I have recently installed a solar edge monitoring system through Vivint Solar on my home and have received access to the SolarEdge website to look at the data. I have concerns about how the power production is calculated. When I calculate the energy production from the raw numbers provided, I consistently get an average of 3% lower numbers than the daily production solar edge reports when I run a simple trapezoidal integration routine on the instantaneous reported production.
I have even tried some spline interpolation routines to reduce the numerical error, but still get a large over reported error. When I run the same calculations on friends data that I have received, I get less than a 0.1% error. I'd be happy to run similar calculations for others to see if you have issues. It isn't a big error, but it does seem somewhat fishy that Vivint or SolarEdge is telling me that they are producing more energy than they actually are. I have purchased my system from Vivint instead of renting the system and buying the power, but it does make me wonder if Vivint is charging people more money somewhere with this little math bug. However, before I go down that path, I'd like to know if a.) my math is correct and b.) if anyone else has a similar issue.
Thanks,
Matt
I have even tried some spline interpolation routines to reduce the numerical error, but still get a large over reported error. When I run the same calculations on friends data that I have received, I get less than a 0.1% error. I'd be happy to run similar calculations for others to see if you have issues. It isn't a big error, but it does seem somewhat fishy that Vivint or SolarEdge is telling me that they are producing more energy than they actually are. I have purchased my system from Vivint instead of renting the system and buying the power, but it does make me wonder if Vivint is charging people more money somewhere with this little math bug. However, before I go down that path, I'd like to know if a.) my math is correct and b.) if anyone else has a similar issue.
Thanks,
Matt
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