I'm not sure how much you use "Daily electricity usage (minus off-peak EV charging)" for predictive charging?
Currently only allows one monthly figure.
Suggestions:
Have 12 months that can be prefilled by users so we don't have to remember to adjust
Alternatively links with actual data from Octopus api (if available) might allow actual data to be used? Perhaps using data (say) 5am to 11pm? To avoid impact of overnight ev charging? Or an additional field to indicate ev charging and typical monthly ev charging kwh