Comment on The Sodium-Ion Battery Revolution Has Started
Krelis_@sh.itjust.works 3 weeks ago3.6 MW even. :)
3.6 kW is what a 50cc internal combustion engine typically produces
Comment on The Sodium-Ion Battery Revolution Has Started
Krelis_@sh.itjust.works 3 weeks ago3.6 MW even. :)
3.6 kW is what a 50cc internal combustion engine typically produces
davidagain@lemmy.world 3 weeks ago
Here’s my working. There are about 31.56 million seconds in a year, and so
30 GWh/year ~ 31.56 GWh/year = 31x10^9 Wh / year
= 31x10^9 Wh / 31x10^6 s = 10^3 Wh/s = 1 kWh / s = 3600 kWs / s = 3.6 kw
I used the duckduckgo autocalculator just now, and 30/31.56*3.6 is about 3.4, so it’s much closer to 3.4kW.
(It’s not power output, it’s manufactured storage output. I think of it as like a factory that produces 3.4 litre capacity jugs per second, but they’re not jugs, they’re actually batteries.)
If these were sold at lithium ion prices, that would net them about 120*3.4 USD/s, or roughly 1.5 million USD/s.
Or to calculate another way, they could make a 120kWh battery, (which would give a family car a range in the region of 450 miles), every two minutes.
Krelis_@sh.itjust.works 3 weeks ago
I appreciate the work :)
1 kWh/s (with you there) = 3600 kWs / s = kJ/s = kW!
= 3600000 J/s (=W) = 3.6 MJ/s (=MW)
davidagain@lemmy.world 3 weeks ago
Doh! You’re right of course!