Good to know they don’t closed loop communicate, definitely preferably but not that big a deal in the end. So is the sol ark building a SOC or reading the battery SOC but it’s not able to use it for charging algorithm?
I probably have either what I’ve sold or advised 200 x 5 kWh blocks or some version. Their marketing is so good it’s hard to push people away.
No real issues.
They do seem to be confused on how to recalibrate their BMS which I really can’t figure out why they are. Weird.
But their tech support is quick and I can get through in seconds or minutes.
If they ever pull off their Outback power redux?
Jay
Jay,
I should mention I have a couple of customers with big EG4 LifePower battery banks (i.e. 120kWh+, 80kWh, etc) and Sol-Arks. The clients purchased the batteries directly, so I didn't have a choice. I will say that the systems are performing flawlessly, but forget about closed loop comms and SOC management. Everything is voltage based, which is suboptimal. But we're making it work. The Sol-Ark app still reports their version of SOC, which is handy for clients, but charge setpoints are done with voltage.
Signature Solar has provided pretty good support, but I didn't need much help.
I strongly suggest the Communication Hub to get SOC data from the battery BMSs. It's pretty handy and very easy to install.
With that said, I don't sell EG4 and don't necessarily recommend it, but to be fair, I haven't had any problems and the capacity claims seem legitimate. The value proposition can't be ignored.
Jason Szumlanski Florida Solar Design Group Thats all super helpful, appreciate the advice everyone.
I’ve not used the sol ark 15 and just wanted to make sure I wasn’t missing anything about battery options.
And specifically the ones that don’t seem to play well.
Jay
On Oct 9, 2024, at 2:56 PM, Jason Szumlanski via RE-wrenches < [email protected]> wrote:
HomeGrid works great with Sol-Ark. Closed loop comms reports battery SOC from BMS. Parallel stacks install easily. Customer support is competent and patient, in my experience.
The best part is the ability to easily add batteries. On Sunday I had a client with two stacks of five batteries each call me in a panic ahead of Hurricane Milton. He wanted more capacity. We had them in stock. On Monday my team added three batteries to each stack on the fly since we couldn't do a roof install that day due to rain. We had it done in about 2 hours, and that included moving the stacks due to a height conflict with a piece of equipment.
And now, 48 hours later, I'm looking out my home office window at the trees bent over. A tornado passed close by a few hours ago, debris pelting my windows, and a neighbor lost their lanai ceiling. Too close for comfort! But I have power, at least. :)
Wish us luck. Jason Szumlanski Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956 Florida Certified Electrical Contractor EC13013208
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