Power graph not making sense

I have reached 10 days of my solar panels being on. The solar curve seems to make decent sense. The first 5 days were sunny days and the graph reflects that, followed by 5 days of cloudy or stormy weather. The graph seems to be ok in the sun department as far as my new user expectations go.

The power side is all sorts of erratic and I have so many questions. The obvious one is perhaps sense is not completely set up yet and if I should ignore all data until then, that is a good enough answer for me. Signal check says 60%. On Saturday the 22nd, I ran through trying to get past this once I figured out I can turn the inverters off at their own panel. I turned the inverters off when prompted and back on when prompted…then waited. Eventually the app told me it had failed and that I needed to redo it when the sun was shining. uggh. The weather didn’t cooperate at all during the weekend, and weekends are my only chance to run through the steps again.

Is this 60% signal thing a normal hurdle people just have to get through?

Next thing (which may be ignored if the 60% signal is the root cause) I don’t get the power graph at all. Surely my house is using power throughout the night, but sometimes it gives me negative numbers. At Night! During the day the house should be using less power than in the evenings, but the graph makes it look like my power consumption goes up at peak sunlight when the house is the least occupied. I’m so confused and it makes me wonder if something was installed backwards when the solar company installed the Sense device. Am I crazy for thinking this?

(Also I should own up to the fact, that I turned on my solar 5 days before the power company swapped out my meter for a net meter. Could this be a cause for erratic readings in the graph after 5 days?)

Please help by explaining to me what my power graph is doing like I don’t know anything, because I really don’t.

What you are likely seeing is a Sense w Solar that didn’t quite get things right during setup.

One other interesting place to look would be under Settings > My Home > Monitor > Signals.

If configured correctly, it will look something like this during daylight hours (positive values on all 4 power legs)

This is what I see on that screen

Yup, likely configuration issue - neither of those mains should be negative - polarity is wrong for both. But I also notice that you haven’t finished “Signal Check”. If it has been more than 48 hours since you started setup, reach out to support@sense.com so they can finish/correct.

Thanks Kevin. It’s been 10 days. I’ve reached out to support and am so far not getting anywhere fast.

Can they fix it I’m software or should I be calling the solar company who installed it?

Sense support can fix / configure remotely. It’s just a bunch of bits set at the Sense mothership ?

Support has been looking at it for a couple of days now. they sent me a message stating numbers were looking more like what is expected. Hopefully that is the case. Thanks for helping here as well.

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Signal check never gets past 60%.

I tried running through solar setup again when I finally got a sunny day. For the first time Solar Setup actually completed. But it didn’t fix the signal check problem and now I’m getting negative numbers on my Mains again.

I had negatives in my mains before and Sense tech support fixed it.

What is actually going on here? Did my solar company electrician install the CT clamps backwards? Should I open the panel and look? I really don’t want to continue having issues and I really want to get past signal check so it can start identifying devices.

Also. I love this addition to the app but it is definitely not accurate.


This image showed correctly sending power to the house before I redid the solar setup.

I’ll suggest it again - check in with support@sense.com. Generally, even if your electrician has installed some of the CTs backwards, the Signal Check / Solar Calibration / Setup combo will fix. Seems like you are having a persistent setup issue - Solar install generally works OK, though I have only done it for initial install for all 4 CTS at the same time. The support folks should be able to fix from their end.

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Thanks I will reach out to support again. I may just open up the panel as well since I don’t want this issue coming back every time something resets.

@stevegoodmansen, you can play the flipping game to try to get your CTs to match the configuration Sense thought was correct, but don’t assume that they are in the default configuration that is shown in the manual. Better to use the Signals section.

FYI - you really shouldn’t need to redo Signal Check / Solar Calibration / Setup very often - usually only on first setup or if you move the Sense breaker or the solar-feedin breaker.

Signal check never gets past 60%.

I tried running through solar setup again when I finally got a sunny day. For the first time Solar Setup actually completed. But it didn’t fix the signal check problem and now I’m getting negative numbers on my Mains again.

I had negatives in my mains before and Sense tech support fixed it.

What is actually going on here? Did my solar company electrician install the CT clamps backwards? Should I open the panel and look? I really don’t want to continue having issues and I really want to get past signal check so it can start identifying devices.

Also. I love this addition to the app but it is definitely not accurate.


This image showed correctly sending power to the house before I redid the solar setup.

@stevegoodmansen , did this ever get sorted out ??