry does not quite have the greatest history of integrity when describing issues around Climate Change... Although I am not aware of any research supporting this suggestion, but it would not surprise me if the fossil fuel industry has killed more people than tobacco and malaria combined since the scientific community have been clear on Climate Change from about 45 years ago.

@gregbailey45

2 ай бұрын

​@@EdSurridge"if it can (be made to) work" being the main issue...

@peterduff9281

2 ай бұрын

That's ALWAYS the main issue of these things.@@gregbailey45

Great stuff as always, see you at show.

@JustHaveaThink

2 ай бұрын

Cheers Rob. See you there :-)

Great video, Dave, Saarland intends switching their steei industry to hydrogen, imported from France and produced using nuclear power. Apparently Cattenom is already planning new reactors.

@ItsJust2SXTs

2 ай бұрын

Isn't Germany closed all nuclear plant and get back coal plant online? Find it weird they now go "green steel", its like lithium mining "other country doing it is fine... doing it here? no way!" Same using power from country that use nuclear while in Germany is forbidden...

@EdSurridge

2 ай бұрын

At what cost. They have serious wind potential and a high area per person for solar

Nice to see you using Ecosia

That steel production is supported by subsidies is a kind of news (we do see anti dumping duties but actual active subsidy on production is something i am not aware of). It would be interesting to see which countries are subsidizing steel production and in what form.

Now we need green concrete to go with the green steel.

Love the into quips. Get better every week.

Great episode! It did make me have a think, a rethink even. I've always considered steel production such a small part of the overall problem that is just moderately interesting at the moment, but as we've reached a point where power generation and road transport have developed far enough for making the rest of that transition mostly a "downhill journey", economically viable low carbon steel production remains a difficult challenge. As steel production with current common techniques cause similar amounts of CO2 per unit of mass produced as use of fossil fuels it seemed so strange to me that steel production was such a big part of the problem, but apparently we use almost half as much steel as we use oil. I think it will be difficult to transition the steel industry to really low carbon production, but there's also a silver lining, steel is easy to recycle. Recycling steel requires much less energy than producing it from ore. So, the "new" steel we need is the amount we want to increase current use with, plus whatever part we let turn into rust. We do recycle a lot of steel, and if we get even better at that, and place an international, and relevant, price on carbon emissions, using steel slightly more economically, we might be able to reduce the production of new steel quite significantly, without too much of those minor inconveniences some people find catastrophic. Here in Sweden there's already been one public "debate" about how much green steel production would increase the price of electric power, as if we're going to make the shift entirely, soon, and without any consideration to the grid situation or much additional power generation. If they're planning to run the electrolysers at their convenience without any regard to situation on the grid, well, that would probably be problematic. If they can adjust their production somewhat to the situation in the grid, it might even reduce the need for energy storage. It's much easier to store iron ore and steel than it is to store the energy it takes to turn that ore into steel. Not running at full capacity means lost revenue, but when price of electricity varies between negative and absurdly high, some level of control of the power draw might be needed to make it feasible at all.

You do awesome research Dave. I like the hydrogen idea the best. Simplicity. When you go to your car show could you make a video on the results?

@JustHaveaThink

2 ай бұрын

We will see. I may not get time - the events are quite hectic.

@juliusmazzarella9711

2 ай бұрын

No worries. Hope all goes well for you.

Steel in many uses can be replaced by carbon fiber-reinforced polymers which are 3 times as strong. It can be produced in a CO2 rich atmosphere such as cement manufacture by passing the gas through an electrolysis system to make carbon nanostructures. There are several Canadian companies doing this. In the construction industry it can replace steel rebar, steel girders and for supporting weak beams and structural joints. It can then make reinforced concrete structures much thinner, hence reducing the carbon footprint of both the steel and the concrete. It is probably more expensive than steel but may not be if there was carbon taxes. Dave, a good subject for one of your programs.

VOESTalpine is also working on this since a few years. But because there is not much hydrogen and cheap gas the using the gas till the solving the problem. By the way: The VOEST is the inventor of the Basic oxygen steelmaking (Linz-Donawitz steelmaking).

I love fully charged I love their stuff!

3:25 this is like the blast furnace

Have a good day from productions and a good night production ideas 😀

Australia is going heavily into this, as Iron Ore is our #1 export and the continent has huge renewable energy potential. The Government wants to make Green Hydrogen off the excess renewable energy during the day (solar+wind) and night (wind). Then to strategically positioned "hubs" where steel making was traditionally done, in order to make a finished product without being reliant on an "Indo-pacific neighbour" 😂

@jbmurphy4

2 ай бұрын

hydrogen and Steel production seems like the perfect way to use up the peaks during very windy days etc.

