25 Matching Annotations
  1. Jul 2025
  2. Jun 2025
    1. Natural hydrogen explorer Hyterra reported a 96.1% hydrogen concentration in mud gas samples from its first US well, Sue Duroche-3, in Kansas, one of the highest recorded levels of natural hydrogen. The find confirms historic readings nearby, ahead of a second well spud planned for mid-May. If validated, it could accelerate interest in geologic hydrogen as a scalable, low-emissions energy source, an alternative to electrolysis-based hydrogen production.

      how big is this resource? it's really had to tell if this is "good"

  3. Mar 2025
    1. The kingdom has also made a push into “green hydrogen.” In May Saudi Arabia signed a deal to build a green hydrogen production facility with investment of $8.4bn, as well as an additional $6.7bn for the plant’s engineering, procurement and construction.
  4. Jan 2025
  5. Dec 2024
    1. Einsatz fiir den Ausbau von und die An-bindung an internationale Wasserstoffin-frastruktur bezienhungsweise -produktione Einsatz fiir die Bereitstellung nationalerfinanzieller Mittel fur Wasserstoff-Pilot-projekte entlang der gesamten Wert-schdpfungskette

      Dazu passt, dass man an den Wassertoff-Hype anschließt und damit ein weiteres Argument der Klimaverzögerer übernimmt. Es ist ausdrücklich nicht von „grünem Wasserstoff“ die Rede.

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    1. Konrad Kramar im Kurier zur zerplatzenden Blase „Grüner Wasserstoff“. Von den 10 Mio. Tonnen jährlich, die die EU-Kommission bis 2030 geplant hat, sind erst 7% erreicht, von den geplanten Leitungen erst 3% im Bau. Im Vergleich zu Wärmepumpen bei Heizungen und Batterien bei LKWs ist Wasserstoff unwirtschaftlich. Die Wasserstoff-Lobbies promoten tatsächlich grauen, mit Erdgas produzierten Wasserstoff, der auf absehbare Zeit als einziger konkurrenzfähig ist, aber die fossilen Emissionen nicht verringert [via Sabine Jungwirth auf Facebook]. https://kurier.at/wirtschaft/eu-wasserstoff-klimawandel-solarzellen-pipeline-hydrogen-bank/402990372

      Screenshot: https://www.facebook.com/photo/?fbid=10227863164746893&set=a.2637414336971

  6. Oct 2024
    1. ECL launched its first modular hydrogen data center back in May, with a small deployment at its site in Mountain View, California. Each module supports 1MW, and can cool up to 75kW per rack.For the TerraSite, ECL said that it has three pipelines of hydrogen that will feed the facility, with an energy cost of 0.08-0.12/kWh.

      Presumably these are the costs of non-green hydrogen, as it's significantly more expensive.

      More context here: https://rtl.chrisadams.me.uk/2024/01/hydrogen-datacentres-is-this-legit/

    1. For others, such as hydrogen (H), the picture looks different. The production of H is based on cryogenic processing, which means that the temperature of the gas stream needs to drop to approximately −85°C. 76 This consumes considerable energy and thus emits high indirect GHG emissions in production

      Could you not use electrolysis? Ah, the key thing here is thr energy to cool it down

  7. Aug 2024
  8. Jul 2024
  9. Jun 2024
  10. Feb 2024
  11. Oct 2023
    1. SOFCs and PEM fuel cells differ from one another in their construction, materials, and operation. In a high-level view, the primary differences are the electrolyte materials (where the hydrogen and oxygen react) and operating temperatures. SOFCs operate at high temperatures, requiring longer start-up times and as a result, only being suitable for continuous power supply. PEMs, by contrast, operate at lower temperatures and are capable of fast-start or continuous operation, but are a more expensive option.

      Oh wow, so there are two kinds of fuel cells, and the expensive one is the fast ramp up one

  12. Jul 2023
    1. First and foremost, where will a largely desert country source the water for electrolysis? Secondly, will Namibia export only hydrogen, ammonia, or some of the industrial products made with the green inputs? It would be advantageous for Namibia to develop a heavy-chemicals and iron-smelting industry. But from Germany’s point of view, that might well defeat the object, which is precisely to provide affordable green energy with which to keep industrial jobs in Europe.

      This is an interesting point - shipping the gas vs shipping the higher value products enabled by the gas

  13. Jun 2023
    1. Reportage über Produktion und Nutzung von grünem Wasserstoff in Spanien. Eines der Probleme – abgesehen von den hohen Produktionskosten – ist der Wassermangel im Landesinneren. Das ohnehin knappe Wasser wird im Moment für die Landwirtschaft gebraucht, so dass es fraglich ist, wann Spanien grünen Wasserstoff in andere europäische Länder exportieren kann.

      https://www.tagesschau.de/ausland/europa/wasserstoff-spanien-100.html

  14. May 2023
    1. Die EU ist weit davon entfernt die Ziele für die Produktion von Grünem Wasserstoff zu erreichen, die sie sich selbst gesetzt hat. Auf dem Green Hydrogen Summit in Rotterdam gingen Branchenvertreter davon aus, dass selbst die Hälfte der geplanten 10 Millionen Tonnen bis 2030 sehr ehrgeizig sind. Das EU-Ziel ergibt sich aus den Annahmen über den Bedarf der Stahl- und Düngerindustrie. https://www.ft.com/content/2c700128-9980-476e-904c-d0b78dd6b56a

  15. Apr 2023
  16. Mar 2023
  17. Sep 2022
    1. On a volume basis, hydrogen is one of the least energy dense fuels. One liter of hydrogen contains only 25% of the energy of one liter of gasoline and only 20% of the energy of one liter of diesel fuel.

      It's the vapors of Gasoline and Diesel Fuel that burn, so to measure fuel density based on volume of the liquid for fuels that burn in vapor form - but not doing the same for hydrogen is simply dishonest.

      They all burn as a vapor and store and transport well as a liquid. If you compare them all based on the gas volume when they are burned, Hydrogen is still by far the most energy dense.

      It's the capacity to store hydrogen that makes the other fuels fuel at all, so it's hard to improve on 100% hydrogen for doing that.

  18. Mar 2021
  19. Aug 2020