4 ms·

I also have built my own offgrid sytems, but sodium is here now, and lithium is not competitive in any metric that counts in a static instalation especialy cost

I also have built my own offgrid sytems, but sodium is here now, and lithium is not competitive in any metric that counts in a static instalation especialy cost per kw/hr, and will very likely get insured to death as it will never be as safe. My next system upgrade will be aimed at home power/heat/hot water, shop, and car charging.Possibly with the car charging bieng a discreet system that works at a higher voltage and is all DC.

mittensc 8mo ago
I understood LiFePo4 is pretty safe and innert. Sodium I saw some reviews where it expands a lot during charging and long term safety is not as conclusive Why do you see sodium as an easier choice? The main fire risk with lifepo4 is the connectors, wires, bms and shut off being suitable for high amp. That would be a risk with anything if not built properly, even without batteries if you wire your house with wrong awg wires
- metalman 8mo ago
  lithium?, in a word, dendrites then if you can stay under long enough, the look into electrolights, this is all uni 101 stuff, but it is very clear that lithium is dead for static applications, and lower performance mobile other words, cost, supply chain strongly favor sodium over lithium
  - mittensc 8mo ago
    well, thanks, there goes the home battery idea :)
dzhiurgis 8mo ago
Sodium is not here yet at all. CATL barely started (if at all) volume production. They haven’t even published specs. Even when they ramp it up, it will be like 0.1% of total lfp output. So no, sodium is nowhere near.
- metalman 8mo ago
  you, blinked.they are selling sodium cars, and have giggawatt factorys online, with a bunch more coming online this year.
  - dzhiurgis 8mo ago
    Name 1
    - metalman 8mo ago
      previously, here....,blink, blink https://electrek.co/2026/02/05/first-sodium-ion-battery-ev-debuts-game-changer/ https://electrek.co/2026/02/05/first-sodium-ion-battery-ev-d... and in typical China fashion you can bet that actual implimentation is going to scale at a ferocious pace now that first iterations are proving competitive..... then we could, but wont, get into other significant developments in electric power, solar, battery, etc that will be entering the market, at scale, this year wink wink

mittensc 8mo ago

I understood LiFePo4 is pretty safe and innert. Sodium I saw some reviews where it expands a lot during charging and long term safety is not as conclusive Why do you see sodium as an easier choice? The main fire risk with lifepo4 is the connectors, wires, bms and shut off being suitable for high amp. That would be a risk with anything if not built properly, even without batteries if you wire your house with wrong awg wires

metalman 8mo ago
lithium?, in a word, dendrites then if you can stay under long enough, the look into electrolights, this is all uni 101 stuff, but it is very clear that lithium is dead for static applications, and lower performance mobile other words, cost, supply chain strongly favor sodium over lithium
- mittensc 8mo ago
  well, thanks, there goes the home battery idea :)

dzhiurgis 8mo ago

Sodium is not here yet at all. CATL barely started (if at all) volume production. They haven’t even published specs. Even when they ramp it up, it will be like 0.1% of total lfp output. So no, sodium is nowhere near.

metalman 8mo ago
you, blinked.they are selling sodium cars, and have giggawatt factorys online, with a bunch more coming online this year.
- dzhiurgis 8mo ago
  Name 1
  - metalman 8mo ago
    previously, here....,blink, blink https://electrek.co/2026/02/05/first-sodium-ion-battery-ev-debuts-game-changer/ https://electrek.co/2026/02/05/first-sodium-ion-battery-ev-d... and in typical China fashion you can bet that actual implimentation is going to scale at a ferocious pace now that first iterations are proving competitive..... then we could, but wont, get into other significant developments in electric power, solar, battery, etc that will be entering the market, at scale, this year wink wink