this post was submitted on 23 Aug 2023
168 points (89.6% liked)
Green Energy
2198 readers
378 users here now
Everything about energy production and storage.
Related communities:
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Sodium ion is commercial now and in the scale-up phase. It's usable for anything a lithium battery was usable for in 2015, but with some advantages (cheaper, longer lasting, shippable fully discharged, less fire-prone). Other grid scale technologies (ZnBr, Fe, NaS, V, Na-flow) are in the demo stage.
In either case the current scale of the lithium battery industry exceeds the scale needed for diurnal grid storage significantly. Mining a kg of lithium is both lower environmental impact and larger in scale of application (in terms of energy per year delivered by the associated system) than mining a kg of Uranium.
You don't need to remember me the downsides of mining lithium or uranium.
If the numbers are true, my country has the richest reserves of lithium in Europe and one of the richest in the entire world. But the idea of strip minning it does not appeal to anyone and we have a village actively campaigning to not have a mine set up there, regardless the number of jobs ot could bring there.
Regarding uranium, I actually live in an area where it was once mined the land bears the scars. Nobody really remembers how much rock was cut, crushed and hauled away by train in the day.
But this always brings this to mind: why are we not investing in technology to harvest lithium from salt water? I remember hearing it was a viable option growing up.
The answer to your last is the same as why we didn't just move a lot of industry to wind in the 40s and relax sometimes or solar-thermal in the late 19th century. Those with power want more for less and in a form they can monopolise.
Demonizing grid storage because of the lithium is a bit of a misdirection though, >90% of it goes to those cars which could easily be replaced with rail/human powered/light vehicles at minor or no inconvenience.