Solis battery inverter query

[Badger]

I understand the pylon grid side is the power to or from the grid blue is import from grid to house and export goes red towards inverter from pv micro inverters but the house in the bottom left always seems to be around 0.13kw when the solar doesn't export and the house is importing does any solis people. Know what the house is actually saying about the system

 

[Murdoch]

you need @binky

 

[Scott Charles]

I understand the pylon grid side is the power to or from the grid blue is import from grid to house and export goes red towards inverter from pv micro inverters but the house in the bottom left always seems to be around 0.13kw when the solar doesn't export and the house is importing does any solis people. Know what the house is actually saying about the system

Check the consumption meter is correctly connected if you have an RS485 version or CT clamp is in the right place and the inverter settings reflect this. Solis will allow the CT clamp/meter to be grid side or consumption side, depends on the application. If something is wrong then the data will be screwed up and the system potentially wont work properly on self consumption mode.

 

[Badger]

Ct clamp for consumption meter is connected grid side and solis ct clamp connected on the inverter cu tail the solis is set for ct clamp on pv is that correct

 

[Badger]

I have attached a drawing of the connections if that help to check I'm correct

 

[Oldman22]

Thats how mine is, if it helps.

 

[binky]

The downside of CT clamps is they don't deal very well with very low power flows. Anything below about 200w they tend to get wrong. The upside is they respond faster than meters to changes in energy flow above that.

 

[Badger]

View attachment 15151
Thats how mine is, if it helps.

I can see you have one inverter for pv but we have micro inverters across 3 circuits outwards ie west facing roof south facing roof and shed east facing roof going to that one consumer unit does that make a difference with micro inverters

 

[Oldman22]

This works fine, copied from another forum.

 

[Badger]

So do I not need the second ct clamp direct from ac coupled inverter then

 

[Oldman22]

So do I not need the second ct clamp direct from ac coupled inverter then

Look again, it has two clamps, one direct from the Solis and the other via the meter. Both are used as are mine.

 

[Badger]

So I'm guessing the solis clamp looks like it's on the consumer unit busbar between the circuit breakers of micro inverters and the consumer unit main switch

 

[Oldman22]

Yes its probably not actually on the copper busbar but anywhere from that point following the isolator up to the cu above would do.

 

[Badger]

Another question why would my data of export and import be showing as Gwh instead of Kwh I replaced the solis data logger today from Wifi unit to a LAN connected unit and the data seems to be showing odd readings any ideas

 

[Oldman22]

No idea, but your one up on me, I fitted a LAN logger yesterday and it refuses to play nice, it seems to think its wifi but offline.

 

[Badger]

The lan is better at updating the power usage etc but just an unusual thing to have had Gwh not Kwh

 

[Badger]

Look again, it has two clamps, one direct from the Solis and the other via the meter. Both are used as are mine.

The solar is the same cu as my inverter is connected and the surge protection see picture attached will this make a difference

 

[Oldman22]

I would just put 1 CT as close to the mains in tails as I could and the other on the PV inverters mains supply.

 

[binky]

The lan is better at updating the power usage etc but just an unusual thing to have had Gwh not Kwh

For reasons best known to Confusious, they like GwH, irritates the ***** out of me...

 

[Badger]

Hi binky who is confusious