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How do I force the replacement of a GAMA 350 meter with a wmbus model at Stoen Operator?

michalekk1 789 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 21328895
    michalekk1
    Level 24  
    Hi,
    I have had a GAMA 350 electricity meter in my flat since July this year. Due to my desire to integrate with HomeAssistant, I asked Stoen Operator to activate the local remote reading interface. However, unfortunately, I was only activated the P1 port, which does not satisfy me, as I do not have a cable for remote reading of the meter.
    Looking through the OSD website it came out that they have several variants of this meter model, and unfortunately my copy does not have a wireless interface.
    Link to current PDF: https://www.stoen.pl/files/2024-11/interfejs-sieci-han-w-stoen-operator-v1-0.pdf

    I would like to know if I have any leverage on the operator to replace the meter with one with wmbus, or do I need to buy a wireless adaptor to read after P1?
    Picture of my meter:
    How do I force the replacement of a GAMA 350 meter with a wmbus model at Stoen Operator? .
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  • #2 21328909
    Mobali
    Level 43  
    Legally, there is no such leverage. This is because the meter is the property of the operator and in no way can you be "forced" to replace it with the one you want. You can only ask for a replacement and argue that it lacks the features you want. Small chance, but maybe worth a try?
    Helpful post? Buy me a coffee.
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  • #3 21328936
    michalekk1
    Level 24  
    What I have found is that the Decree of the Minister of Climate and Environment of 22 March 2022 on the measurement system says:
    According to paragraph 7 I am in category C1.
    According to paragraph 18, the measuring equipment is to comply with the requirements of paragraph 7.3.2 of Annex 1.
    Paragraph 7.3.2 of Annex 1:

    How do I force the replacement of a GAMA 350 meter with a wmbus model at Stoen Operator? .

    Mentioned regulation: https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WDU20220000788

    Is this not a strong argument, or have I made a mistake in my search somewhere?
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  • #4 21329195
    Mobali
    Level 43  
    Do you want to 'kick yourself with a horse' by means of regulations? Write a well-founded request for an exchange. If successful, cool. If not, appeal asking for the legal basis for the refusal. Only then will you have something to refer to, this will also be a good time to pull out specific paragraphs.
    Helpful post? Buy me a coffee.
  • #5 21329214
    michalekk1
    Level 24  
    I had a chat with the metering department and it came out that they no longer have meters with wmbus and will not have them.
    This, in my opinion, defeats the point of further discussion with them.
    At stake is the issue of my comfort - I had hoped to 'get my head around' all the meters in the house with one device I already owned, but I counted myself out. Now it's a matter of buying/making a whistle to put in the P1 port - I got the cryptographic keys, so the interaction with the operator is over.
    As a rule of thumb I prefer to push as much IoT as possible with wired connections, so all in all, after thinking about it, I'm not that unhappy.
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  • #6 21330007
    Mobali
    Level 43  
    michalekk1 wrote:
    ...so the interaction with the operator is over.
    It is always a good idea to talk first. Starting the discussion with a claiming attitude and propping up paragraphs is usually counterproductive.
    Helpful post? Buy me a coffee.
  • #7 21350775
    michalekk1
    Level 24  
    Informatively, using the limited information provided by the DSOs and general knowledge gained from the depths of the internet, we managed to read the P1 interface provided by Stoen Operator. Thank you for the support of the people involved in the project mentioned below, without you it would not have been possible!
    The meter provides information on total instantaneous active power and total electricity consumption at 1 second intervals.
    The interface is compatible with the DLMS P1 Companion Standard, parameters: open collector type output, 115200 baud, 8N1, inverted signal (!). The signal is encrypted using AES-GCM and the data can be accessed using a key provided by the supplier.
    Frames sent by the counter:
    0-0:1.0.0(241212141024W)
    1-0:1.8.0(000151.236*kWh)
    1-0:1.8.1(000151.236*kWh)
    1-0:1.8.2(000000.000*kWh)
    1-0:1.8.3(000000.000*kWh)
    1-0:1.8.4(000000.000*kWh)
    1-0:2.8.0(000000.000*kWh)
    1-0:2.8.1(000000.000*kWh)
    1-0:2.8.2(000000.000*kWh)
    1-0:2.8.3(000000.000*kWh)
    1-0:2.8.4(000000.000*kWh)
    1-0:1.7.0(00.082*kW)
    1-0:2.7.0(00.000*kW)
    0-0:96.13.0()
    0-0:96.1.0(68545743265265)
    0-0:17.0.0(00000)
    0-0:17.0.0(70000)
    0-0:17.0.0(70000)
    0-0:94.98.31(00000)
    0-0:94.98.32(00000)
    0-0:94.98.35(00000)
    0-0:94.98.36(00000)
    0-0:94.98.33(3)

    I use a simple ESP32 to receive, with a power supply allowing 5 V from the P1 port and software https://github.com/UtilitechAS/amsreader-firmware

Topic summary

The discussion concerns replacing a GAMA 350 electricity meter installed by Stoen Operator with a wireless M-Bus (wM-Bus) enabled model to facilitate integration with HomeAssistant. The current meter only has an activated P1 port for local remote reading, lacking a wireless interface. Legally, the meter is operator property, and there is no guaranteed right to force replacement. The user referenced the Decree of the Minister of Climate and Environment (22 March 2022) regarding measurement system requirements for category C1 consumers, but practical leverage remains limited. Stoen Operator confirmed they no longer stock meters with wM-Bus, making replacement unlikely. The user plans to use a wireless adapter connected to the P1 port, having obtained cryptographic keys for encrypted AES-GCM communication. The P1 interface supports DLMS P1 Companion Standard with parameters: open collector output, 115200 baud, 8N1, inverted signal. The meter transmits detailed consumption data at 1-second intervals, including instantaneous active power and total electricity consumption.
Summary generated by the language model.
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