I'm curious if anyone here has tried, or installed, any saltwater technology batteries that have appeared. This is the one I've seen and read about a bit:
http://www.aquionenergy.com/energy-storage-technologyStill pretty expensive even with the consideration of potentially deeper DOD. A 2.4 kWh stack is about $1,200; a pre-wired "pallet" (24.8 kWh) is about $16k.
Comparing it to our L16's, if we assume 50% DOD on the lead-acids, we've got about 20 kWh net usable; at today's costs of about $5,500. If we could go to near 100% DOD with these things, it'd take about 8-stacks, or roughly $10k. Not saying you want to go that deep, but even at 80% DOD you'd have nearly twice the cycles (if the longevity is real).
I have no idea how robust or proven the technology is. Would like to hear from anyone who has experience with them, or an opinion. ~ks