Reply To: How do I see the standby consumption of my smart plugs as daily Wh?

You already have PZEM’s own counter, energy_wh. Use it, don’t bother deriving energy from watts. I went through the same thing when I measured my fridge at home with the same module.In the Chart card, select the energy_wh key, bucket 1 day (1d), aggregate increase. increase is meant for counter-type values: it subtracts the last value of the previous bucket from the last value of each bucket. If the counter goes down (if you reset the PZEM or it rolls over at 9999 kWh), it counts that bucket as if it started from zero, so you won’t see a negative value.The advantage is this: even if the ESP32 drops off for a while, the counter keeps counting on the PZEM, and when it reconnects the energy difference in between isn’t lost. avg × 24 loses that gap.I think the midnight split you mentioned is this: day buckets are cut according to UTC, midnight to midnight UTC. Since Turkey is UTC+3, your “day” appears to start at 03:00 local time. If you write one line about this in the report, it won’t be a problem.If you also want a derived key in the stream (for example the difference at each reading), there is a Delta block, but it isn’t needed for a daily total. Both are explained here: Derived values.