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PV installation - data from the inverter vs data from the meter

gawel111 44556 79
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #31 18171654
    cuuube
    Level 29  
    3301 wrote:
    what is this 1 or 3 phase inverter and what model
    after conversion it turns out that 1F, I bet on 3 / 3.5 kWp. Too much consumption from behind the meter and shipping for the meter. Count 1.18xx and divide by 24 days and the actual consumption is 7.5kWh per day.

    Jur-ex wrote:
    I don't know yet what about the reactive energy Q1, Q2, Q3, Q4.
    You do not have to worry about it now, because the meter counts, but ZE does not charge fees, somehow around 2026 they will start (these are the plans).

    Jur-ex wrote:
    This can be changed, but it asks for a service password (I did not enter any password). I asked the seller for a password, but I don't think he can get it either.
    Wlodek22 wrote:
    ask on FB in the photovoltaic department, I got the password for zever there.
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  • #32 18171811
    Jur-ex
    Level 13  
    3301 wrote:
    The setting of the inverter is unlikely to be the reason why you have this 1 or 3 phase inverter and what model

    1-phase 4 kW inverter by Chint Power, model CPS SCJ4KTL-D, two independent MPPTs, practically one running, i.e. 3360Wp.
    On the second MPPT there will be 1140, (the installation has not been delivered, the panels will not be delivered) in total there will be 4480 Wp. I check the production on a PV Monitor in the vicinity of the same power, it is practically the same or better, although my panel angle is 22 degrees.
  • #34 18171840
    cuuube
    Level 29  
    It is worth checking which phase is heavily loaded and connecting the inverter to it, it will increase the car consumption, additionally use equipment during production, i.e. let's say 10-16.
    To balance the consumption, 3f inverters are better, although there are also disadvantages of this solution (no vector interfacial balancing), this option (3F), however, is the best for installations above 6 even 7 kW, when there is enough flow from one phase to consume a specific consumption device usually 2/3 kW. I have this at home - the DHW heater 4.6 Kw, more precisely 3x1.55 kW, the installation usually flows 4.5 kW, i.e. 1.5 per phase. Usually I have a production of 30/35 kWh, and consumption without charging 10-20kWh from behind the meter. A lot of consumption because I have everything for electricity.
  • #35 18171887
    Jur-ex
    Level 13  
    3301 wrote:
    what window do you have to enter the password?
    and the inverter number starts with MV: 101243 ............... and at the end with D

    The number is 10124114 ......... D, exactly the same window.
    cuuube wrote:
    It is worth checking which phase is heavily loaded and connecting the inverter to it

    This is what I have done, the whole house, first floor, ground floor, I connected the lighting and sockets to one phase, the basement to the second phase (electric boiler, compressor, etc., third phase not used.
  • #36 18171937
    3301
    Level 34  
    I have sent the password to PW

    Have you started remote preview?
  • #37 18172024
    Jur-ex
    Level 13  
    Kuźwa you are great, POLAND is already working. We will see, probably consumption from direct production should increase.
    Thank you, that's not enough - it's a pity that we live 500 km from each other. :-)
    3301 wrote:
    Have you started remote preview?

    I have monitoring running via lan. But I have to quality set access to the inverter from external DNS network (Neostrada). For now, I have no idea how to configure it.
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  • #38 18172074
    cuuube
    Level 29  
    Jur-ex wrote:
    This is what I have done, the whole house, first floor, ground floor, I connected the lighting and sockets to one phase, the basement to the second phase (electric boiler, compressor, etc., third phase not used.
    ok, but if you are connected to the phase only with lighting, sockets and a basement, they are not very energy-consuming devices. Switch to the boiler and compressor. How often are these appliances used? Light gets little, especially if it is on LED bulbs.
  • #39 18172225
    3301
    Level 34  
    Jur-ex wrote:
    Kuźwa you are great, POLAND is already working. We will see, probably consumption from direct production should increase.
    Thank you, that's not enough - it's a pity that we live 500 km from each other. :-)
    3301 wrote:
    Have you started remote preview?

    I have monitoring running via lan. But I have to quality set access to the inverter from external DNS network (Neostrada). For now, I have no idea how to configure it.


