I find Rosie far more credible in her assessments, although as I have said elsewhere in her questioning of Paul Martin, a sceptical expert on hydrogen, the central issue which he raised was the practicality of putting as much hydrogen by energy content through existing natural gas pipes, when AFAIK there is no reason why we should want to, as we are going to be cutting back on energy demand through a host of technologies, she appears to have missed that one.ДЄs for lower temperature production of hydrogen, in fact efficiencies can be boosted quite a bit by upper the temperature somewhat, without reaching anything like HT electrolysis. How much does this cost per KWh, what is the cycle efficiency, and what is the rate of self discharge, for starters?' Talking about applications not specs as the webisite does encourages flannel. ' I am afraid both here and on the Gelion site every critical parameter needed to assess the technology is missing. You might like 'just Have a Think'series with Dave Borlace which is also UK based and quite informative.Д 7 June 2022 at 01:29 treat Dave Borlace with far more scepticism than Rosie, who has a much firmer engineering background, although of course, like the rest of us, she does not think of everything.Д«ut IMO Dave knows far less about what are the relevant parameters we need to properly evaluate stuff so gives too much credence to some far out speculative tech. I watched the YouTube post on hydrogen and will look at the one on nuclear power you just posted a link to.

Дavemart, Thanks for the link to 'Engineering with Rosie'. The fast reactors burn up most of the waste. They are planning on building their initial reactor in Kemmerer which is in southwest Wyoming not that far from where I live on the site of an existing coal fired power plant that is scheduled to be shut down. Trade named Natrium which is just Latin for sodium. Hopefully, TerraPower will build a demonstration plant for their small modular sodium cooled high temperature fast reactor. Even better would be high temperature thermo-chemical hydrogen generation but that requires higher temperature than is generated by a light water reactor.

If you are going to make 'green' hydrogen, using nuclear power and high temperature electrolysis is much better than just using electric power and low temperature electrolysis. Interesting video, as always from Rosie, though, and very thought provoking. The only real downsides are that this generation of SMR's still produce the same waste as traditional reactors, another overstated issue in my view, but more importantly they can't really contribute much until post 2030. Whilst my own view is that the challenges of piping hydrogen are overstated, avoiding them is better yet.

They target around $58MWh, which for an on-demand solution, ie you have to have storage costs included in renewables, is pretty good.ДЄs Nuscale tell Rosie in response to her questions, they took on the extra challenge of making it fully adapted to very efficient hydrogen production vie high temperature electrolysis so that they could produce hydrogen right where it is needed for industrial processes or even local heating systems etc and challenges of transporting or piping hydrogen could be finessed, and to enable greater flexibility so that if the electricity is in low demand, then hydrogen is produced instead. I fancy Nuscale's SMR solution, - here is a video from 'Engineering with Rosie' High temperature electrolysis is already garnering attention and accolades as a cost-effective and viable solution to create low-cost, clean hydrogen, which is critical to meeting aggressive decarbonization goals. Solid oxide technology is well suited for nuclear applications, efficiently harnessing steam to further improve the economics of hydrogen production. We are proud Westinghouse has turned to Bloom and our solid oxide technology to supercharge the clean hydrogen economy. With the ability to operate 24/7 and provide high-quality steam input, nuclear plants are well-positioned to utilize electrolyzer technology and produce substantial quantities of clean hydrogen with minimal disruption to current, ongoing operations.

Westinghouse and Bloom Energy will jointly develop an optimized and large-scale high-temperature integrated electrolysis solution for the nuclear industry. The companies are teaming to identify and implement clean hydrogen projects across the nuclear industry. Westinghouse Electric Company and Bloom Energy Corporation have entered into a Letter of Intent to pursue clean hydrogen production in the commercial nuclear power market.

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