[jacquesm]

Very nice. I have my eyes on Lithium-Titanate cells for my house, I can't wait until they go down in price enough. Weight and energy density are not an issue, but safety is and those cells are very good in that sense.

https://en.wikipedia.org/wiki/Lithium-titanate_battery

[turtlebits]

LFP is safe and is under $100/kwH.