So I have been tinkering with the energy statistics in my home for a while now and all seems to be working right. Everything except for the “Self Consumed Solar Energy” meter. any thoughts on why this is?
I have a P1 meter that splits the metering into 2 sensors for each tariff. same goes for the production side of things. might this be causing my problem?
Hi Tony,
This looks wrong: production doesn’t mean export to grid because a quota of energy produced is self-consumed, and the delta not consumed locally is exported.
You can see here that ALL energy produced (4.8kWh) is showing going to the network (purple line), while your house is importing from the network 6.1kWh (blu line). While there’s no energy going from production to the house (yellow line).
This is because you put ALL production in export. It’s wrong. In reality, if your house is consuming 6.1kWh, you should see the 4.8kWh going ALL to the house (yellow line), and the import (blu line) should be 6.1-4.8=1.3kWh.
What does your meter provide? Usually it’s production, import, export. In “return to grid” you should put the export.
Just thinking here: if my setup is wrong, could this be because I have no separate Solar production sensors? So removing those would give me accurate results?
No, like I told you, the problem is that you don’t have 3 separate sensors for production, import from grid, export to grid.
I don’t know the DSMR meter, but from what you shown me, you will need to check if it can provide with Energy Import and Energy Export values. What does energy consumption mean in DSMR data, energy imported from grid or it also sums up energy produced and self-consumed? You have to know that in order to properly configure the integration.
I remember @Mariusthvdb uses the DSMR and uses the energy integration, he could surely help. Unfortunately I don’t know enough about DSMR and what data it can provide.
fair enough. I will see what I can discover. @gigatexel made some commits to the github branch. he might know who the core developer is…
it seems really strange that a meter doesn’t provide the import and export counters but only a generic consumption counter.
The problem is you are mapping the export to the grid, at the meter, as the nett production.
The nett production should be a reading from your PV inverter, not you grid meter.
That’s what I suggested Tony as the source of the problem.
Could you clarify what Production and Consumption actually mean in DSMR context? Is Production in DSMR intended as “Export to Grid” and Consumption instead is “Import from Grid”?
Correct! 
My goodness…I can understand why users will not be able to configure the energy integration properly. 
@gigatexel this means i should remove the solar production right? or other suggestions on how to get this right? I dont have access to my PV panels production other than my DSMR production stats
Yes. You need production data of your PVI. What manufacturer/model of inverter do you use?
APSystems YC500a and i only have 5 panels. I am not about to spend the 220€ on the ECU. my next step is to try and see if i can interface with them over zigbee… for now this setup works. it shows me everything correctly except for the solar consumed bit. Thanks for the input.
wouldn’t that yield the same results as what i have now? I am not sure what the difference is…
No, the DSMR (from what I read) reads data from the house meter that’s probably the reason why it doesn’t offer production data. The shelly has 3 clamps, you put a clamp on each of the three phases and it can measure current flowing in both directions, so it can distinguish between imported energy, exported energy etc.
Do some research, many people are using it to monitor PVIs. I use Shelly EMs (2 clamps vs 3) to measure some high-energy appliances (pumps, etc.) and it works very well.
Is there a zigbee alternative? I was actually going away from shelly’s since i don’t find wifi reliable…
Well, you can make wifi reliable without spending too much (mesh).
To answer your question: yes there are. It’s a single-phase or three-phase system?
Monophase: Rialto Energy Meter Single-Phase DIN – Astrel Group Products
Three-phase: Rialto Energy Meter Trifase DIN – Astrel Group Products
Single phase.
I have a nice Unifi network. but still i don’t like to have my appliances on Wifi. I have several shellies and I find my Zigbee stuff way more reliable. Those meters look interesting.
thanks