    So the inverter produced as for auto consumption, the setting of another country will not change anything, to increase auto consumption, you have to take energy from the same phase as the inverter when there is production.

    Added after 3 [minutes]:

    Via lan it is the address you entered in the IP settings
  • #40 18172511
    Jur-ex
    Level 13  
    3301 wrote:
    So the inverter produced as for auto consumption, the setting of another country will not change anything, to increase auto consumption, you have to take energy from the same phase as the inverter when there is production.

    The phase is connected to the inverter and the two floors are connected. Basically, there is only a boiler in the basement, a 1400 W 80 l heater, which works on the programmer between 19: 00-21: 00, three people at home, enough for a shower.
    3301 wrote:
    Via lan it is the address you entered in the IP settings

    The inverter connected to the router on the lan cable and does not have a fixed IP address, sometimes it changes itself to the first free one, eg 192.168.0.102.
  • #41 18173055
    cuuube
    Level 29  
    Jur-ex wrote:
    heater 1400 W 80 l, which works on the programmer in the hours 19: 00-21: 00, three people at home, enough for a shower.
    bad hour, because you are not pulling from production (thus losing 20% of the discount), or from 2T The heater itself absorbs ~ 3kWh in these 2 hours. Pull the wire from the phase on which the inverter hangs to the heater and set the heating to 13-15, then it will pull from production or if you have cheap hours at that time, when there is no sun, it will pull from 2T. Leave the production at an expensive tariff for the consumption of your home. Could use a larger tank.
  • #42 18321820
    jacekz_lodz
    Level 2  
    Hello

    I became the lucky owner of a PV plant, but I don't know how to count it :( (

    The installation works for 2 days.

    According to the counter, item 2.8.0 - I gave away 3.9 kWH
    According to the inverter, I produced 9.4 kWh

    Whereas the meter, consumption item 1.8.0: for 2 days 26kWH - that is 13 per day.

    Why is the item 2.8.0 shown on the meter, if everything that the installation produced was for the current consumption, and it was definitely downloaded from PGE?

    So why is 3.9kWh given to PGE?


    Before installing PV, I also used ~ 13kWh per day
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  • #43 18322102
    Jur-ex
    Level 13  
    jacekz_lodz wrote:
    So why is 3.9kWh given to PGE?

    It is handed over to PGE, because at some points you had more production than consumption and the surplus is recorded as handed over.
    It is now the winter period, so your consumption is definitely higher (not 13, but about 16 kWh per day on these two days.
  • #44 18322131
    jacekz_lodz
    Level 2  
    And isn't it that one of the phases consumed less than production and the excess was stored?
  • #45 18322165
    Jur-ex
    Level 13  
    jacekz_lodz wrote:
    And isn't it that one of the phases consumed less than production and the excess was stored?

    It could be exactly as you write.
  • #46 18322484
    kosmos99
    Level 38  
    jacekz_lodz wrote:
    And isn't it that one of the phases consumed less than production and the excess was stored?

    There is balancing at PGE, so the whole, not individual phases, is taken into account.
  • #47 18408509
    dario1965
    Level 10  
    I have a strange problem with the meter or photo installation. Namely, I received a bill yesterday from PGE and, to my surprise, the values of energy put into the grid were zero! After talking to the hotline, you said that if this is the case, it means that I used everything on an ongoing basis - because if I use more or the same amount at any time of the year than I produce, the indications are zero. Okay, but when I went on vacation - consumption was minimal, and the production of bulls (up to 2700wh), so for sure at some point it would count more than 0. Have you had such a case? Do you order a meter expertise for PLN 120? (at the same time they show how the meter turns out to be faulty), or look for a problem in the inverter? He also advised me to turn off everything in the house (can I use a plane switch?) And check whether the energy from the panels is generated by the meter. But in these weather conditions it is rather difficult. What do you advise? Have you had or heard of such a case? I will be grateful for the info. Best regards.
  • #48 18408521
    3301
    Level 34  
    You have a meter, compare what is on the invoice and what the indications say 1.8.0 and 2.8.0
    And as for switching off, it is not a planer because the inverter must be live, but rather turn off the loads
  • #49 18408524
    cuuube
    Level 29  
    Apparently, you used up exactly as much as you produced and put it behind the meter, so after returning from vacation you ate more than you produced ...

