Watts Happening
I call it like I see it.
- Joined
- May 3, 2022
- Messages
- 819
Generally speaking I'm incredibly happy with my Sol-Ark and SOK batteries, I've just run into one issue and currently can't point the finger either direction so I'm at a bit of an impasse. Hoping to get some valuable feedback from other members with the same setup, or @HighTechLab (I've got a call in to your tech support, no rush, thought this may be easier). *edit* got a call back from Current Connected and certainly doesn't sound like it's a battery thing, but the question remains.
Basically I can't get my Sol-Ark to discharge the batteries below ~19-20% unless I disable closed loop communication. I was just on the phone with Sol-Ark going over it and essentially they ran out of ideas. If I take the inverter out of closed loop communication (unplug the comms wire) it will continue discharging, however with it plugged in the inverter begins to use grid power right at the 19-20% SOC. It won't let the batteries drop any lower.
While this is a pretty minor problem to have, I'd like to A) understand what the issue actually is and B) be able to utilize a bit more of the battery as we're often beginning to use a bit of grid power for only an hour or so in the mornings, a slightly lower depth of discharge would eliminate that as well as eliminate the batteries becoming full earlier and solar having nothing to power if I'm not paying attention. We'll likely have an interconnect agreement with the power company soon, but in the meantime it's just wasted power once the batteries are full.
Sol-Ark is going to talk to their engineers and the tech said, "maybe the BMS has some form of setting that calls for a charge when it hits that SOC". Generally I doubt the BMS is doing that, and I would think the inverter would ""say"" - "I understand you want me to charge you, but I can see that you're at 19% SOC and I'm not supposed to charge you until you hit 10%".
Any ideas as to even the right direction to look here? I tend to imagine it's something in the inverter, but before I waste any time I thought someone may have some insight. Thanks!
Basically I can't get my Sol-Ark to discharge the batteries below ~19-20% unless I disable closed loop communication. I was just on the phone with Sol-Ark going over it and essentially they ran out of ideas. If I take the inverter out of closed loop communication (unplug the comms wire) it will continue discharging, however with it plugged in the inverter begins to use grid power right at the 19-20% SOC. It won't let the batteries drop any lower.
While this is a pretty minor problem to have, I'd like to A) understand what the issue actually is and B) be able to utilize a bit more of the battery as we're often beginning to use a bit of grid power for only an hour or so in the mornings, a slightly lower depth of discharge would eliminate that as well as eliminate the batteries becoming full earlier and solar having nothing to power if I'm not paying attention. We'll likely have an interconnect agreement with the power company soon, but in the meantime it's just wasted power once the batteries are full.
Sol-Ark is going to talk to their engineers and the tech said, "maybe the BMS has some form of setting that calls for a charge when it hits that SOC". Generally I doubt the BMS is doing that, and I would think the inverter would ""say"" - "I understand you want me to charge you, but I can see that you're at 19% SOC and I'm not supposed to charge you until you hit 10%".
Any ideas as to even the right direction to look here? I tend to imagine it's something in the inverter, but before I waste any time I thought someone may have some insight. Thanks!
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