7:15 they won't just have access to plenty of local hydro power, the city of Boden is also right on Ore Line railway (Malmbanan) that takes iron ore from the LKAB mines in Kiruna and Malmberget (town name that literally means "the Ore Mountain") to the coast (where the SSAB steel plant is located). btw - SSAB's largest shareholder is the LKAB mining company which in turn is owned by the Swedish state. Vattenfall the power company is also owned by the Swedish state. So the Hybrit project mentioned first in the video is quite closely tied to the Swedish state.

This is amazing in terms of manufacturing developments for the world!

I feel that there's enough small updates and news now that you could start including 10-15min quick news videos on a regular basis (weekly or less if there's not enough for that). It'd be good for thse little updates on companies that aren't worthy of a whole video. Like, when HYBRIT finally press the equals button an declare that number.

Thanks

The Finnish government owns about 6% of SSAB and we are looking foward to seeing their investment into Raahe, Finland factory. At least in 2021 their CO2 emissions were more than 4 million tons. Just a handful of factories in Finland emit more CO2 than all cars.

This may be the best way to save energy. Focus first on the industries that spend the most and are centralized enough to be regulated and modified to use green Hydrogen. No solar or wind energy should be lost, it should be stored as hydrogen when possible.

We need to thank the steel industry for feeding our plants! Thank goodness for humans that our planet is green and getting greener, for real this time!

My money is on MOE. A simple process that is similar to how aluminum is made.

Fortescue also has some kind of iron electrolysis experiment going on that is apparently at low temperature.

Thanks for the update as I often wonder just where did those technologies go and what are they up to today. I keep a close eye on Africa as they are on a path of learning to process their own raw materials and thus stop all the outsourcing of these raw materials. I keep an eye to see just how they are going about doing these things for if they start off green then all will be good in the new age to come but if not then it's back to square one I suppose.

@EdSurridge

2 ай бұрын

Another good point because of the continents protected population very fast rise

Steel production has the possibility of migrating to be a supply following industry, because it is a batch process and storage of steel is feasible. So you could store hydrogen on a daily basis to deal with nightly fluctuation in PV solar, and idle capacity for a few weeks if you had a wind drought in a particular year. This might work if folks implement tariffs on steel based on carbon used in manufacturing, to drive Chinese steel down in the market. Using hydropower to produce steel doesn't make sense - you should be using it to produce fertilizer since the current production process for ammonia requires consistent steady state operation.

@gregbailey45

2 ай бұрын

The trick is to have an internationally recognized carbon tax agreed to. That is such a simple measure that would strongly incentivise reduction of carbon emissions. But of course, there would be losers, and they seem to have big bucks at stake, so... 😢

@richdobbs6595

2 ай бұрын

@@gregbailey45 That is a trick that is not going to succeed, since neither China, India, or the USA will go for it. However a tariff on effectively Chinese steel would appeal to both the USA and Europe.

Just have a think: It is possible to make things much easier, the problem is that, the cost reductions make companies uneasy. You can build machines that is much greener, and cheaper to operate. If you remove the Gas tank off of heavy equipment, and incert its own personal powerplants. You need only enough electrical power to operate. Talked to the manager of the power company in town, and explained that once i was ready to show a functional proto-type let them know, because unlike most energy sources this one can be mobile, unless one makes a much larger system. basically its particle electric.

like as always 👍

Apart from MOE, there's also low-temperature electrolysis of iron ore. Unlike MOE, it produces sponge iron intead of steel, but the technological risks seem to be much lower. The potential huge advantage of electric processes is that you save the big (~50%) energy loss from producing hydrogen as well as the capex for the electrolysers and other hydrogen infrastructure.

super kudos to pronouncing Salzgitter!

Good to see some progress. I hope you can do one on concrete, unless you have done one already that I have missed?

Excellent update. I really appreciate your growing pragmatism in these videos. It's astounding to me how many dead ends we are pursuing, and the more critical the analysis the better off we will be. One recommendation for these types of videos is to give more better context to numbers your report. For example the world uses about 2B tons of steel every year and when you report that a new green steel facility is going to provide 2.5M million tons, that's only 1/10th of one percent. I suggest wherever you are able, to provide better global context on the de minimus scale of these technologies. A personal pet peeve of mine is the constant claim that wind and solar are the least expensive forms of electricity supply, when in fact when grid storage is added to the equation it ends up being the most expensive. In order to make intermittent wind and solar viable for baseload it would require three weeks worth of grid storage. Currently the world has less than three seconds. Nobody ever talks about these things.

