Interesting. Looks like more stuff to break in the larger battery module system, but 30kWh for $15k compares very well to trying to get that capacity using Rolls FLA batteries. Any kind of required and propriety HW, like the battery sensing module makes me wary, but wasn't clear from reading the operators guide whether that was required for a smaller amount of parallel battery 'stacks' or not though. 30kWh would be nice, but overkill for our needs and the 48v system would require some redesign of my system to work too. A 30kWh system with 6000 cycles @ 50% DOD would be the last set of batts I'd have to buy in my lifetime though, we only use about 3-5kWh per day.
Guess I'm in wait&see mode on this, and other, new batt technology. One requirement for me would be redundancy/fault tolerance, at least the ability to reconfigure the system around failed components like a single bad cell in their stack of 8, for times it wouldn't be possible to contact them and wait for a warranty replacement to arrive.
Everything marked, everything 'membered. You wait, you'll see.