world’s first 100 MWh-class battery energy storage facility using 628 Ah ultra-large battery cells has entered operation.
World's first 628Ah grid-scale battery enters operation
https://www.ess-news.com/2026/02/12/worlds-first-628ah-grid-scale-battery-enters-operation/
15 Comments
WhiteOakBayou@lemmy.world · 10 pts · 185d
628 Ah at what voltage?
huquad@lemmy.ml · 6 pts · 185d
I hate how battery systems are rated. They never give the full picture. "This is a MW system" cool, but how much storage?
moonshadow@slrpnk.net · 8 pts · 185d
It's in MWh, what more do you want?
huquad@lemmy.ml · 2 pts · 184d
Many articles leave that out. The headline for instance only lists Ah
hanrahan@piefed.social · 0 pts · 183d
But isn't AHr a better measure for battery storage ?
huquad@lemmy.ml · 1 pts · 183d
No, you're still missing voltage to give you the total energy storage, or Watt-hour (wh). For a cell of known chemistry, the voltage is implied. For example, lithium ion's nominal voltage is ~3.7V. However, the term "battery" is ambiguous. Could be one cell, could be many strapped together to form your "battery". See 12V lead acid batteries. Therefore, Ah is only half the answer.
WhiteOakBayou@lemmy.world · 3 pts · 185d
Yeah, I really want to be impressed and am sure I will be. Just give me the specs
moonshadow@slrpnk.net · 4 pts · 185d
v*a=w
so ? * 628 = 1,000,000
you do the math part, I'm lazy
pntha@lemmy.world · 3 pts · 185d
1592.36 V
floquant@lemmy.dbzer0.com · 1 pts · 184d
1592.36 Vh
WhiteOakBayou@lemmy.world · 2 pts · 185d
Me too, that's why I want it in the article.
BilboBargains@lemmy.world · 2 pts · 185d
Ah is not a good unit for explaining capacity, it's better to use Joules. Ah is better suited to throughput because it informs the maximal load that can be applied.
wewbull@feddit.uk · 3 pts · 184d
Agreed Ah are bad.
MWh are equivalent to J. Specifically 1MWh is 3.6GJ
Trudge@piefed.social · 1 pts · 185d
NotMyOldRedditName@lemmy.world · 1 pts · 185d
Big cells aren't necessarily good... if something goes wrong that's a lot of energy being impacted. If a cell goes bad, that's a more expensive repair. I'm sure there's other issues as well.
It can save on initial costs though in various ways as well.
There's going to be some equilibrium where size, cost, safety all converge
Trudge@piefed.social · 10 pts · 185d
BambiDiego@lemmy.zip · 1 pts · 185d
Those look like Retro Encabulators