@tristanridley1601

2 ай бұрын

Liked the first half of your comment, then sighed at the second. Do you have any BASIS to claim we need three weeks of storage, or that even that huge level of caution would cost five times as much? I think you overlook economies of scale when applied to larger and larger networks. We're enhancing the grid, not getting rid of it.

@moletrap2640

2 ай бұрын

@@tristanridley1601 and I am not sure your reference on five times as much?

@peterduff9281

2 ай бұрын

The world's electricity storage currently stands at a few seconds worth of current energy use. So how are you going to warm your house or boil the kettle in the morning if it was a calm night? Or even if it wasn't! The UK might even have no operating nuclear stations in a few years' time because of inevitable decommissioning and the fact that we've made very little investment into replacement in the last 25 years.@nridley1601

Always good to check if things are economically viable. It's not a real breakthrough if it doesn't really happen.

Natural Hydrogen… let’s have a think on that. See power points from our Geological Survey of Canada’s April 2024 workshop on this emerging topic focused on Natural Hydrogen resources in the earths crust. Hosted out of the GSC Calgary office.

The 20-30% increase could be dealt with by removing subsidy from oil and gas, win win 🎉

Great vid, thanks. Because you don't need such crazy temperatures & heaps of infrastructure is it ridiculous to think that you could have small-scale steel production? The graphic showed the electric arc furnace takes 3.4MWh/ton. That's 3.4kWh/kg. I'm off-grid solar and when my batteries are full I often end up 'wasting' 10kWh of power on a summer day. Making 3kg of steel would be a nice way to use that power!

A worthy topic. I have visited a number of steel making plants of the traditional variety and they were very impressive. However getting back to the topic here, my own country, the UK, has effectively sold all our iron and steel making operations to Indian and Chinese companies. In order to wave the green flag, the government are subsidising Tata to shut down the blast furnaces and replace with electric arc furnaces. At first glance, that would reduce carbon emissions (depending on the source of electricity), but they can only process pig iron and scrap iron/steel. They cannot produce pig iron which will then have to be imported from India and China which will increase production (and profits) from their blast furnaces. What a surprise. As the production of hydrogen from electrolysis is very inefficient, There is unlikely to be enough electricity supply available to satisfy global demand for the hydrogen needed. It certainly does look like a workable system, but perhaps the answer to the electricity supply for hydrogen production would be small modular reactors at the steel plants. I do not know how things will develop, but I predict that our government will announce that the UK is a "World Leader" in green technology (translation:- we don't make the stuff anymore but we are spending a lot of money subsidising foreign companies).

Great as usual! I would like to see how much electric energy/ton steel is needed for the different processes. Just a rough calculation, if coal kWh is substituted w electric kWh, it would use more than half of Swedens electric power production to produce the steel, or?

I work at SMS group, the manufacturer of all the equipment in H2Green steel, the first plant in industrial scale that will be comissioned in 2025. If you want to talk with an expert on the topic, I can arrange that.

At 0:55, what is what looks to be "ib" to the right of the 👎icon? Since this means something in my ibGib protocol, I'm always curious when I come across it as it happens very rarely

Check out Calix's Zesty process developed in Australia, early days but the initial testing has been positive. It addresses iron ore fines.

And "carbon taxes" should just be relative to whatever the zero/low carbon alternative is. In the case of steel, they would pay some percentage of the difference between the current methods and the zero carbon methods, and that percentage would grow over time until it eventually reaches 100%. This works doubly well, because not only does it encourage doing more of the zero carbon stuff, but it also further encourages them to increase the efficiency of the zero carbon stuff, since the closer they get to price parity, the less they pay too.

Sweden and Finland are building a green hydrogen system around the Baltic Sea's Gulf of Bothnia and they will connect everything with a hydrogen trunk pipe. The hydrogen will indeed be used for steel first. Later when they have more capacity perhaps it will be used for peak electricity/heat production.

@atvheads

2 ай бұрын

The energy needed for the whole steel industry in Sweden is about half of the total energy Sweden produce. So this is bullsh...

@wombatillo

2 ай бұрын

@@atvheads Hydrogen is only a part of the energy. They won't recycle electricity through the hydrogen process and there is plenty of electricity that will still be used by the arc furnaces. They will just replace the coking coal with green hydrogen. Furthermore there will be HUGE off-shore wind farms in the Gulf of Bothnia and this power will have to go somewhere. Hydrogen production is a good candidate to soak gigawatts of windpower. Eventually chemical plants, fertilizer plants, power plants and other industrial users will join the pipe. There are also plans to connect the pipes to Estonia and Denmark. The only part of the plans I'm really skeptical is the plan to use the hydrogen to fuel heavy trucking going up and down both Sweden and Finland and which is currently powered by diesel. I have serious reservations about the feasibility of hydrogen trucks.