Strange, but it’s suddenly just bounced into life!!
Not sure I have seen it mentioned on other threads but this is a handy tool for pricing and designing a layout and will give a list and price of all that is required.
Easy PV > home (easy-pv.ie)
Something doesn’t seem right here, sun is blazing down on me, not a cloud in the sky, and I’m struggling to generate more that 300w….
by this time yesterday I was generating over 1kW…..
Yesterday;
today;
9.9kWh generated at 8am??
You will see some wasted power due to DC/AC conversion and this is expected. Also take into account that inverter itself is not running out of free air. The power usage is low the waster energy is more appearant. From my constant monitoring I can see that I lose 10-15% of charge a day. If backup port is not in use then disable it. It has separate circuit that needs to be powered on in the inverter.
Now saying all this I do know that DSP version does have impact on the amount of power being used/wasted. When I have upgraded to 25 the inverter started wasting +200-300W even when there was no load. Had to downgrade it back to 22 to get it sorted. Also bug was logged with Solis regarding this.
And we are off...
Rang solis this evening in the uk , because I cant connect my data logger to the solis cloud..so hopefully I get that sorted. I registered it to the solis app and wasnt keen on that so I then tried the cloud version which I'm use to and not a dicky..👍
You well get that from the Solis app not in real time though. I use the myenergi app to see what is being used from both PV and battery and monitor export to the grid as well as the eddi. Not a perfect ecosystem but still have good visibility of what's happening.
Whatever you configure the CT clamp points as, that is what the app will populate with.
Harvi's are only for bringing remote CT clamps to your Eddi or Zappi via radio when running a cable is not an option.
The only way to have a Solar PV and Storage icon is to have TWO SEPARATE inverters. Examples of Storage inverters are a Tesla Powerwall or a Sofar ME3000
Yes have the harvi
I'll check what both ct 1 and 2 are doing in consumer unit tomorrow before work.
Seeing what the battery is using is not really what I want, id prefer to see what my pv is making. 👍
Do you have a harvi in your setup? Just checked my setup again as I am using a harvi CT1 is monitoring grid and CT2 is monitoring the AC output from the MCB.
@Jonathan I think will be able to explain this better. It's basically because we are using DC batteries and hybrid inverter you are limited to what you can monitor.
Ha long
I'll know tomorrow when the sun comes out and see if there is any change. I'd say it's the same as your setup. I'll let you know tks 👍
Where is your second CT clamp connected? I initially thought that I could monitor generation and battery as well with 3 CT clamps but does not appear to be the case.
One CT clamp monitors the grid and second monitors AC input which combines generation and battery both are installed in the consumer unit.
I selected gen and battery on zappi so hope this helps
It changed display 🤞
The Zappi doesn't need a CT clamp - it monitors it own. You need one on the grid.
When it comes to Solar, you can only monitor AC. So if your inverter is a hybrid, then you can only see the AC output from it - you cannot read the PV which would be DC.
Hi guys maybe you can help
The solis has a ct clamp for the invertor.
The myenergi has a hub which has 1 ct clamp which monitors the zappi
And a second which monitors power from the investor ( I think)
Do I need a 3rd ct clamp to see my Pv production
Impossible to tell now that they're installed and it's not like anyone actually calibrates them with one of those energy meters like you see people do on youtube.
I don't have solar PV (I'm considering it at the moment and doing my research!). However, for years, I've had an Owl monitor with CT clamp on the incoming meter tail which measures the house consumption. I always noticed that the stats produced from the Owl were always higher than my actual meter readings, though.
More recently I bought a "Watts Clever" monitor which also monitors the house consumption but it uses an LED detector which counts the meter pulses on my digital day/night meter. With this running for days or weeks it produces readings which exactly match the meter. It's a little slower to react to instantaneous energy usage spikes as it counts the pulses and gives a reading every 30 seconds, but overall consumption figure match my bill!
