I’m trying to get my Photovoltaik production from the past day based on my persistence values. The values are stored each 2.5 seconds and the graph is looking fine.
In sum I produced approx 27 kw/h of energy which is confirmend by my device.
Now I’m struggling to get the same values out of the persistence.
Following rule is stored. Values are stored in w/h so they are divided by 1000 to get kw/h
rule "EMS Tag Durchschnittswerte" when System started or Time cron "0 0/1 * * * ?" then val zoneddatetime = ZonedDateTime.now.minusDays(1) val production = E3DCPowerPlant_PhotovoltaikLeistung.sumSince(zoneddatetime) / 1000 logInfo("EMS Daily","Production "+production)
2021-07-09 19:34:00.222 [INFO ] [.openhab.core.model.script.EMS Daily] - Production 1729.92993333
The value 1730 kw/h per day is wrong!
Divide with 24 Hours the value is approx 70 kw/h per day which is wrong!
Please give me a hint how to calcuate the produced kw/H from the last 24h!