this post was submitted on 17 Jan 2025
64 points (68.0% liked)

Technology

60605 readers
4737 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 content.
  3. Be excellent to each another!
  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, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 2 years ago
MODERATORS
 

Yeah, I think massive chemical batteries for storing excess electricity to facilitate a contrived green energy market is a bad idea.

you are viewing a single comment's thread
view the rest of the comments
[–] A_A 11 points 2 days ago (4 children)

... 3000-megawatt Moss Landing energy storage ...

"megawatt" is not a quantity of energy.
Also, are those battery fires more frequent // important than petrol ones ?

[–] [email protected] 3 points 2 days ago* (last edited 1 day ago) (1 children)

Also, are those battery fires more frequent // important than petrol ones ?

Petrol fires use oxygen from the air. They can be extinguished by removing the oxygen: covering it in firefighting foam, or displacing it with CO2, for example.

Batteries contain both their fuel and their oxidizer together in one case. You can't remove the oxygen. So long as they are hot enough, they keep burning, even if they are underwater. The only way to extinguish them is to remove the heat. Which is practically impossible.

[–] A_A 1 points 1 day ago

Good point.
And so, i would expect large accidents in tunnels in next decades that will prompt laws & regulation to restrict electric vehicles from (access to) tunnels ...

[–] [email protected] 8 points 2 days ago

No. And the petrol fires are many and ongoing in everyone's cars. Also large petrol fires are not always reported in the US. I can think of one specific instance that tho' a major fire, producing a wall of smoke, yet I could only find one news report of it's existence.

[–] [email protected] 1 points 2 days ago (1 children)

How is a Megawatt not a measure of energy?

[–] Valmond 8 points 2 days ago (1 children)

It's power, not energy.

MegaWattHours is energy for example.

[–] [email protected] -4 points 2 days ago (2 children)

And power is a measure of energy over time.

[–] [email protected] 10 points 2 days ago (1 children)

Yes, and? Measuring an energy storage facility in terms of power is not a good idea.

If you asked someone how big a water tank was and they said "five liters per second", would that be useful?

[–] [email protected] 3 points 2 days ago (1 children)

It would be very useful if you were asking the right question. The storage facility from the article has a 750 MW storage capacity (energy) which it can deliver at a max output (power) of 3000 MW/hr Power plant and storage facility capacities are measured in MW since what they are intended to do is supply power at a steady rate. Who cares if you can store a billion TW of power if you can only output it at 5mW/h. It does no good if you can't get it out. Supply is what we really care about here.

[–] [email protected] 6 points 2 days ago (1 children)

True to your name, you’re using those backwards. You’re thinking of MW hours per hour, or just MW. Put differently, MW is a rate, MWh is a quantity.

[–] Valmond 2 points 2 days ago (1 children)
[–] [email protected] 3 points 1 day ago

This guy gets it.

[–] [email protected] -4 points 2 days ago* (last edited 2 days ago) (1 children)

We shouldn't have either.

Per the AP, "There were fires at the Vistra plant in 2021 and 2022".

[–] A_A 1 points 2 days ago

Agreed, yet, you know that, since this is a new technology in development, it is more subject to accidents. What's more is that media are more inclined to report any even small accidents about it. So, finally, information and news here are not necessarily representative of the whole reality.

Thanks anyway for this striking breaking news i didn't know about 😌