@hawe1980 said in Grafana Tages bzw Wochensummen:
@dp20eic ```
SELECT non_negative_difference(last("value")) FROM "Wh" WHERE ("entity_id" = 'energy_day_fronius_inverter_1_10_0_0_199') AND $timeFilter GROUP BY time(1d) fill(null)SELECT non_negative_difference(last("value")) FROM "Wh" WHERE ("entity_id" = 'energy_real_produced_fronius_meter_0_10_0_0_199') AND $timeFilter GROUP BY time(1d) fill(null)
und dann als Expression subtrahiert $A-$B