First Nuclear Powered Hydrogen Generation Facility Goes Online

German, UAE, Egypt Consortium Signs $34 Billion Hydrogen Deal With Mauritania

..."the overall green hydrogen production capacity is set to be 8 million tons of ammonia or other hydrogen related products. The total electrolyzer capacity is set to be around 10GW. "...

https://oilprice.com/Latest-Energy-News/World-News/German-UAE-Egypt-Consortium-Signs-34-Billion-Hydrogen-Deal-With-Mauritania.html

What does <...1.25 megawatt of zero-carbon energy per hour...> mean?

Er, <...the overall green hydrogen production capacity is set to be 8 million tons of ammonia...> over what period of time?

You are totally right, power divided by time (megawatts/hour) is meaningless.

"Overall, brown ammonia production is energy intensive, consuming 8 MWh of energy per tonne of ammonia."

https://royalsociety.org/-/media/policy/projects/green-ammonia/green-ammonia-policy-briefing.pdf

I would assume nuclear energy (pink ammonia) would be about the same. If the power is 1.25 megawatts, it should take about 6.4 hours to make a tonne of ammonia. Eight million tons will take a lot more power and time to produce.

These are 2 different things...the pilot plant is a small test and research facility...it is up and running....

https://www.researchgate.net/figure/Efficiency-and-hydrogen-production-capacity-vs-stack-power-consumption-at-75C_fig3_316879098

The second article is about an agreement between 3 countries to produce a certain amount of hydrogen...they think it will take about 10 GW of electrical generation to produce 8 million tons a year..

So it seems that they will be diverting 1,25 MW of electrical generation which could have gone to the grid for their little "experiment"...wonder if/when they will figure a way to use waste heat from the cycle to generate the hydrogen. As there is quite an abundance of heat discharged to the atmosphere from all power plants, wouldn't it make more sense to find a way to use this "waste" heat for some useful purpose?

Ah! There you go, trying to make sense of all this carbon-free nonsense!

Don't you know that we have to create problems so that politicians can subsidize their cronies in order to solve them?

Bingo...first it was going to be an ice age then we were all going to be underwater because of global warming and melting ice. Now that climate change is a given, they have to figure out some other way to profit in the two things they crave, power and money.

Politicians need to have some current manufactured crisis so they can exert more control of the masses as they try to "save the planet" or some other ridiculous cause. And as you point out there is no problem with filling their (and all of their crony friends') pockets along the way with our tax dollars.

Welcome to the real world, Neo...

But back to the original point, why not figure out some way to use the waste heat that normally goes to the cooling towers or local water supply for some "green" use? (I know, low grade heat, blah, blah, blah...)

@ PWSlack, simple maths, 1,25MW = 0,560Kg Hydrogen am Tag,
8 million Tons = 8000000000 Kg / 0,560 Kg = 14285714285 days = 39138943 years

However it has been estimated that a Nuclear Power Station produces roughly 1 Gigawatt a year, so we would have the following calculation;

1 Gigawatt = 1000 MW /1.25= 800MW per annum/365 days = 2.91 MW a day x 0,560 = 1.63 Kgs per day.

m
The answer to your question is 8.000.000.000 Kg / 1.63 Kg = a very long time !

None of the dimensions of these quantities make sense here:

<...1,25MW = 0,560Kg Hydrogen am Tag [from German "per day"]...>

<...1 Gigawatt a year...>

<...800MW per annum/365 days...>

<...2.91 MW a day...>

@ PW Slack, sorry had forgotten a factor in my calculation. S*** happens !
so using the RE Ginna Reactor figures, (Palo Verde, AZ)that plant produces about 4697675 MW a year on average.
The requirement is 30 MW a day to produce .56Kg
So 469675 / 1.25 = 3758140 MW available in a year or 10296 MW per day. so 10296 / 30 = 192 x 0,56 = 107 Kg a day
8000000000 Kg / 107 Kg = a very long time but the more interesting exercise is how many miles could a vehicle travel on that amount of fuel ?

None of the dimensions of these quantities make sense here:

<...30 MW a day...>

<...3758140 MW available in a year...>

<...10296 MW per day...>

It seems <...Sh!t happens...> and is still happening.

You need to watch your significant figures--you are "inventing" accuracy that doesn't exist! Most of the input data is 2 or maybe 3 significant figures, so you should not go more than that. Therefore 4700000 or 4.70 x 10E6 is plenty accurate enough. By the way, how did 4700000 become 470000?

Look at the information given by the first post. it requires 1.25MW per hour to produce 0.56 KG
So 1.25MW per hour = 24 x 1.25 = 30 MW per day to produce 0.56Kg material so to answer your question as to how long will it take to produce 8 million tons as I said will depend on how much power is available at the source.
If you reverse the calculation you can divide the 8 million tons (8000000000 Kgs) by 0,56 Kg and work out how much enfergy is required then divide that figure by the amont of energy available a day. That will also give you the answer to your question.
Maybe you should try explaining why you are saying my figures don't add up !

As PW keeps pointing out "1.25MW per hour" does not have any meaning in this context***:-

The Watt is a rate of consumption or production of energy equal to 1 Joule per second.

