Pocster

No availability. Also require 3 phase ( 10k for me !! )

This is exactly how I expected it to work . SE slave to PW

Did wonder about the location of the CT clamps . Will try my experiment first 😁

Actually re reading docs it can pV charge whilst in discharge .

SE was 97% when I set it to discharge only . It’s now 100% ! 🙄🙄🙄🙄🤔🤔🤔🤔🤔🤔🤔🤔

Actually a question PW can charge at max rate of 3.66kwh. So needs 4 hours to fully charge . I can’t find a max rate of charge for SE . Because it’s DC will the affect its rate of charge ??? . Google suggests DC charging is faster but no explanation of how you can compute the rate of charge and hence time required .

PowerWall has very limited settings because it’s algorithm does what It wants ! SolarEdge is dumb ( good ! ) so I can set times to charge / discharge etc. It’s default state is “ maximise self consumption and charge / discharge as needed “ . Fine in a normal situation. Here though of course it sees the PW and grabs it . PW then sees SE and grabs it . Installer is oblivious to this issue . I’ve proven it happens so I can stop the yo yo loop . What I’m not sure about is when both need the grid to charge . PW does what it wants ( and I know if it sees the SE in normal mode it will drain it ). So I’m hoping if SE is set to “charge from grid/solar “ it can’t discharge hence PW won’t see it and therefore will use the grid ….

POwer Wall Solar Edge 😁

SWMBO is in with youngest grandson so we are eating kw like there’s no tomorrow. I notice in Tesla app our consumption is 3kwh. This is not possible . SE says solar input is 3kwh . Equally not possible ( SE at 97% ) . It’s stealing from PW !! Quickly go in SE online app set it to discharge only - house load drops to 0.4kwh . There proof !!! Might set SE and PW to both from grid tonight at off peak and see what happens …

Right ! I’ve been thinking about this ….. I think the default SE option of “ maximise charge/discharge” is incorrect in this situation. Essentially ( I believe ) it means the SE will charge / discharge when it wants . This I’m 100% certain as I have proof means it will steal from the PW for its own needs . The solution to this is set a discharge only option . But that means it can’t charge from PV . So it might require that it charges from PV for most of the day then I change it to discharge only at a certain time . This should stop all the stealing I think . I need to empty SE and PW to test this . For winter I assume telling SE to charge only from the grid at off peak means ( hopefully ) the PW won’t steal from it … Makes sense in my head . Update when theory proven or disproven !

Apparently installer contacted SE and there are no known issues . So ! I’ll drain the PW into my EV when it’s low . I’ll do this deliberately at the end of the day so SE and PW have no chance of recovering via PV . I’m assuming the same will happen .

The SE app has been strange recently. SE is set to only charge from solar and not to discharge between 00:30 and 04:30 otherwise PW grabs it all . This bit works . What SE is doing now I have no idea …. I suspect some firmware balls up on SE side …

I didn’t include the standing charge tbh . But all the export has mitigated that cost .

Yes . I suspected issues . Now they are confirmed. Best to share the rewards and the pain ! PW charges off SE ( correct I think ) Then greedy SE steals it back - around the loop we go . Even when PW charges from 00:30 to 04:30 SE gets ready to steal !! Talking to installer as we speak ; also notice SE app doing strange ( incorrect ) things . The lovely effect of cloud apps 🙄😞

Waaaaaaannnnnnnkkkkkkkeeeeerrrrsssss

@SteamyTea get back in your box . I have no idea where your box is , nor what it is made of , nor it’s dimensions , nor the units to measure it in . Mr. Munt contest over 😌

Guess

1 Nm

My manhood is 1000000000 long nanometers ? , centimetres? , yards ? Doesn’t matter ; it’s just (expletive deleted)ing big

You know it’s kWh - I just couldn’t be (expletive deleted)ed to type it . @ToughButterCup understood .

Our self consumption in summer ( ignoring ev ) is around 10kw Of course due to all the usually working HA - no light etc. gets left on …

So far this month zero electricity bill and that includes charging the EV. I try to be intelligent ( did say try ! ) rather than frugal on use . EV charging for example ; with a bit of planning has cost zero to charge . Obviously having 23kw of storage helps somewhat .

Shame on you ! . Minimum acceptability is Pret !

100% ! . Do it and learn ! . Nothing worse than later “ wish I had “ ; though sometimes I do suffer “ wish I hadn’t “ 🙄

No project is ever finished . Ask my mate @Onoff