The CT clamp on the Owl will consistently read over 200 watts higher than the "Watts Clever" if I have my induction hob switched into the house circuit (but in standby on its touch controls). It would appear that the reactance in the hob is causing the CT clamp to read current consumption erroneously. Even with the hob now switched out of circuit, the Owl CT is currently reading 483w and the meter is recording 350w. At low energy usage levels the discrepancy varies according to the load consuming the current (motor on the oil burner, fridge kicking in etc.). Pure resistive loads like the kettle or immersion or oven produce close readings.
I'd question the accuracy of those CT clamps generally in monitoring the house load, particularly when grid consumption is low.
Edit - I know the shelly em has a power connection so it's measuring the voltage and therefore should be more accurate at calculating the wattage than the Owl (which uses an average voltage setting), but maybe reactance is affecting the figures at low loads?
How accurate are the various CT clamps you are using.
Solis cloud, but I do have 60 second updates not 5 mins.
However I also have a shelly em reading my live grid values and they do match up
Looks like the consumption value from Solis is under-reporting. Or the inverter is using the missing power between the two values?
Are you pulling the data directly from the Inverter or from solis cloud?
It's a solis 6kwh 5G with a puredrive 5kwh battery.
So here is the house usage before the battery is depleted:
And the battery consumption for the same period:
You can see the battery usage being higher by a little bit when it is relatively idle.
Now with the battery depleted you can still see at least a 50w difference:
Worth mentioning I have nothing connected to the AC backup at this time so it wouldn't be that.
I don't think its a timing thing. I've done some experimentation where I've turned off mcbs in my fuse board to any circuits that may have fluctuating loads. So then I can see a very constant house load over 10s of minutes. The delta is always there. Its between 120w to 180w for the times I look, so seems very similar to what you are seeing Dracula. What inverter/battery are you on?
I am also pulling real-time data from the inverter/logger (python script executing on laptop), and can confirm that the Solis Home data is accurate, albeit delayed for up to 5 mins. (I just posted the Solis Home app screenshot as its easier to illustrate than some logging from a script)
Note, the SolisCloud app hides all this... it just shows the house load the same as the current battery power. But that is not correct: I know that my house load is less, as I monitored all power consuming devices at that point in time.
Not sure how could see that from previous day 6, are there some stats/graphs you know I could look at?
If you look at the previous days data does it show all that wasted power ?
Just wondering is it a timing thing.
I am 100% seeing this, all the time when using the battery.
Right now: 170w wasted how?
It does fluctuate up and down though (5 mins later):
It can be 150-200w. Maybe the inverter is using that (for what?) or that's just poor conversion from DC to AC? Or option 3, the time when it took the house load reading doesn't line up with the time it took the battery reading (someone who can pull live data directly from the inverter will be able to clear this up) - but not sure this makes sense because the logger collects all data at the same time and sends to cloud.
When the battery is empty it is pulling from the grid the correct amount.
I've recently had a system installed, with a 6kw Solis Hybrid 5G inverter, 5kwh Puredrive battery and an EDDI.
In general, I'm very happy with it. There are few things I'm trying to get a greater understanding of.
During non-daylight hours, when the PV is no longer producing, I see a mismatch between the power the battery is delivering compared to what the house is consuming.
I realise that the battery side is possibly measured in DC @ 50v, and that there are going to be conversion losses. But, the difference exceeds what I'd expect.
The Solis Home app shows the readings, and I'm also verifying the same by querying the inverter/datalogger directly with a python script (pysolarman, thanks all in the monitoring/automation thread).
Per this screenshot, you can see that battery is delivering 480w, and the house is consuming 330w. A this point in time, there is no grid import (but that can flip to 40 or 70W, depending on when I look)
So, there is a delta of 150w. And there is always a delta of somewhere between 120 and 180w.
While 150w is not a huge amount, it does add up.
150w over 6 hours (i.e. 5pm to 11pm) is 900wh. Which equates to 18% of my battery drained from sunset to night rate.
The 330w house load is accurate: to verify I've switched off most mcbs, and put a power monitor socket the remaining appliances.
Are others seeing this?
And what is the reason of a mismatch? (I can accept 10/15% conversion losses, but this is always greater)
Thanks gents
I logged a call after the install with Solis and they told me I was running the latest code.
That is the newest version I've seen. I have 350022.
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