On-grid domestic battery storage

EVandPV

And this is the main screen ......

Doobedoo

Thanks. All I get is what you see in that screenshot. Having asked repeatedly why we don’t have a battery level indicator I was told that they were working on it. 4 months later we get that little battery symbol you can see at the top of the left hand column, when I asked why we couldn’t have a percentage indicator this the reply I got.

”The improvement with regards to state of charge is that it is accurate now, and displays correctly. We may look at introducing a percentage state of charge but it is very difficult to accurately predict battery to within a percent.”

mickyduck55

Solarchaser said:

Essentially you are correct. 
You can let them fight it out, in which case I *think* the solic will win, until it's full, then batteries will take over.
That's what's reported by members with sofar, but lux responds quicker I believe. 

Does anyone have this double setup.. my installers left the "Solic"clip off the incoming grid power so no hot water.  Just re installed it and 3 green lights on the solic suggesting I have power to spare but my import from the grid rises from nothing to 3 KW so something is not right

Any suggestions on how to set this up so it will work?

EVandPV

mickyduck55 said:

Solarchaser said:

Essentially you are correct. 
You can let them fight it out, in which case I *think* the solic will win, until it's full, then batteries will take over.
That's what's reported by members with sofar, but lux responds quicker I believe. 

Does anyone have this double setup.. my installers left the "Solic"clip off the incoming grid power so no hot water.  Just re installed it and 3 green lights on the solic suggesting I have power to spare but my import from the grid rises from nothing to 3 KW so something is not right

Any suggestions on how to set this up so it will work?

This sounds similar to what's happening with my homebrew arduino immersion controller.
When my battery inverter is active and is charging/discharging, the immersion controller ct around the grid wire is reading around 3kw no matter how much power is flowing.
Fortunately this works in my favour as it means the batteries take priority. Once the batteries are fully charged and the inverter goes into standby, the immersion controller ct reads as per normal again and begins heating the water if there's enough surplus pv.

mickyduck55

EVandPV said:

mickyduck55 said:

Solarchaser said:

Essentially you are correct. 
You can let them fight it out, in which case I *think* the solic will win, until it's full, then batteries will take over.
That's what's reported by members with sofar, but lux responds quicker I believe. 

Does anyone have this double setup.. my installers left the "Solic"clip off the incoming grid power so no hot water.  Just re installed it and 3 green lights on the solic suggesting I have power to spare but my import from the grid rises from nothing to 3 KW so something is not right

Any suggestions on how to set this up so it will work?

This sounds similar to what's happening with my homebrew arduino immersion controller.
When my battery inverter is active and is charging/discharging, the immersion controller ct around the grid wire is reading around 3kw no matter how much power is flowing.
Fortunately this works in my favour as it means the batteries take priority. Once the batteries are fully charged and the inverter goes into standby, the immersion controller ct reads as per normal again and begins heating the water if there's enough surplus pv.

Will be good if it is just a reading glitch... I will check my main meter readings

Thanks

orrery

mickyduck55 said:

Does anyone have this double setup.. my installers left the "Solic"clip off the incoming grid power so no hot water.  Just re installed it and 3 green lights on the solic suggesting I have power to spare but my import from the grid rises from nothing to 3 KW so something is not right

Any suggestions on how to set this up so it will work?

It isn't just the clip on the wrong way round is it? That would have that effect.

mickyduck55

orrery said:

mickyduck55 said:

Does anyone have this double setup.. my installers left the "Solic"clip off the incoming grid power so no hot water.  Just re installed it and 3 green lights on the solic suggesting I have power to spare but my import from the grid rises from nothing to 3 KW so something is not right

Any suggestions on how to set this up so it will work?

It isn't just the clip on the wrong way round is it? That would have that effect.

Tried both ways... just turned off PV and Solic so recalibrated and looks fine at the moment.. wont be able to tell is its working until the batteries stop taking charge so not likely today

mickyduck55

mickyduck55 said:

orrery said:

mickyduck55 said:

Does anyone have this double setup.. my installers left the "Solic"clip off the incoming grid power so no hot water.  Just re installed it and 3 green lights on the solic suggesting I have power to spare but my import from the grid rises from nothing to 3 KW so something is not right

Any suggestions on how to set this up so it will work?

It isn't just the clip on the wrong way round is it? That would have that effect.

Tried both ways... just turned off PV and Solic so recalibrated and looks fine at the moment.. wont be able to tell is its working until the batteries stop taking charge so not likely today

I do have an issue, seemed to work all day with batteries charging and Solic off,  but when the sun went down I suspect the batteries have emptied themselves into my immersion..... they were at 35% now down at 10% and off...

Tank full of hot water

mickyduck55

Now I really do not understand my Solic

Set the batteries to charge 1-2 am just to see how it worked as no advantage as not on a fancy tariff

At 6:30 am the Solic sends all power to the immersion !

Would be sort of logical if it had immediately sent power to heat hot water  No idea why it would wait until 6:30?

Disconnected until I get a reply from Earthwise with clarification If it wont work its onto eBay.  Maybe I should start a new thread so Im not clogging up this general one?

Just searched this thread and I am not alone... when I change my tariff I will probably do as others have and remove it in favour of manual operation and or being happy with heating inexpensively overnight and exporting in the day.

We have an electric shower as well as a "normal" one so maybe its switch over to using that?

3kW shower for 5 mins got to be better than heating gallons of water just to let most of it cool down as no trickle charge from Solic

1961Nick

Could something have switched of at 6.30 causing a momentary export before the inverter could ramp down? The Solic jumps in to grab the export & the battery responds by ramping back up again to meet the Solic demand.