Hello again, and thanks for helping in advance!
Today, I was trying to calculate my daily pv income within a rule but sadly I figured out that this is not easy.
I created two Number:Energy items to see the total amount of energy produced and the last day income.
My rule should be triggered at midnight what is not the problem but as my energy monitor only shows a total consumption value I need some calculation first. The variable energy_today show the value 80708400, what looks like a casting issue but I do not know how to make it right.
I hope someone can help to fix my rule, thanks.
Number:Energy total_energy_income "PV Ertrag Gesamt [%.2f kWh]" <energy>
Number:Energy yesterday_energy_income "PV Ertrag Gestern [%.2f kWh]" <energy>
var Number energy_monitor_yesterday = 0|kWh
rule "Record_Energy_Income"
when
Time is midnight
then
var Number energy_today = 0|kWh
var energy_monitor_today = pv_system_energy.state as QuantityType<Number>
logInfo("debug","monitor {}", energy_monitor_today)
energy_today = energy_monitor_today - energy_monitor_yesterday
logInfo("debug","Today:{} = {} - {}", energy_today, energy_monitor_today, energy_monitor_yesterday)
energy_monitor_yesterday = energy_monitor_today
logInfo("debug","monitor {}", energy_monitor_yesterday)
//var yesteray = yesterday_energy_income.state
//var today_energy = ( energy_monitor - yesteray)
//logInfo("photovoltaik","PV Ertrag war heute {}", today_energy)
//yesterday_energy_income.postUpdate(yesterday_energy_reading)
//total_energy_income.postUpdate(total_energy_income.state as QuantityType<Number> + today_energy)
end
Outcome
2022-03-09 23:32:40.482 [INFO ] [org.openhab.core.model.script.debug ] - monitor 22.419 kWh
2022-03-09 23:32:40.483 [INFO ] [org.openhab.core.model.script.debug ] - Today:80708400 = 22.419 kWh - 0 kWh
2022-03-09 23:32:40.484 [INFO ] [org.openhab.core.model.script.debug ] - monitor 22.419 kWh