Verschlimmbesserung Posted Wednesday at 01:22 PM Share Posted Wednesday at 01:22 PM Hi I have had my Shelly EM up and running for 2 1/2 full months and have compared the total energy usage with the usage as reported by my smart meter July - Shelly EM 349 kWh and Meter 379 kWh (30 kwh difference) August - Shelly EM 312 kWh smart meter 346 kWh (34 kwh difference) Shelly is under reporting roughly 10-15% Is that to be expected? I am surprised, is there a way to recalibrate the Shelly EM? would that help? Quote Link to comment Share on other sites More sharing options...
Hummelchen Posted Wednesday at 05:58 PM Share Posted Wednesday at 05:58 PM Wenn du auch eine (PV) Einspeisung und nicht nur Netzbezug mit deinem Shelly EM zählst, dann hast du das leidige Problem mit dem NICHT saldieren der Shellys. Siehe: https://www.wienenergie.at/blog/saldierende-vs-phasenbezogene-zaehler-erklaert Quote Link to comment Share on other sites More sharing options...
Verschlimmbesserung Posted Thursday at 09:36 AM Author Share Posted Thursday at 09:36 AM I understand but I do not have PV feed in system, I only take electricity from the Grid and have 1 phase (circuit) so it should be accurate in my opinion Quote Link to comment Share on other sites More sharing options...
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