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  • #76
    I know Inflection doesn’t come across in text but I wasn’t irritated when I asked why you wanted to know, I was trying to understand your thinking before asking my brother to open the box.
    Message received. Believe me when I tell you I'm trying to help you get your system fixed the way you want it. Download this Solar Edge document:

    StorEdge™ Wiring Guide & On Site Checklist for North America (storedge_wiring_quick_guide_and_on_site_checklist _na.pdf).

    If you read it and understand what they are trying to achieve at each step, then you will know more about your system than the installer. But that's not the point. You paid Vivent for a service and they are not providing that service. How can this be rectified by Vivent?

    Why does a customer always have to know more about the product than the company selling the product?

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    • #77
      I am going to LA to deal with some issues but will be back in Sonoma County in ten days. I am not familiar with your exact system but I think we share the same goals to reduce our dependency on PGE so to the extent that I can be helpful I am available and nearby. I am only fifteen minutes from Santa Rosa and often travel there so I am sure we can figure out a way to collaborate to help you optimize your system
      9 kW solar. Driving EVs since 2012

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      • #78
        Originally posted by Ampster View Post
        I am going to LA to deal with some issues but will be back in Sonoma County in ten days. I am not familiar with your exact system but I think we share the same goals to reduce our dependency on PGE so to the extent that I can be helpful I am available and nearby. I am only fifteen minutes from Santa Rosa and often travel there so I am sure we can figure out a way to collaborate to help you optimize your system
        Thx Ampster, Phil for the help, I’ll read the document Phil you listed. I agree Vivint is lacking, but maybe it’s by design. That I’m aware we were the only customer that received two batteries, our salesman informed us it was a mistake that they only designed systems with one battery, but that since he told us we could, he would make sure we would get it. Since the original design was for one battery and with no connection to the house, and since I’m sure ours was a typical design, their “Performance team” probably hasn’t ever had to deal with these questions.

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        • #79
          Ok guys the specialist came out and sure enough they had one inverter and battery setup in pack up mode and not correctly in master slave mode. On our firs full day of full system use we produced 43.72kWh but I think they still have it configured wrong,
          Attached Files

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          • #80
            Did they set your high rate period? I don't understand the production bump late in afternoon/early evening The orange consumption number looks to be offset by solar during the day but not early evening. The only way is to be sure is to see what PG&E shows for same hours on their website. Usually that detail lags by a day. Maybe that aberration is how battery consumption is depicted. Also concurrent late afternoon charging and discharging is mysterious.
            This is a DC coupled system so the best time to charge the batteries would be with that clipped solar energy during mid day. That would also suggest you could utilize the batteries more agressively overnight. On the other hand if you are only paying Vivint for power produced, clipping represents no loss to you.
            Last edited by Ampster; Yesterday, 12:17 PM.
            9 kW solar. Driving EVs since 2012

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            • #81
              Originally posted by Ampster View Post
              Did they set your high rate period? I don't understand the production bump late in afternoon/early evening The orange consumption number looks to be offset by solar during the day but not early evening. The only way is to be sure is to see what PG&E shows for same hours on their website. Usually that detail lags by a day. Maybe that aberration is how battery consumption is depicted. Also concurrent late afternoon charging and discharging is mysterious.
              This is a DC coupled system so the best time to charge the batteries would be with that clipped solar energy during mid day. That would also suggest you could utilize the batteries more agressively overnight. On the other hand if you are only paying Vivint for power produced, clipping represents no loss to you.
              The tech said they were aware of my peak hours and that they had the system set to comply. The house will never be able to run off the batteries totally because the upstairs, heater and air-conditioning are not connected to the batteries. We could only connect 4 breakers per inverter to the batteries.We’re not using the upstairs and the heater right now so it should be negligible. I not sure they are that worried about charging batteries off clipped power. Especially if it doesn’t cost them money

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              • #82
                As long as you are getting generation and can verify some loads are being offset by battery power you should be happy. Based on only some loads supported by batteries there may not be as much coorelation with the PG&E numbers on an hourly basis. However long term hopefully you will be building NEM credits as the days get longer.
                9 kW solar. Driving EVs since 2012

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                • #83
                  I assume the two screen shots are from the Vivint app. As you have noted, solar production looks odd.

                  Questions:

                  1) Using the Vivint app, can you view each system by itself? System 1 & System 2?
                  2) In the Vivint app, can you view the equipment being displayed?

                  Other mystifying thoughts:

                  You said some modes were not set up correctly (I love RS 485...). Did the tech verify all the devices were communicating correctly after the mode change?

                  Also, the SolarEdge manual for the energy meter says it can be used with two inverters IF the additional RS-485 board is installed. In other words, Inverter 1 RS 485 out io Inverter 2 RS 485 Port 1 (native port), Inverter 2 RS 485 port 2 (RS 485 plug in port option) to energy meter. If they did not add the RS 485 plug in port in Inverter 2, then I think you would have an unstable communication system, which mean unstable data. I didn't see a commercial gateway in your schematics, so that option does not apply.

                  To verify correct installation, the RS 485 plug in port would have to be verified in the inverter that has 23 panels plugged into it.

                  SolarEdge Meter.png

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