The Battery Thread (Solar / Inverter)

[semaphore]

There is some inverter draw in that 150-200... but not sure about the 99%... maybe that's a Hubble oddity? @SnYpEr any thoughts

Here's mine for comparison

View attachment 1211172

The batteries are being balanced.

 

[maxxis]

The batteries are being balanced.

Thanks so much. That’s what I thought.

Ill tick all the boxes in the morning and report back.

 

[maxxis]

So I have the same meter.

I have zero export ticked and solar export ticked.

Limit to load is unticked.

What this does is that if the batteries are full it will export excess solar to the grid and your meter will spin backwards.

My understanding is that limit to load only lets the batteries and pv power the load side of the inverter aka essential loads.

 

[AchmatK]

My understanding is that limit to load only lets the batteries and pv power the load side of the inverter aka essential loads.

Zero export should be ticked if you don't want to export to the grid.

Limit to load limits to essential loads only if its ticked.

Export solar if ticked will only export solar after battery is full and loads are met. Only excess solar will be exported.

 

[wingnut771]

Zero export should be ticked if you don't want to export to the grid.

Limit to load limits to essential loads only if its ticked.

Export solar if ticked will only export solar after battery is full and loads are met. Only excess solar will be exported.

How do you make it so your meter doesn't read negative from the previous month?

 

[maxxis]

Zero export should be ticked if you don't want to export to the grid.

Limit to load limits to essential loads only if its ticked.

Export solar if ticked will only export solar after battery is full and loads are met. Only excess solar will be exported.

“Zero export” and “Export Solar” contradicts itself then?

So “zero export” can be ticked but you can still export if “export solar” is ticket?

 

[maxxis]

Shouldn’t I be seeing AC load? I was pulling 3kwh according to efergy. Geyser was on.

 

[Mzezman]

Shouldn’t I be seeing AC load? I was pulling 3kwh according to efergy. Geyser was on.

View attachment 1211314

Where was your CT Coil installed?

 

[maxxis]

Where was your CT Coil installed?

Right on the main feed coming into the house. Less than 20m from the inverter (including the ct coil wire)

Was reading correctly last night.

 

[Mzezman]

Right on the main feed coming into the house. Less than 20m from the inverter (including the ct coil wire)

Was reading correctly last night.

Aaah ok, at least yours was installed correctly. If you show the flowchart how does that look with the geyser on?

 

[maxxis]

Aaah ok, at least yours was installed correctly. If you show the flowchart how does that look with the geyser on?

Can the CT be installed the wrong way round?

 

[maxxis]

Running like this

 

[AchmatK]

How do you make it so your meter doesn't read negative from the previous month?

I check my net usage on the inverter to make sure it's not negative. I enter my own meter reading online as they cannot read my meter as its on my property and the meter readers do not have access to it.

“Zero export” and “Export Solar” contradicts itself then?

So “zero export” can be ticked but you can still export if “export solar” is ticket?

Correct. You can choose to only export after batteries are full instead of continuously

Shouldn’t I be seeing AC load? I was pulling 3kwh according to efergy. Geyser was on.

View attachment 1211314

Take a pic of your flow chart when the geyser is on.

Can the CT be installed the wrong way round?

Yes it can. But need to confirm on your flow chart.

 

[maxxis]

Inverter sounds like its under load. Hums?



AC load is back


Geyser on for both

 

[maxxis]

Geyser off again

 

[AchmatK]

Inverter sounds like its under load. Hums?
View attachment 1211330


AC load is back
View attachment 1211332

Geyser on for both

Are you sure the geyser actually element is on and heating. If the geyser is at the set temp the element turns off.

I take you are not using the timer as the solar and battery should be supplying these loads and not taking from the grid if you want to limit grid usage.

 

[Koosvanwyk]

Can the CT be installed the wrong way round?

Yes it can, there is an arrow on the CT Coil, the arrow should be pointing away from the DB and to the Inverter

 

[wingnut771]

I check my net usage on the inverter to make sure it's not negative. I enter my own meter reading online as they cannot read my meter as its on my property and the meter readers do not have access to it. Correct. You can choose to only export after batteries are full instead of continuously Take a pic of your flow chart when the geyser is on. Yes it can. But need to confirm on your flow chart.

Ok thanks. What have you been submitting as your "usage"?

 

[maxxis]

Yes it can, there is an arrow on the CT Coil, the arrow should be pointing away from the DB and to the Inverter

or

 

[Koosvanwyk]

View attachment 1211368

or

View attachment 1211370

Top one.
The CT value should give a zero or positive value in this view (when exporting to the grid is turned off)