    My annual production is 5600kWh, consumption from behind the meter somehow 3800. I got fv for 147 PLN for 13 months and in the warehouse less than 40 kWh. This is called a well-rounded installation.


    If you want to check something, turn off home furniture, not the pre-meter one
  • #50 18408527
    dario1965
    Level 10  
    Thanks for the answer. The indications are right. I'm worried about the reason. I hope that it will be a counter - because then it will be possible to recover money, and in the case of the investor (although under warranty) or cable, etc., I will not get back this difference.

    Added after 2 [minutes]:

    But if I ate more after the holiday than I produced, the commandments to give up energy would remain (it probably does not go backwards). In previous billing periods, I had such situations that I downloaded more than I used, but the indications were large (non-zero).
  • #51 18408592
    cuuube
    Level 29  
    Upload fv photos without personal data and the aforementioned meter readings.
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  • #53 18408727
    cuuube
    Level 29  
    Billing every 6 months? Half and the beginning of the year?
  • #54 18408736
    dario1965
    Level 10  
    Yes. Settlement is every six months, but when I have a seaside, it goes to the second half of the year.
  • #55 18408754
    cuuube
    Level 29  
    Yes it does, but looking at the meter reading you use a lot more than you produce.


    Since when is the installation on the roof and how much is the inverter on the meter? What power?
  • #56 18408824
    dario1965
    Level 10  
    Power 3KW. FOR nearly 2.5 YEARS. On the meter 6.4 KWH. For now, it was almost 0.

    Below, a similar invoice from 1.5 years ago

    Date Type of reading counter indication Counter indication Direction Amount of energy [kWh]
    1 * 2 * 1 * 2 *
    2017-12-31 previous settlements 391.1000 533.4000 consumption
    2018-06-30 current settlements 810.9000 1 267.5000 consumption 420 734
    2017-12-31 previous settlements 116.1000 71.4000 entering
    2018-06-30 current settlements 795.9000 526.9000 entering 680 456
    * Time zone: 1 - day, 2 - night

    Added after 23 [minutes]:

    will paste tables - easier to read

    PV installation - data from the inverter vs data from the meter
  • #58 18409024
    Leon444
    Level 26  
    It looks as if the meter would freeze six months ago and do not charge you anything for the electricity supplied to the network.
  • #59 18409092
    dario1965
    Level 10  
    PGE does not have such a function, because for prosumers it is not even possible to track the monthly consumption on the electronic application. It is possible only for ordinary recipients, but not for prosumers. Energy is Western thought ...

    I hope this is a counter ... although it certainly did not jam because it is electronic and not mechanical.
  • #60 18409200
    3301
    Level 34  
    It looks like in the last six months you sent 0.1kWh in tariff 1 and the same in tariff 2 and you did not enter how much you produced
    earlier you wrote about the holiday and that the production of the bull (up to 2700Wh) if you gave it right and for what period because it is 2.7kWh and with 3kW installed, it would turn out that the installation worked only 1 hour.
    You also write: "Power 3KW. FROM nearly 2.5 YEARS. On the meter 6.4 KWH" then check it again and what meter is mentioned here, what inverter it is and whether you have a remote view of production

Topic summary

The discussion revolves around discrepancies between the energy production data from a photovoltaic (PV) inverter and the readings from a bidirectional meter. The original poster noted a significant difference in the energy produced (62 kWh) versus the energy exported (31.8 kWh) and total consumption (196.3 kWh). Participants clarified that the inverter's production includes energy consumed directly by the household, which is not reflected in the meter readings. They emphasized the importance of understanding how bidirectional meters work, particularly in relation to household consumption and energy export. Several users shared their experiences with similar issues, suggesting that differences in readings could stem from various factors, including meter calibration, inverter settings, and household energy consumption patterns. The conversation also touched on the need for accurate metering to assess energy efficiency and potential discrepancies in billing.
Summary generated by the language model.
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