it was a jokeYou think because AC cycles it does not have a power flow direction?
it was a jokeYou think because AC cycles it does not have a power flow direction?
Not an issue in SBU mode.I ran my 120V critical loads sub panel in SUB mode (no batteries then) for about 8 months last year, and this was also when the Poco came out and changed my meter. I'm sure the tech saw my array in the yard while he changed out the meter, but he didn't ask any questions nor did I offer any info. Anyways I never got a visit from them then telling me I was back feeding.
If I am feeding this sub panel from my inverter (EG4 6500) only, should I be worried about any back feeding?
Since I added a second 5kwh battery in March, we have been pretty much off-grid (and SBU mode) since then. I still have the grid hooked into the inverter input, but really haven't used the grid since we added the second battery. So, I probably should just shut off the AC input breaker on the service pole panel..
Sounds like you're a fan though, so how can you say "fanless" ?Fanless!
Specs:Sounds like you're a fan though, so how can you say "fanless" ?
I'd like one of those devices that converts my 5kW into 600,000 Watts. Where can I buy one?By the time you convert 5 kw of 220v current up to 600,000 watts,
Someone cited a victron test above that I believe was LF. I agree, shouldn't matter, it's about the reaction time to a change in CT current. The electrons will always be faster then the microchip.Someone brought up HF inverters. We know (now) they can do backfeed by accident here and there. Do we know of any case of a LF doing it?
I suspect it doesn't matter LF or HF, but maybe it does.
It appears you caught my typo before I did.I'd like one of those devices that converts my 5kW into 600,000 Watts. Where can I buy one?
From what I remember it was a deliberate choice by Victron to control/slow the slew rate and maintain "stability" in case you were on the far end of a bunch of poles and wires or something like that.Victron tells us to set the ESS Grid Setpoint in watts to some wattage to help prevent feedback. They recommend like 50 or 100W.
I set mine to 500W. It won't matter, because the shedding of large inductive loads is larger than the offset.
In other words, it helps, but isn't sufficient to cover the feedback.
I don't know if Victron is better or worse compared to others, because the measurements would need to made independently to test that.
What it comes down to is the speed of the control loop inside the bidirectional inverter.
Victron is really conservative. Deye and Luxpower may be more aggressive, I don't know.
If you want absolutely no grid feedback, you've got to get rid of ESS on Victron.
My long term plan is full double conversion with chargeverters. Totally undetectable.
SUB mode the AIO will draw some from grid so the transfer switch is not open.But this is an AIO, why would it allow the relay to allow the inverter to parallel grid?
It is not doing zero export
Now one question here is, why does S to U or U to S transition cause a transient? Are these AIOs set up as momentary parallel and nobody ever checked the receipts until the POCOs instituted aggressive checking? (Which required an agreement if you are under PG&E).
I thought SUB/SBU meant it does NOT mix and does NOT do grid assist/peak shaving and does NOT have the necessary inverter control to achieve this. Just a transfer switch to lock out the grid vs the inverter
And when I say SUB/SBU I mean only one AC source can carry the load, with no blending. If the inverter cannot carry the load then the full grid can carry the load.
When grid charging occurs, the inverter is off and in bypass mode. All loads are powered by grid.Otherwise, how the heck is everyone getting away with parallel operation?
However since these are inverter/chargers, when charging from grid the inverter hardware is connected albeit configured in charging mode
I do not.Since you seem to speaking for the utility companies...
Not Evil.I think the problem we might be having with @Mark- is that he has a Lawful Good alignment.
Many of us here might have a Chaotic Good alignment, or at least fancy ourselves that way. He probably views us as Chaotic Evil though.. just thinking of ourselves.
Ok so just so I’m sure.Don't confuse SUB with SBU.
We aren't evil, just ignorant.Not Evil.
Don't confuse SUB with SBU.
When grid charging occurs, the inverter is off and in bypass mode. All loads are powered by grid.
Let me just defend @zanydroid from all these corrections and say I'm the one who was assuming SUB/SBU functioned similarly and started the conversion in that direction.Don't confuse SUB with SBU.
CorrectSUB is battery less operation. For whatever reason it allows user to select a mode where utility fills in for the flakiness of solar,
Also correctSBU is battery operation, it fills in flakiness of solar with battery. Only on inverter capacity overload or battery depletion will it transfer to grid.
Yes, they would have to be to get caught.But, were all these people that got caught really doing SUB and not SBU?
Yeshas this been verified?