Member Info for Far2L8

By the way the comment at the end "That's a lot of water." was mine.

Based on previous discussion about water, I was curious to know what the water consumption would be per ton of hydrogen produced, so I put the question to Gemini and this was the response:

This is a practical question that moves beyond the theoretical and accounts for the industrial process, including water purification.

The water consumption for industrial electrolysis, especially with high-efficiency technologies like PEM (Proton Exchange Membrane) used by companies like ITM, is significantly higher than the theoretical minimum because of the water pre-treatment process and system cooling.

1. Water Consumption Rate Based on data for commercial PEM electrolysers, including those referenced in ITM-related documents: Theoretical Stoichiometric Requirement: 9 kg of water (approx 9 L) is chemically required to produce 1 kg of hydrogen.

Industrial Water Withdrawal/Consumption: The total water required, including de-ionisation and cooling, for commercially available PEM electrolysers is typically higher than the theoretical amount.

A common range cited for total water consumption (withdrawal) for PEM electrolysis is 17 to 20L of water per kilogram of hydrogen produced.

Using the higher, more conservative figure of 20L/kg to account for the entire process (including purification and cooling losses).

2. Calculation for a Ton of Hydrogen. A metric ton (tonne) is 1,000 kg.

The required volume of water per ton of hydrogen is calculated as:

Volume of Water = Water Consumption Rate times Mass of Hydrogen

Volume of Water = 20 L/kg times 1000 kg

Volume of Water = 20,000 L

Since 1,000 L = 1 cubic metre this is 20 cubic metres of water.

Therefore, for a large-scale PEM electrolyser like those manufactured by ITM, approximately 20,000 litres (or 20 cubic metres) of water would be required to produce one metric ton of hydrogen, taking into account purification and process needs.

That's a lot of water.

Their press release at the time didn't make much sense either

#wookiemonste. Anyone connected the dots with Alpha 50 and Hydropulse?

I posted the following on 2 Jul 2025 20:01

"I wonder If the mystery 500MW capacity reservation is for Hydropulse"

But it was dismissed by many on this board.

Sorry Bsid fat fingers the eight some how inserted itself.

From a further search: Percentage Reduction (Key Focus) ITM Power has repeatedly emphasized their iridium reduction in terms of cumulative percentage:

Initial Reduction: They had already lowered iridium loading by over 80% in the years leading up to their most recent announcement.

Latest Improvement: They validated an additional 40% reduction in iridium loading while maintaining stack performance and longevity. This compounding percentage means their current iridium usage is a small fraction of their original baseline (e.g., if their original loading was 100% and they reduced it by 80% to 20%, a further 40% reduction on that 20% baseline brings the total reduction to 88 total reduction absolute Quantity per MW. Before announcing the latest 40% reduction, ITM had stated that their PEM electrolysers required 400 of iridium per 8 MW of electrolysis capacity. This 400 g}/MW figure was cited as meeting the EU's 2030 precious metal loading target for PEM electrolysers.

So applying the latest 40 reduction to this figure suggests their new target or validated level is approximately 240 of iridium per MW, 400 times 0.40. Note: The quantity in g\MW is often used by manufacturers to discuss cost and supply-chain constraints for large-scale projects, whereas mg/cm (milligrams per square centimeter) is the standard metric for catalyst layer technology itself (like the VSPARTICLE figure). ITM Power does not publicly disclose its current catalyst loading in mg/cm.

ITM uses a different metric, so going on what they stated in 2023 that it needed 400g (14.1oz) of iridium per MW of electrolysis capacity, and then said in 2024 that it had reduced the amount of iridium required by 40%, suggests that it now needs 240g per MW. VSPARTICLE's 0.4 \ mg per sq centimeter development sets their benchmark for specific iridium usage in terms of catalyst loading per unit area. I'm sure someone knows how many square centimeters ITM uses per MW and can therefore compare the two. It's a bit beyond me.

Abstract

While mixing iridium (Ir) with ruthenium oxide (RuO2) has proven to be an effective strategy for reducing Ir loading in anode catalysts for proton-exchange membrane (PEM) water electrolysers, achieving industrially relevant long-term stability typically requires an Ir-rich, Ru-lean combination. Here, by combining density functional theory with Metropolis Monte Carlo methods, we discovered that sufficient stabilization in the RuO2 lattice could be achieved with less than 50 at.% of Ir, and that Ir in the first subsurface layer plays a critical role. By effectively dispersing Ir dopants within the RuO2 lattice, we demonstrated an Ir:Ru atomic ratio of only 1:6 that exhibited exceptional stability for over 1,500 h of continuous water electrolysis at 2 A cm−2. Our Ru6IrOx catalyst has the potential to reduce Ir loading by 80% compared with current commercial PEM water electrolysers, and its stability was further validated under industrial testing conditions in a 25-cm2 PEM electrolyser.

That's the problem, no real figures. They only say it reduces Ir loading by 80% compared with current commercial PEM water electrolysers. They don't identify who's PEMs or at what stage of development. It might say in the report but you have to buy it.

New catalyst cuts iridium use by 80%

https://interestingengineering.com/innovation/iridium-cut-catalyst-green-hydrogen

Why some have turned on Digitalis.

I've read and re read his posts and it is beyond me why anyone could make the interpretations some have made.

I do think that the fish has made some hyper sensitive to negativity and making subtle innuendos as to the intensions of posters does nothing to encourage harmonious exchanges, or maybe that is their intension. To use the same weapon, may be they are working for the shorters.

The shorters are in trouble and they don’t know what coming.

Wookie, I think they do know what's coming ;-))

you can smell the fear from here.

I have what I consider enough shares for now, bought at an average price of 36.23p. I've got to the age where I should be selling a chunk to spend not buying and I've promised myself I will do just that when they reach £7 again, under pressure from she who must be obeyed. However, from the comments of the lucky 25 and the fact that the price is sinking back, I'm sorely tempted to aquire some more before that point is reached. Not a word to the missus mind.

Not really interested in details which were given in confidence, just happy to hear that the visit was a success and has reinforced the confidence of the lucky few.

The rapid expansion of Artificial Intelligence (AI) is leading to an unprecedented surge in global data center electricity demand. This is creating a major market opportunity for fuel cell technology like that developed by Ceres Power.

Curtesy investordotcom

I've told you a million times not to exaggerate :))

The lack of green boxes suggests that the shorters do not pay for negative posts over the weekend. Stand by for a deluge on Monday.

And with a pinch of salt :))

It's not a talent, it's AI doing his bidding.

Monolithic Gyroidal Solid Oxide Cell

A fuel cell that is exceptionally powerful for its weight, capable of producing over one watt per gram. With a simplified manufacturing process, the Monolith is created in just five steps. A streamlined process that eliminates the need for heavy metal components and fragile seals enabling it to withstand extreme conditions, including temperature swings of 180°F crucial for applications in demanding environments.

In electrolysis mode, the Monolith fuel cell produces hydrogen at a rate nearly ten times faster than standard models. The Monolith’s performance under extreme conditions and its ability to produce hydrogen efficiently underscore its potential and represents a remarkable leap forward in fuel cell technology, offering a lightweight, efficient, and durable energy solution.

https://share.google/v3ttWhXFxdHzAFrkp