Is that $4000 figure for the 12V battery made out of 800Ah 1.2V cells, rated at "400Ah @ 5hr, 450Ah @ 20hr" shown on their web site for $3880? I've always wondered why more fixed site solar PV systems do not use iron nickel technology; it it is initial cost, I wonder what makes this technology so expensive.
Some day I want to look into the feasibility/advisability of a continuous automatic feed of distilled water to keep iron nickel batteries constantly topped off, and a hydrogen outgas capture mechanism (preferably passive) which takes that output of the iron nickel batteries and feeds it as the input into a hydrogen cell.
Some day I want to look into the feasibility/advisability of a continuous automatic feed of distilled water to keep iron nickel batteries constantly topped off, and a hydrogen outgas capture mechanism (preferably passive) which takes that output of the iron nickel batteries and feeds it as the input into a hydrogen cell.