_{***I suppose there might be times when one might want to refer to a rate of increase of energy transfer when "<unit of energy> per <unit of time> per <unit of time>" would be appropriate.}

If you look at the first post from Solar Eagle he refers to a article from Constellation where they stated that it requires 1.25MW per hour of energy to produce 560 Kg of Hydrogen per day.
1,25 MWh per hour = 24 x 1.25 MWh = 30MW per day.
8 millon tons is = 8000000000 Kg
560 kg / 30 MWh = 18,667 Kg = 1 MWh
8000000000 Kg / 18,667 Kg = 428571429 MWh Energy. Energy available in year 4697676 MWh
428571429 / 4697675 = 91 Years
Calculation based on using the available information from the Palo Verde Nuclear Power plant it produces on average 4697675 MWh per year.

If hydrogen has an energy content of 33.6kwh/kg, then in one day the 560 kg of H2 produced is the equivalent of 19Mwh of energy. So the reactor uses 1.25 × 24 = 30Mwh/day to create 19Mwh. Sounds like a losing proposition.

Not 100%,but what other "clean" process can it be compared to?

Hydrogen contains more energy-per-pound than batteries,so it would help solve the distance problem with batteries.

The problems currently are storage and engine modifications,or fuel cells,or both.

It may be possible to store hydrogen on board using hydrogen-bearing chemicals (NH3?),and used on demand,perhaps electrolysis combined with ultrasonic energy at the proper frequencies and pressures would make it more efficient.

I agree we should find a way to use waste heat,and also harness the energy of nuclear waste to produce electricity,instead of melting salt domes on top of it.

Ammonia has 9X the energy density of Li-ion batteries, 1.8X the energy density of liquid hydrogen, and 2.8X the energy density of 10,000 psi compressed hydrogen. Jan 18, 2022

Hydrogen is significantly more energy dense than batteries, which means a fuel-cell pushed powertrain will weigh less. To illustrate, for a 800 kms range truck, the difference can be as much as 2 tons. Consequently, fuel cell technology allows for longer driving ranges and heavier payloads.May 27, 2022

https://www.umicore.com/en/newsroom/fuel-cells-battery-difference/#:~:text=Hydrogen%20is%20significantly%20more%20energy,driving%20ranges%20and%20heavier%20payloads.

You would have to compare the efficiency of whatever you are replacing, for instance charging batteries, taking into account first the cost of the batteries and life expectation, then the charging efficiency...there are losses in all energy production and storage, transport and use...Battery banks are dependent on electric being on site, that means infrastructure costs as well must be considered...

https://www.nrel.gov/docs/fy19osti/74426.pdf

https://go-e.com/en/magazine/ev-charging-losses

...."To express the efficiency of a generator or power plant as a percentage, divide the equivalent Btu content of a kWh of electricity (3,412 Btu) by the heat rate. For example, if the heat rate is 10,500 Btu, the efficiency is 33%. If the heat rate is 7,500 Btu, the efficiency is 45%."...

https://www.eia.gov/tools/faqs/faq.php?id=107&t=3#:~:text=To%20express%20the%20efficiency%20of,%2C%20the%20efficiency%20is%2045%25.

..."The steel and chemical industries have joined calls to incorporate nuclear-made fuels in the EU’s renewable energy targets, saying all types of clean hydrogen will be needed to reach the bloc’s decarbonisation objectives."...

https://www.euractiv.com/section/energy-environment/news/industries-unite-behind-nuclear-made-hydrogen-in-addition-to-renewables/

"equals to up to 4300 tanker trucks of diesel fuel"

https://www.autoevolution.com/news/westinghouse-evinci-the-pint-sized-micro-reactor-designed-to-kick-diesel-to-the-curb-211614.html

..."PowerCell has announced an agreement to deliver hydrogen fuel cells to two Torghatten ferries in Norway. The order is valued at 19.2 million euros.

The significance is that these will be the largest marine hydrogen fuel cells produced up to this point, according to PowerCell, and the largest non-combustible fuel propulsion project to date in the global marine industry.

Rated at 6MW for each ferry, the fuel cells will predominantly be powered by green hydrogen, the company stated.

Delivery is slated for the fourth quarter 2024 and PowerCell will work with the systems developer and integrator SEAM for the installation and power delivery onboard.

Operating in Northern Norway, the ferries sail a four-hour crossing of the Vestfjorden between Lofoten and Bodø. Each has capacity for 599 passengers and 120 cars and are scheduled to start operating from October 2025."..

https://cruiseindustrynews.com/cruise-news/2023/03/largest-hydrogen-fuel-cells-for-marine-use/

https://fathom.world/teco-2030-wins-award-at-the-zeroemissionberth-innovation-competition/

...."For eons this has been a quiet, unremarkable place. Thousands of square miles of flat land covered in shrubs and red dirt. The sun is withering and the wind blows hard.

It is exactly those features that qualify this remote parcel of the Australian Outback for an imminent transformation. A consortium of energy companies led by BP plans to cover an expanse of land eight times as large as New York City with as many as 1,743 wind turbines, each nearly as tall as the Empire State Building, along with 10 million or so solar panels and more than a thousand miles of access roads to connect them all.

But none of the 26 gigawatts of energy the site expects to produce, equivalent to a third of what Australia’s grid currently requires, will go toward public use. Instead, it will be used to manufacture a novel kind of industrial fuel: green hydrogen.

This patch of desert, more than 100 miles from the nearest town, sits next to the biggest problem that green hydrogen could help solve: vast iron ore mines that are full of machines powered by immense amounts of dirty fossil fuels. Three of the world’s four biggest ore miners operate dozens of mines here.

Proponents hope green hydrogen will clean up not only mining but other industries by replacing fossil fuel use in steel making, shipping, cement and elsewhere."...

https://www.nytimes.com/2023/03/11/climate/green-hydrogen-energy.html