Comment by sandworm101

I don't understant why LI-ion batteries are being used in such locations. They are definitely better in terms of energy density, but when size/weight isn't a concern, why are oldschool lead acid batteries not competitive? They are cheap, well-understood, and easily recyclable at end of life. Lithiums are more expensive and difficult to recycle. I understand why they are favored in vehicles, but for massive grid installs?