solar8484

It's one of the common problems reported in the Enphase forum.

That UPower is a rebranded PowerJack which is notorious for vastly overrated power capacity. The noisy waveform is due to poor...

It's best to connect Envoy in the same panel to avoid current and future potential Enphase comms issues and the expensive filter.

In general NEC does not officially specify specific UL standards in the codes. Instead the relevant standards are usually mentioned in...

UL9540 is required. Make sure the battery sticker clearly show the specific UL compliance. There appear to be battery vendors that...

Is this an off-grid system? If yes, you can probably pick an off-grid inverter and save money. If no (i.e. on-grid), it would be...

😂😂😂

A small off-grid inverter/charger or a power station with internal relay and AC input on a timer should work. I have tested such setup...

If I could find them, I would. I'll do some testing, when I get time. Actually, there's too much information to correct in this...

@timselectric , you had some measurements that challenged my claims. Can you link those here?

Can you also show the grid codes setting? The freq-watt (and volt-watt, etc.) curtail curve (including the frequency shift limits and...

My Settings: Nothing Special here. AC Coupling On Recharge SOC 95 - Doesn't seem to make any difference Battery Type - Custom...

Some new Information I did some testing today and was able to sort out several issues. About a week ago I changed my settings to use...

That seems odd. Perhaps there is another overall (i.e. not just for AC coupled charging) setting for max SOC charging limit? Slow ramp...

Doubtful unless you have actually tried it.

I believe it's because the gen side frequency shifts, And the load side does not.

Obviously you can't backfeed 200A PV breaker in 200A panel with 200A main breaker under 120% rule. So line-side or load-side tap makes...

What does the inverter do when AC coupling on the load output?

Has anyone tried AC coupling on the EG4 18k load output?

None of the IEEE 1547 2015 profiles support freq-watt. Try the IEEE 1547 default 2018 or one of the CA Rule 21 grid profiles to enable...