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I have the batteries selling at 1-2KW. Setting the voltage at float voltage, the system sells power while the battery stays at the float voltage (100% SOC) maintained by the DC coupled CC as long as there is solar gain. It was ammatter of figuring out the TOU settings. Only negative is...

I got the CC to sell 1500 watts. Set float voltage to the same as the inverter and put the inverter in time of use mode. When Vbatt < Vfloat, CC kicked in and a lot more power was sold than than from the arrays connected to the inverter. Still a few problems to solve yet.

understood. what I was referring to is that the CC never came off float mode provide more power. I've gone through the CC settings but haven't figured it out yet. That's all I was indicating.

The CC and the sol-ark are connected to the battery. The sol-ark registers about a 170w draw from the batteries while the battery is maintaining just 0.1v or 0.2v above float voltage. This does not happen without the CC.

I would need 6 units and a fair amount of rewiring an adding 2 more breakers in my combiner box

The array has 12 panels, wired as 4 groups of 3 panels. See attached for panel specs.

its an off-grid inverter. need GT inverter. I've looked all the inverters on Signaturesolar. Haven't found any suitable including size limitations. Thanks

Sol-ark said the simplest solution would be to add a 2nd 12k unit in parallel. A bit overkill methinks for a 2500 w array along with I have more room for a large unit like that and I can’t afford it. I’ll keep looking for a GT split-phase inverter for AC coupling with the Sol-ark inverter

I have a Sol-Ark 12K system. Because of a Voc mismatch between one array and my other 3, I am using an Outback FM60-150 CC to DC coupled the array to the the inverter. Setting the Time-of-Day to daytime hours, the discharge voltage is set to just below float level. This way only power from...

I seem to remember seeing a setting for preference between battery and array but Either I’m misremembering or I can’t find it

That should have been no more room

Recently I did a battery (AGM) test by discharging the battery bank 15min. The test required measuring Voc after the discharge period. I asked support how to disconnect the batteries safely. The answer was switch no battery in spite of what the manual stated. But when I did that, all power to...

I have this manual and tried it and set the rebulk to the current float voltage. Then tried to reduce the float voltage but the CC wouldn't let me. Reset the bulk voltage back to default

Same issue, support is slow to respond. As far as I know, SOC is measured as Voc, with no current flow, 4-24 hrs after discharge.

I think I found a hybrid inverter that could work as an AC input (https://signaturesolar.com/growatt-48v-6kw-250vdc-split-phase-off-grid-inverter/). Will this work? Any info about this inverter? Would it work with this unit connected to the sol-ark and the battery? thanks

My other option is running DC to an inverter/CC next to the Sol-Ark. All wiring from array and batteries is right there. Have to see how much I can spend and how much work I want to do. My array is tall and rewiring on a ladder will be a pain (from past experience).

I’m looking for an inverter/charger that operates with a max array voltage of 110vdc. Other requirements are: 2500w output, 240vac for 48vdc battery voltage. Preferably less than 20” in length. Thanks

The sol-ark is “hard wired” to use array power first then battery then grid.

One issue is the max input voltage. Each string of 3 panels has Voc=~100vdc. The enphase microinverter has a max voltage of 60 v. Reducing the string to 2 panel would still have an open circuit voltage that is greater than 60 v. Even considering the peak output voltage of 28.5 v per panel...

The panels on the array are all good. To answer @n2aws, the CC is connected to the DC side at the batteries. It is delivering power from there through the S-A inverter to the grid and the load in addition to the power generated by the 3 arrays connected to the S-A inverter. The problem is...

Dunno. This was just a test today. There wasn’t much sun for one thing so 2500 watts output from the CC was pretty good for an aging array. When I stopped the test, the batts recharged from the grid rather than from than from the arrays. But making progress. As for estimates,due to poor sun...

I’d dump the FM60 in favor of an inverter charger. All necessary connections are in place.

annual critical loads 16560kwh Annual production. 11616kwh

my new Sol-Ark 12k inverter is running just fine with the negative side grounded!

Without the 4th array, I’m losing 25% production (2900 kwh)

the microinverter is too expensive as far as I can tell. Because the FM60 has wiring in place for the array and the batteries, it makes more sense to me to replace it with a new inverter/charge controller at much lower cost,

can’t use micro inverters. The combiner boxes have the negative side grounded and can’t deliver split-phase power for AC coupling. Only other solution is a small inverter to replace the CC. Space is limited. i have an all electric house so additional power is necessary.

I mispoke. Neither of the PV leads at the array are not grounded else the gfci eill not not work. Sorry for the confusion.

150’ through a tight conduit? cost would be high.