I’m following this this tutorial to set up my Energy Management System.
My setup:
- 100W solar panel
- EPEVER MPPT 40A Solar Charge Controller
- 100Ah 12V Battery
I scrape the data from the charge controller with a custom utility.
The Epever api data can be read from register / address:
// register 0x04, for the following addresses
0x3100: { number: 'B1', name: 'PV array input voltage', unit: 'V', times: 0.01, description: '' },
0x3101: { number: 'B2', name: 'PV array input current', unit: 'A', times: 0.01, description: '' },
The custom utility let’s me get the readings from: \http://10.10.10.19:3000/json/0x3100
{
"0x3100":{
"register":"0x4",
"spec":{
"number":"B1",
"name":"PV array input voltage",
"unit":"V",
"times":0.01,
"description":""
},
"value":2156,
"computed_value":21.56
}
}
E.g. I am able to get 0x3100 Input Voltage:
And similar for 0x3101 Input Current
The EPever does not output PV Power.
I added the values for inputCurrent and inputVoltage
[can’t add another image as I’m a ‘new’ user…]
I need to combine the voltage and current to calculate the Power.
Is there a way to do this in a formula/rule?
I also want this Power value to be valid/used in the solar power forecast.
