Tesla Solar Panel system – Neurio energy monitoring issues

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I have a Tesla solar panel setup with a single 7.6 kW Tesla inverter (no power walls). A few days ago, Tesla came out and installed a Neurio energy monitoring device in my main electrical panel. The Tesla inverter reports solar production and the Neurio energy monitoring device has CT clamps on the service lines to measure grid import or export. Home consumption is then calculated. The Neurio device connects directly to the Tesla inverter wirelessly.

I described the issue I’m having in this post, and Tesla support just told me I needed to wait 30 days for everything to calibrate, but I’m wondering if there’s something wrong with how they installed it because I’m seeing these issues when I log into the inverter directly which shows exactly what the Neurio device is reporting (example, it sometimes reports I’m exporting more than my inverter is capable of to the grid). I have two electrical panels for my house, a main 200A panel and a smaller 100A panel (lights/outlets). They both have their own two lines coming from the meter, so four total lines coming from the meter, two going to the 200A panel and two going to the 100A panel.

The Neurio device sits at the bottom of the main panel, and there’s a cable plugged into the CT1 and CT2 ports. Both of these are splitter cables that then connect to the CT clamps, so CT1 splits into two CT clamps with one connected to a service line for the 200A panel and one for the 100A panel. CT2 does the same thing except connects to the other service line for each panel. I’ve double checked the CT clamps are installed in the correct orientation with the label that says “Source this side” pointed towards the meter/service lines side.

Everything seems like it’s setup correctly, but I’m still seeing issues as noted above. I only seem to have issues when solar production is occurring. Some questions I have:

  1. Is using a splitter for CT clamps even an acceptable way to deal with two electrical panels? It seems like it should work, but initially I was thinking they would use the CT3 and CT4 ports for the CT clamps going to the 100A panel.
  2. If my inverter is connected to the 200A panel, is it providing any power to what’s on the 100A panel? I’m not sure if when power is being pushed to the meter from the 200A panel, if it just goes straight to the grid or some of it feeds the 100A panel. If that’s the case, I would think this would be an issue since the 100A panel would read this as being pulled from the grid?

Main electrical panel

Inverter web interface

Note: The Tesla Solar Inverter Meter showing “not configured” I believe is because the Neurio device isn’t hooked up to the inverter lines in the main panel since the inverter itself reports solar production. The Neurio device is in fact configured and connected which I can see on the metering page.

Inverter web interface

submitted by /u/shred86
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Author: AliensFaith
HighTech FinTech researcher, university lecturer & Scholar. He is studying his second doctoral degree at the Hague International University. Studying different fields of Sciences gave him a broad understanding of various aspects of life. His recent researches covered AI, Machine-learning & Automation concepts. The Information Technology Skills & Knowledge gave his company a higher position over other regional high-tech consultancy services. The other qualities and activities which can describe him are a Hobbyist Programmer, Achiever, Strategic Thinker, Futuristic person, and Frequent Traveler.

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