Voltage discrepancy fix just deployed - let us know if you still see issues

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I went ahead and pulled in the January stats from my solar gateways as well and added them to my chart.

sensesunmaxjan-rev2.PNG757×726 18.6 KB

The Solar Gateway (collects stats from all the microinverters) readings are a bit wacky for the 1/8 - 1/15 period. I suspect that is due to me running beta firmware on my gateways (have a NDA in place with the vendor), and was working with them to tweak things.

But for the period 1/16 - 1/31, the microinverters are reporting production slightly higher than what Sense is. That would make sense since Sense is subtracting the loads from the shop sub-panel, and there is a bit of voltage loss as well between the micro inveters and the Sense CTs located some 200+ feet away.

p.s. The POCO called me back and confirmed the issue I saw on 1/25 and 1/26 was due to a known bug in their billing system when I produce more than I consume. They are working on it. Fortunately my net metering is very simple. My rate is always the same 24/7 365 days a year. If my bank grows very large over the coming years, they will cash me out as the same rate I pay them. My POCO is a CO-OP, so their policies are very friendly to their members. :slight_smile:

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I went ahead and bought another pair of solar CTs. If it’s a device-side problem, the errors will be exactly as they are now. If it’s a hardware problem with my CTs, the errors will be different - better hopefully, but worse if there’s a QC issue with the CT production. QC problems with the CTs would explain a lot of variance - how widespread it is and how all of us aren’t in one direction or another - Howard’s over reporting, I’m under reporting, etc… I have to get down to the bottom of this.

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