Charger Power Approximation

[emaberga81]

Hi, I use the Charger Power value to calculate the charging cost. I nooticed that it is always approximated to an integer number. Would be great if it would be approximated with for example 2 decimals value so it would give a much better precise cost result.
Is this something that can be done?

[emaberga81]

anyone interested other than me? @alandtse maybe you could have a look at this?

[alandtse]

Please don't randomly ping me. The code is open source and we'd take the PR if you really want it.

[delbz]

Yes, this would help with my overall energy management too.
Even one decimal point would make a big difference.

[InTheDaylight14]

Tesla API sends the charger_power without any decimal points. I suppose it can be changed to actual_current * charger_voltage / 1000

"charger_actual_current":12,
"charger_phases":1,
"charger_pilot_current":12,
"charger_power":1,
"charger_voltage":115

In my case the 5V drop between the plug and the car would not be captured but it could provide 1 more decimal point.

[delbz]

Yes, that would make it more accurate and help with overall home power management.
Or if you could write us the code below for a template sensor to calculate it, that would be OK too. 😉

[InTheDaylight14]

{{ (state_attr('sensor.<vehicle_name>_charger_power', 'charger_amps_actual') * state_attr('sensor.<vehicle_name>_charger_power', 'charger_volts') / 1000) | round(1)}}