It will vary depending on your house size Vs installed system size, but it brought our small detached house from a D1 to B3
I had an install around the same time. When it has been sunny, my generation takes the form of a bell curve whereas yours appears to be a more of a flat line. Here's my output for July 8 for comparison. Mine is a SE-facing 10 panel 4Kw setup. I had thought the bell curve made sense, now I'm not sure. What is everyone else's like?
Yeah, your output is a normal curve and can see the cloudy parts. Looks like you might have shading in the morning as it ramps up fast from about 8am.
Yes, a bell would be correct. And depending on whether you're E or W facing, the top of the bell will be offset left or right to match the solar maximum.
Yours @p15574 appears to be offset left, so getting more morning sun than evening, so is partially East facing?
I'm getting a bell curve of sorts, with the dips for clouds. It is just very low peaks for an expected 2.1 kWp system. I'll be following up with the installer.
Here's 8 July (best day to-date)
Do tell the installer you want them to check it. Have been times for others here when a panel wasn't connected or could be a faulty panel(s) or something else.
Just a quick update - Got in touch with the installer and set up an appointment with them (no hassles for them to come out).
Some cabling issues identified and we have already gotten peak generation 400W higher than previous peak generation. Also much better performance at lower sunshine / cloudy cover.
We're Only one day in and will keep monitoring because still about 1.75kW peak generation on 2.1 kW panels (cloud cover is crappy today). But still much better than max of 1.3 before.
Brill. Well done for chasing them to sort it for you
How de fook an installer can make any mistake with a 5 panel setup with no battery involved is totally beyond me
Not sure either. It was a wiring issue with the panels. 6kwh batteries have been working fine.
couple of questions if anyone can help:
3.1kW into the car sounds low anyway, does it normally charge at a higher rate than this? Is it at the end of the charging cycle (ie near 100%)?
Thanks for reply. No, it's at 60% and the target is 90%.
What makes that 'Low'? It's on ECO mode, so it's just taking what the panels are producing. But I don't know why it wasn't taking the full 5.7kW at that moment. I think it's related to how often it 'checks' to see what the surplus is, but I watched it for a while and it didn't really improve. I have start/stop delays set to 40s. I had them at 5s, but was getting Pilot Problem errors, which is why I increased the delays (found that tip on myenergi forum).
Is there a sweet spot for the start/stop delays?
Ok, then ECO mode explains why it's at 3.1kW then. Take it off ECO mode and does it go up to 5.7kW?
What sort of car is it? My Xceed PHEV only takes ~3.2kW (16A), where my brother's full EV happilly draws down the full amount
Why / how does that explain it ?
All PHEV's will never take more than 3.2kW. Not even down to a models are brand thing either.
If it was power-matching the local generation, hence I suggested taking it out of ECO (or ECO+) mode.
It's a 2020 Ioniq fully electric.
Taking off ECO: the other modes are ECO+ and Fast.
Fast charges it at 7kW for me, which for me means drawing at least 1kW from grid, which I'd rather avoid.
ECO+: same problem as ECO, but was also experiencing 'Pilot Error' problems as mentioned.
And it's at the charger that you are changing this setting, right? And it's a Zappi?
And you do have a CT for the Zappi connected at the meter-box too, right?
Yes and yes. But it's on the app that I'm observing the export-whilst-charging behaviour. It might be that the app is mistaking some of the charge for export?
Although I do remember seeing the same behaviour on the zappi panel itself.
Is the Zappi showing you the grid input on the app? For example below it's pulling 4.2kW off the grid.
yes it shows grid import/export.
At the moment it's showing 1.4kW into car and 0.6kW out to grid.
Setting the "device limit" will cap the charging at the rate you specify. You you can have FAST charging running at 4kW or whatever amount is lower than generation
Have you an Eddi ? Could both the Eddi and Zappi be Master ?
Thanks for info.
Yes i have Eddi which is also the hub. Zappi is priority 1, Eddi is 2.
I don't know which is master.. I'll have a look
Eddi is the only master
Or do you maybe have grid linked on both. Check the CT Config on both.
Have you a Harvi ? It should only be linked to the Master
On Eddi, CT config was CTINT: internal load. CT1 None, CT2 none.
Didn't get around to checking zappi.
I'm guessing it's not related to start stop delay settings and this behaviour is not expected?
So the Grid is on the Zappi. I wonder has it some signaling issues sending the grid data to the Eddi ? However, the Eddi appears to clearly see the exporting.
Are you on the v5 latest versions of firmware ?
https://myenergi.info/firmware-versions-t10052.html
