On-grid domestic battery storage

htsoft

Starfrog said:

EVandPV said:

Starfrog said:

Since yesterday my luxpower inverter seems to be not working right and it doesn’t seem to register my grid activity ? How can I “reset” everything and “reboot” also i moved the batteries about 6 inches and lost connection with the inverter (it says it in the log) but that was because I unplugged the Ethernet connector while i was moving and then plugged it back in but surely that wouldn’t stop all my grid information ? 

Just a thought but from that screenshot, your pv is covering your house consumption exactly so there won't be battery or grid activity.

Yes but it seems to be coincidence that it’s going up and down and covering it exactly all the time right now …. Its just not right 

So.... does the inverter always "see" the same values at PV power and consumption power? That would mean that one of the clamps is on the wrong wire. Did you move any of those at all?

Starfrog

No, clamps have not been touched at all and all i literally did was move both batteries about 6 inches to the left of where they where and all i can think is maybe the connected cable is potentially faulty due to being damaged somehow ? But the inverter would say if the connection was not working (show up as a fault) i didnt do anything else and even after resetting everything i just see solar coming in as the exact same as consumption. When I look at my solar production via the Enphase app it says ive produced 4kWh today so far but when I look at the Luxpower inverter it says my total consumption today is … 3.9kWh. There is nothing about import or export from Grid, nothing about battery charging or discharging so maybe I should make a new battery to inverter data cable ? 

newbuilder

what’s did that on the web portal or local connect?

Starfrog

? I’ve only ever connected via my web based app and not locally but I suspect it should show the same info ? 

newbuilder

If the information is getting out correctly 

Starfrog

UPDATE ==== So it looks like it might be working as normal again. I basically switched off everything discounted everything reset everything and it now looks like its doing what it should be doing ! as when i look at the Luxpower app now it shows things how they actually are so at least it seems to have resorted back to normal. Of course I then plan on changing my batteries (Aoboet 4.8kWh) for a new Plylontech Array of 12kWh (5x2.4kWh batteries) so I hopefully will get that reporting correctly as all I should have to change is the battery brand on the lux inverter from 7 to 2 (pylontech). Question on my current Aoboet batteries I dont see any kind of earth connection yet on the Plyontech its saying i should add an earth connection ... what happens if I dont ? other than if a live cable lands on the mental case and I touch it and it becomes live and uses me as the earth .... I understand why we fit them (ex royal signals and large Masts having an earth spike driven into the ground) but the likely hood of my batteries becoming live ? 

1961Nick

Pylons come with a terminated earth strap so it's no hardship to fit it. 

Verdigris

I'm surprised Aoboets are certified for use in the UK without earthing.

newbuilder

Verdigris said:

I'm surprised Aoboets are certified for use in the UK without earthing.

It clearly states in the manual that earthing is only required if the batteries are wired in series (not done in UK). As they are wired in parallel this isn’t required

Starfrog

1961Nick said:

Pylons come with a terminated earth strap so it's no hardship to fit it. 

i am happy to fit all the earth cables but what would i attach it to in my garage without driving a spike into the concrete floor ?