August 14, 20241 yr Has anyone else done this? Any thoughts on whether it makes sense? My Deye inverter used to have an incorrect measurement of the power taken from the grid, for example when in "Zero Export to CT" mode with Solar Sell activated. The core issue I've understood as being a manual extension to the CT coil leads going to the inverter. Some threads speak of doing these extensions with shielded CAT data cables, and the proper solution is probably to install a power meter. Basically I've always known precisely how much my household plugs consume, but for the geyser and stove, the Deye/Solarman readings of non-essential loads were always wholly inaccurate, by around 70% but always predictable. I tried it out to just adjust the CT coil ratio, from the usual 2000:1 ratio, through trial and error with running the known 3kW geyser load, to 7500:1, ie. just changed the setting on the inverter screen. Why I was less worried was because I'm trading with the grid through a 4-quadrant meter, so tripping up a prepaid meter is a non-issue for me. I also didn't care about 100% accurately knowing how much of my exported power is actually going to non-essentials versus finding its way past the municipal meter. I thought 95% accuracy should do okay for my needs. Is there anything seriously wrong with this approach that I'm missing though?
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