c3poh

Will follow up with installer as to how the load is split. At this stage I know that the entire house is powered (incl heat pump) even when the utility is down (load shedding). One other question. In advanced settings is “Equipment mode : slave” correct. Seems odd since there is only 1 inverter.

Oh, and my inverter is right next to my db board. Unless there is a lot of loose wiring I’m assuming that the CT coil is of normal length (where can I read up about what this is)? Quite possible that it’s backwards. Will ask the installer to confirm on Monday

Greenfields - thanks so much for the advice. I’ve made the following changes: 1. Turned off the timer 2. Set the trickle to 0 3. Set the mode to “zero export limit to load” I’ll post an update when during the day one we get some sun on the panels. Regarding the trickle feed (just getting my head around this). If I understand correctly when set (to say 20) this should ensure a minimum feed FROM the grid of 20w at all times. Interesting that in I’ve been seeing a feed of 20w TO the grid at all times. For the record, these were my timer settings. It’s off now.

Hi I've had a Sunsynk 8kW inverter with 2 x 5kWh batteries with 14 x 405 W panels for about 6 months now. Small house, heat pump, entire load covered by inverter. It's been working just as expected, load is prioritised during the day, batteries charge and then discharge at night etc. On sunny days, there is negligible draw from utility (Eskom). At this point no feedback into the grid (normal prepaid meter). A typical day looks like the first image posted and is entirely expected, viz, battery starts off low, sun comes up and PV picks up, covering load and charging battery, batteries get full and then PV drops off to cover load. Sun goes down and batteries cover the base load (+- 270W with spikes when heat pump runs). See first image (before.jpeg) This week I got an AMI meter installed (City of Cape Town). Apart from removing the prepaid meter, COCT didn't touch the PV setup. The PV installer then logged on and configured the system remotely to push back to the grid using the following system settings (see second image: AMI-settings.png) Work mode: Limited to Home Solar export: [enabled] Use timer [enabled] - this setting didn't change Inverter Power Limiter: 5000 Energy pattern: Priority Load Grid Trickle Feed: 20 Since the AMI meter installation and changes to the settings, I've noticed some strange behaviour. The third image (today.jpeg) and fourth (flow-consumption.jpeg is the profile for today which illustrates this behaviour. The flow screenshot was taken today at 20:46 - well after sunset. Here's what I'm seeing The battery doesn't cover the load at night and remains almost fully charged Throughout the day and night there is a consistent 20W being fed to the grid At night the no load on the house is present any longer (0W). I would expect to see at least the base load (370W) During the day, the batteries charge first back to 100% - this doesn't take long as they have hardly discharged, and then the load line almost mirrors the PV line throughput the day. I can guarantee you that this is not the real load that the house is drawing. Its almost as if the load line has replaced the grid line, but on the other side of the graph (from digging into examples, I'm expecting the grid line to display negative as the power is fed back). Does anyone have any idea what is going on here?

Thanks folks. Much appreciated

Hi Just taken this battery out of a radio controlled car. Appearance of 2 AA sized batteries encased in plastic sleeve. The label reads 14500/500 mAh 3.7 V How do I interpret that mAh value? Will try to upload an image if I can figure out how.