This gentleman has completed two successful Kickstarter releases before & and his next batch has just been offered…
I’m sharing them here for your thoughts or comments (I'm pledging for a couple of the BMS modules).
His latest project introduces a Power Point Tracking Thermal Controller for thermal mass storage, logic control of a matrix of fixed resistance loads to best match whatever the PV output happens to be at any given time. Oh yeah, 450 Amps worth of solar into resistance heat! --- "DMPPT450
as the name implies will support a max of 450A STC current so a total of 14kW of PV panels can be connected. Panels need to be the 60 cell type." -- whoa
It's kind of dense reading his info sheets, a marketing presentation with light technical stuff...
Anyhow, I’ve been waiting for half of forever for his latest solar charger-BMS modules to become available with Wi-Fi & phone aps & logging & alarms etc. built in that are just pure neatness, he is offering them in 40A and 120A flavors this time.
I see a few limitations on his charger/SBMS stuff, one is a mandatory 6~ meter total length on input leads of 16mm² copper conductor to eliminate possibility of LiFePo inrush surge burning out his circuit, so having a 48V system to reduce losses would be best. So yes, he is warning that cable length is a normal required resistance, do not heavy up on those cables. Also he wants no fuse or circuit breaker before his device to keep chances of spike/surge at a minimum which is different approach too if* I’ve read his notes correctly.https://www.kickstarter.com/projects/electrodacus/digital-mppt-and-solar-bms-for-a-net-zero-energy-h