this post was submitted on 19 Jul 2026
122 points (94.9% liked)

Technology

87450 readers
3466 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots


founded 3 years ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[–] bitteroldcoot@piefed.social 36 points 1 month ago (3 children)

And where do they get the hydrogen???

Fossil fuel... But you really have to dig to find where they admit it.
Last time this came up it was buried in the documentation about how wind and solar don't provide enough.

[–] Tattorack@lemmy.world 4 points 1 month ago

This is exactly what I was thinking.

[–] phutatorius@lemmy.zip 1 points 3 weeks ago

It's clean at point of use only. Its overall supply chain is filthy.

[–] drmoose@lemmy.world -1 points 1 month ago (2 children)

In all fairness hydrogen is good battery store for green energy too.

[–] davidagain@lemmy.world 2 points 1 month ago

No. No it isn't. That's not how it's made and not how it's used. Its overwhelmingly made by the fossil fuel industry and calling it green in any sense is just greenwashing mostly the worst environmental problem generators the world knows.

[–] SaveTheTuaHawk@lemmy.ca 1 points 1 month ago (1 children)

it's awful. WTF. Takes huge energy to keep it cryogenically stored.

[–] drmoose@lemmy.world 2 points 1 month ago (1 children)

Where are you getting that it needs to be "cryogenically stored"? It's mostly stored as compressed gas.

The main problem with hydrogen is stores only 40% but with green energy surplus and 40% is better than 0% and hydrogen store systems are quite cheap and mature/simple so still relevant in highly developing areas like those of India.

It's still a good battery for these specific niches so I wouldn't discount this as some big oil propaganda

[–] phutatorius@lemmy.zip 1 points 3 weeks ago (1 children)

Containment of gaseous hydrogen is problematic because H2's molecular size is tiny, so it seeps through gaps that would contain other gases. So you need an especially robust container. It's also highly reactive.

No idea what your 40% comment was about, it's incomprehensible.

I wouldn’t discount this as some big oil propaganda

They're the most powerful force pushing hydrogen, so it'd be entirely reasonable to at least consider the possibility.

[–] drmoose@lemmy.world 1 points 3 weeks ago

Only 40% of energy is stored and 60% is wasted in conversation.

Yes everyone's aware hydrogen is small, no one's contesting this but you still don't need freeze store just as you said proper containers. The issue you mostly hear of hydrogen leaking is from dispensaries like hydrogen gas stations not long term static containers.