Every year you hear about the rolling black outs in California[0][1]. It gets bad with heat waves and AC systems running. An AC unit is no where near the power draw of a fast charger.
Average AC power use is 8-27 kWh per day. Average milage is 38 miles per day. At 4 miles per kWh, that's 9.5 kWh.
Numbers get even better if you use kW per neighborhood rather than kWh, since charging is well distributed and mostly happens off-peak and AC use is concentrated during peak periods.
Why would that be the case? When people are at work, the power usage will drop but then spike when they come back. They get home, plug in the EV, turn on the stove/microwave, lights, turn on/up the AC. The power spikes are directly corelated to people being at home. Even if you schedule your EV to charge at night, your AC doesn't stop working because youre sleeping. This applies to the entire neighborhood.
Electricity is expensive in California. Virtually all EV owners will be taking advantage of the cheaper off peak rates when air conditioners don't need to offset the sun's heat.
Numbers get even better if you use kW per neighborhood rather than kWh, since charging is well distributed and mostly happens off-peak and AC use is concentrated during peak periods.