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World's first 628Ah grid-scale battery enters operation (www.ess-news.com)

submitted 6 days ago by schizoidman@lemmy.zip to c/energy@slrpnk.net

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world’s first 100 MWh-class battery energy storage facility using 628 Ah ultra-large battery cells has entered operation.

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[–] huquad@lemmy.ml 6 points 6 days ago (2 children)

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 7 points 6 days ago (1 children)

It's in MWh, what more do you want?

[–] huquad@lemmy.ml 2 points 6 days ago (1 children)

Many articles leave that out. The headline for instance only lists Ah

[–] hanrahan@piefed.social 0 points 5 days ago (1 children)

But isn't AHr a better measure for battery storage ?

[–] huquad@lemmy.ml 1 points 5 days ago

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 points 6 days ago

Yeah, I really want to be impressed and am sure I will be. Just give me the specs