Oh and I should have mentioned Humless - they have a CEC approved server
rack battery that they are now integrating UL 9540 on their own
re-branded Inverter. Cheaper than Storz Power but the inverter is
probably a gro-watt equivalent. So I'm sticking with Storz Power now
so I can utilize UL 9540 on Sol-Arks.
Jeff Clearwater <mailto:[email protected]>
December 23, 2021 at 11:06 AM
Hi Chris,
My only experience thus far is ordering and getting tech support on a
biggish system's worth. 3 Sol Arks on 16Storzpower 5.12 KW batteries.
In working with Everett and his staff I'm very impressed. They are
the first to get UL 9540 on a server rack battery with the Sol-Ark.
They flash the Sol-Ark to synchronize with their batts. I really
like server rack batteries (StorzPower, Signature Solar, Jakiper,
etc.) The 5 KWH increments are nice - easy to rack. Great price -
quality on tear-downs and experience in the field is thus far great.
Same pouch cells many of the big names are using - proven BMSs.
The only limitation at this point is comm limitations. Everett says
Sol-Arks are presently limited to reading 7 of those type batteries
per inverter. The batteries have a 4 place dip switch arrangement for
ID and thus limited to 16 IDs (14 or 15 in practice depending on the
battery as the Inverter uses a channel).
I'm solving that on one project I'm doing with Signature Solar EG4s
(open loop on Sunny Islands) by simply having a dedicated laptop
running the battery BMS software monitoring app on a PC. That way I
can see SOC of every battery (and voltage of every cell and do the
setting feedback loop in my brain rather than closed loop - pretty
easy to see what's going on that way by tracking both what ennexOS is
telling me about the Sunny Islands and the BMS's are saying. But
that's for open loop in the Bahamas.
In CA or anyplace else that cares about UL 9540 (which will soon be
everywhere perhaps) the integrated closed loop is the way to go so
loving that Storz Power stepped up to offer that.
I'll let you know once I get them installed and up and running.
Best,
Jeff
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Chris Sparadeo <mailto:[email protected]>
December 23, 2021 at 7:18 AM
Hi all,
Just wondering if anyone out there has had experience with Storz Power
batteries? Specifically in applications with closed loop comms and Sol
Ark.
Kindly,
Chris
--
Chris Sparadeo
C_802-369-4458
H_802-728-3059
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