Thank you for the enlightenment re your Kia EV.
I am surprised at the charge fees when out of home.

We had looked at whether to buy a hybrid/EV  in Australia here.
We have additional issues re the long distances travelled in this country.
EVs here are a considerably greater extra purchase cost.

Our daily drive is a Qashqai TL diesel, always returning 5.5L/100km (=53 mpg in old money).  It is en par with an elecric vehicle fuel cost.
A cheap-rate nightly charge is 18c/kwH, same as your 11c/kwh. 

Australia is still trying to encourage EV take-up, so charging stations are free, as seen in the link below. 
Ironically, the charging station halfway across the Nullarbor which is a road of  1650km, has a bloody great diesel generator behind it to provide the power for an EV hookup! 

Regarding saving the planet, I see UK CO2 emissions are 0.193kg/kwH, whereas in Queensland here it is an embarrassing 0.930kg/kwH.

So it is early days yet for us to invest - unless a 4WD robust model with 4 independent wheel motors and a range of 600km+ emerges! 

https://www.drive.com.au/caradvice/how-much-does-it-cost-to-charge-an-electric-car-in-australia/