Author Topic: Lithium Solar-BMS & Power Point Tracking Thermal Controller Kickstarter...  (Read 345 times)

0 Members and 1 Guest are viewing this topic.

Offline dang

  • Full Member
  • ***
  • Posts: 79
  • Karma: +3/-3
 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  :o 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.
"It may be that your sole purpose in life is to serve as a warning to others" - Anonymous

Offline bj

  • Hero Member
  • *****
  • Posts: 650
  • Karma: +19/-0
  • Lamont, Alberta, Canada
   Most interesting Dan.  Bookmarked so I can keep track.
  Thanks for the heads-up.
"Even a blind squirrel will find an acorn once in a while"