- Yes.
- Hydrogen as a fuel is stupid and impractical, it's dead because the thermodynamics suck and there's no real benefit (even energy density isn't far off the better batteries nowadays). Hydrogen is the new carbon capture, I.e. dead-end technology that people pull out to get headlines and fake some green credentials.
- If you want to store heat, you can just store it in a bunch of rocks wrapped in insulation. It needs to scale up a bit, because the cube-square law makes it cheaper and longer lasting the bigger it is, but at a 20 metre wide cylinder with 1 metre thick insulation, you can use summer solar to cover the entire winter's heating needs for a city district with 1950s technology and no moving parts besides the fans in the air ducts (and a normal district heating system).
this post was submitted on 28 Oct 2026
1024 points (98.2% liked)
Technology
89137 readers
4414 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related news or articles.
- Be excellent to each other!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- 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.
- Check for duplicates before posting, duplicates may be removed
- 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
view the rest of the comments