There already is a dedicated electric motor for A/C. Any ancillary device uses power and HVAC is probably the largest non-motive user of power in an EV. There is no around this situation other than turning off A/C. If you are really concerned then maybe you need a car with a larger battery pack, if the e-Golf can't meet your needs. I find the A/C isn't a big issue since I usually drive in Eco mode and keep the temp at 77 or 78F when ambient temps are above 80 F.
2017 e-Golf LE, Multi Coat White with Black Vegan Leather interior